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DDITIONAL IMPORTANT NOTICES DIS DISC C CONCERNING FP ® STANDARD STANDARDS S
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715-1
Copyright© 2022National Fire Protection sociation®. l Rights Reserved.
® 715
Stdard fr the
Istallation of Fuel Gases Detection
Warig Equipment
202 Edon
This edion ofNF 715 Stan Standa dad fr the taa t aati tin n ofFuel ofFuel Gases Detec Detectin tin an and d Wing Equipment Equipment,, was prepared by the Technical Committee on Fuel Gases Warning Equipment. It wa was wass issued by the Standards Council on March 20, 2022, th an eective e ective date of April 9, 2022. This edition ofNFPA 715 was approved as an erican National Standard on April 9, 2022.
Orig d Development ofNF 715 There has ha s been inc·eased concern over fuel g hazards after several recent major tal incidents inc idents involving combustible gas releases thin residential and commercial buildings that went unreported or undetected from its odor. ile early warning detection devices exist r el gases, the requirements r use, installation, and placement of detection devices to maximize eay warning detection capability r consumers are limited, and manufacturer's installation ins-uctions are generally inconsistent across the product category. As a result, even where fuel gas warning devices are installed, improper installation could jeopardize building occupant safety in the event of a el gas leak in the building or om leaks of el gas entering the building om a breach in exterior piping or storage system. TheNational TheNational Fire Protection sociation was petitioned to develop a document to produce consensus for technicalb5ed requirements r the use, installation, and placement of fuel gas detectors and related equipment. TheNF The NF Standards Council approved the rmation of the th e Technical Committee on Fuel F uel Gases Waing Equipmen to develop this document.
NFPA and National Fire Protection Association are registered tademarks tademarks of the National Fire Ptection Association, Quincy Massachusetts Massa chusetts 02169.
INSALTION OF FUEL GASES DETECTION AND WRNING EQUIPMENT
7152
Techical Coittee on Fuel Gases Warng Equipment Stephen M. Olenick, Cair Combustion Science & Engineering, Inc, MD [SE] Jayvanessn, CNIGuard, N [M] Mark S Boone, AES Insurance Seces Limited NJ [] Kren Crippen, Gas Technology Institute, L [U] Nick Dearing, CerPoint Energy, IN [IM]
David Mills, UL LLC IL [RT] Larry Ratzlaff, Carrier/UTC/Kidde Saet Saety y L [M] Richard Richar d Jay Roberts, Honeell Fire Safty, IL [M] Noah Ryd Ryder, er, re & sk Alliance, MD MD [SE]
Gas Assoc Association iation (AG), DC [U] [ U] Luis Romeo Escobar, American Gas Murtaza Gandhi, BakerRisk Engineering & Risk Consultants, Inc, TX [SE] Rick Heernan Heernan,, SDi NJ [M] Rep. National Electrical Manufcturers Association Fama Gam aJENSEN HUGHES, CA [SE] Renee M. Lani, American Public Gas Association DC [U] Ron rus, New Cosmos USA IL [M] Jim Loftus, Siemens NJ [M] Rep. Automatic Fire Alarm Association, Inc. Inc . Jmes Andrew Andrew Lch, 1e Fire Solutions Group PA [SE]
De L San, SoCalGas, CA [IM] Joel Sipe, Exponent, Inc. CA [SE] Bruce J Swiec Swiecicki, icki, National Propane Gas Asso Associatio ciation n IL [U] Rep National Propane Gas Association Robert Torbin, Omega lex, Inc., M [M] Rick Trieste, Consolidated Edison Company o N, NY [M] Christopher Wagner, eris Propane, PA PA [IM] [I M] Ted Ted Williams Williams,, Natural s Direct, LLC V [SE] Robert D Wilson, Northeast Gas Association N [IM] Mike Woznicki, US Electric, IL [M]
Alternates WayneJ yneJ Aho,Jr, Sieme Siemens, ns, ndtry ndtry Inc NJ [M (Al to Rick Hefernan) Christopher Creamer, DynaFire, F [M]
Stephen J Jordan, Fire And Risk Alliance LLC, MD [SE] (Alt to Noah Ryder) Scot R. Lang, Hone Honeell ell Internaonal Internaonal IL [M]
(Al to Jim Lofus) Howard Hopper, UL LLC CA [ RT] (Al to Dad E Mills) Nir Hussain, Combustion Science & Engineering, nc l [SE] (Al t Stephen M Olenick)
(Alt to Richard Jaycan Roberts) Stuart Saulters, American Ameri Public Gas Association Association DC [U] (Alt l Renee M Lani) Kazuaki Watanabe, Figaro USA USA Inc IL [M] (Alt. to Ron Lazarus)
Chad Duy, NFPA StafLiaiso Liaison n
Th it te meeip a te lime Committ was baoted on tena tex textt oftis editn. Since tat tim, cangs cang s in te membeip membeip may av occud occud.. A k to ccat ccations ions found found at te back of te documt. NOTE: Membership Membership on a committee shall not in and o itsel constitute an endorsement en dorsement o the Association or any document developed by the committee on which the member serves Committee Scope: This Committee shall have primary responsibility responsibility or documents on the installation, perrmance, maintenance testing, and use ouel gases warning equipment fr the protection ole property and mission continuity. This Commiee shall address the selection, installation operation and maintenance o fel gases warning equipmen
2023
iin
CONNTS
7
Conten
Chapter Adm Ad mn ns sa aon on I.I Scope 12 Purpose Pur pose .......................... .................................... .......... 13 Applic App licatio ation n. ................................. 14 Retroactivity. ........................ Retroactivity. ................................... ........... 1 5 qvale valency ncy.. ....................... ................................. .......... Unitso Measure Measure ..................... ............................ ....... 16
7-4 7-4 7-4 7-4 7-4 7-4 7-4
Chapter Chapter 2 1 22 23 2.4
2 Referen Ref erenced ced Pub Publc lcat atons ons . . Genera Gen eral. l. ............... ............................... ................ NF NF Pub Publication licationss . .... ........ ........ ...... ....... .... Other Publicaons Publicaons.. ............. ....................... .......... Reerences or xtracts in Mandatory Sections. Sect ions.
7-5 7-5 7-5 7-5 7-5
Chapter 3.1 3.2 3.3
Denons General. ......................................... General. ........................................................... .................. NF Ofic Oficial ial Definitions Definitions. ......... .................. ................. .............. ...... General Definitions. Definitions. ......................... ....................................... ..............
7-5 7-5 7-5 7-6
.
.......................... ............
.
.
.
..
.
.
5.12 5. 12
Special Requirements or Low LowPowe Powerr Radio (Wireless) Systems. Systems. ........................
Notcaton Appla Applances nces for Fuel F uel Gs Detect Det ecton on Sy Syst stem ems s . ... .. Application ............. Application ........................... .............. Purpose.. .............. Purpose ............................ .............. General Gener al ............ .......................... .................. .... Audible Characteristics. Characteristics. .................. Visual Vis ual Characteristi CharacteristicsPubl csPublic ic Mode. .. ... ... ..... ... Visual CharacteristicsPrivate Mode. Mode. .. ...... ..... . Supplementary Visible Visible Signaling Methods Metho ds.. . .. ... Texal Audible Audible Appliances Applianc es ........ .............. ...... Texal and Graphical Visible Appliances Appliances .. ... . Tactile Ta ctile Appliances Appliances ............. ................... ...... mergen me rgency cy Serv Services ices Inte Interac races es .... ........ ...... ..
Chapter
.
6.1 6.2 6.3 6.4 6.5 66 6. 6.8 6.9 6.10 6.111 6.1
..
.
.
.
Fundamentals Fundamen tals of o f Fuel Gs Detecton Systems Application ........... Application ..................... .................. ........ Purpose Purp ose ......... ...................... .................... ....... q q pment ...... ......... ...... ......... ....... ...... ...... .. Personnel Qualifications Qualifications ........... .............. ...
4.1 4.2 4.3 4.4
.
.
7- 7- 7- 7- 7-8
7-42 7-42 7-42 7-42 7-42
Chapter 8 Inspecton, Inspec ton, Testng Testng,, and Mntenance 8.1 Application ............... Application ........................... ................. .....
7-42 42 7-4 7-
.
.
.
.
.
4.5 4.6 4. 4.8 4.9 4.1 4.11 4.122 4.1 4.13
Power Supplies. Supplies . ........ .................. .................... .......... Distinctive Signals. Signals . ............... .................... ..... Alarm Signa Signa ........ .................... ...................... .......... Super�sory Super�so ry Signals Signals ............... ..................... ...... Troub rouble le Signals Signals ....................... ............................ ..... Fuel Gas Control Function Staus us Indicators. Indicators. Perormance Peror mance an d Limitations Limitations ... ....... ..... ... Annunciation Annunci ation and Annun Annunciation ciation Zoning . . Monitoring Integrity and Circuit Perrmance o Installation Conductors and Other Signaling Channels.. ........................... Channels Documen Docu mentati tation on .......... .................. ........
.
.
.
.
4.14
Protected Premses Fuel G Detecton Syst Sy stem ems s .. .. Appli Ap plicati cation on. ....................... ................................ ......... General. Genera l. .................................... System Features. Features. ................. ........................... ..........
7-8 7-11 711 711 712 712 713 713
51 5.2 53 54 5 5
.
System Perormance and Igrity. Igrity. .... .......... ....... ... Perrmance o Initiating Device Circuits (DCs) ................ .................................... .................... Perrmance o Signaling Line Circuits (SL) (SL ) ....................... .................................. ........... Perrmance o Notification Appliance Circuits (NACs) (NA Cs) . .................................... System Syst em Requirements Requirements.. .................... Signal Sig nal Annu Annuncia nciation tion .................... ....................... ... OPremises O Premises Signals Signals ....................... Protected Premises Fuel Gas Control Functions.. ................................. Functions .
5.6
5.7 .7
58 59 510 511
..
..
8.2 8.3 8.4 85 86 8. 88
Gener General al ................... ................................ ............. Inspection Inspection. . .................... .............................. .......... Testing ........... Testing ......................... ...................... ........ Maintenance. ............ Maintenance. ............................ ................. . Records .............. Records ......................... ..................... .......... Single and MultipleStation MultipleStation Fuel s Alarms Alarms Household Fuel s Detecon Detec on Syste Systems ms.. . ... .. .
.
7-42 7-43 7-43 7-43 7-46 7-46 7-51
7-24 7-24 7-24 7-24
9.1 9.2 9.3 9.4 9.5 96 9. 9.8
Sngle- d Multple-Stat Multple-Staton on Alarm Alarms s and Household Fuel G Detecton . Application .............................. Application ................................ .. Purpose. .................................. Purpose. Basic Requirements Requirements.. ........................ Required Pr Protection otection.. ................. ....................... ...... Power Supplies. Supplies. ............................... quipme qu ipment nt Per Peror orma mance nce ................. Installation. ................... Installation. ................................. .............. Inspection, Testing and Maintenance Maintenance . .... ..... ..
Chapter 9
7-59 7-59 7-59 7-59 7-59 7-60 7-61 7-63 7-64
7-25
9.9
Markings and Instructions Instructions.. ...................
7-64
713 714
Chapter
7 34 7 34 7 34 7 34 7 34 7 36 7 39 7 39 7 39 7 40 7 40 7 40
Chpter 7 Off-Premses Sgnl Transmsson .1 Application ........................ Application ............................................... .............................. ....... .2 General Gener al ..................... .......................................... ...................................... ................. 7.3 Prearranged Testing. Testing. ...................... ...................................... ................ .4 Operation and Record Keeping Keeping ..... ........... ............ ......... ...
.
Chapter 4
7-32
7-26 7-26 7-28 7-28 7-31 7-31 7-32
..
..
.
.
.
Annex A
Explanatory Materil l ... ...
Annex B
Dngers and Propertes ofFuel ofFuel Gses .
7-95
Annex C
Gudelnes for Emergency Responders .
7-96
Annex D
Inorma Ino rmaton tonal al Reference References s . .
7-9
Index
7-64
7-9
2023
Eiin
715
INSALTION OF FUE GASES DETECTION DETECTION AND WNING EQUIPMENT
NFA 75
occupants occupan ts to eith either er escape or take take other action and to summon aid where needed.
Standard for the
Installation of Fuel Gases Detection Waring Equipment
ad
2023 Eition Eition
22 The requirements provided by this standard shall address the means of signal initiation ·ansmission, notica tion, and annunciation; the levels of perrmance; and the reliability of fuel gas detection and warning equipment. Applcation. The requirements of this standd shall apply to the
IMRTANT IMRTA NT NO NO: : is NFP NFPA c cum umen en is ma ma avible avible for u subjc sub jc o ior ior is and gal gal dclaime e ices and dilaie appear in al publicaions cong is documen a m b fo foun und d ud e eading "Ior Noices d Dilaime ing NFPA Dilaime NFPA Sndas can also also be be ved a nao naod dci ci or obined on reques requesm FPA. UPDAT, A, F EIONS: Ne ediions of A A codes, codes, sndas, remeed pract practes, es, a uides (i.e., PA P A S Sdas) das) a lease leased d on seduled rs s. is ediion ma may y be supe supeed eded ed by a lar one, or i i may be amended oui ou i of i hedu heduled led vision cle cle ough ough e in of naive In Amend Amendens ens (Ts). An oal o al NFPA NFPA Sa a poin poi n in ime consiss of e curn ediion of e docuen, oge ogeer er w all all Ts a Erra Erraa a in eec eec To ver a is cuen cuen e cen c en ediion or o o dermine i has been amen amended ded by T or Er r, , plea ul ul e Naional Fi des® des® Sub Subi ion on Si Si or e "L "Lis is of A Cdes Cdes & Snd a wma.or a.ordoci. doci. In ai aiio ion n s and and Er Era a,, e cumen iormaion iormaio n pag pages es ao ilude e ion sin for alesr iividual cumen d b inod in develpmen of e n. NOTI: An asterisk (*) follong th the e number or letter designating a paragraph indicates that explanatory material on the paragraph c be und in Annex A. A reference in brackets [ ] llong a section or paragraph indicates material that t hat has been extracted om another NFPA document. Ex·acted text may be edited r consistency and style and may include the 1·eviion of internal paragraph references and other rerences as appropriate. Requests r interpretations or revisions of exacted text shall be sent to the technical committee responsible r the source document. Inrmation on rerenced and ex·acted publications can be und in Chapter 2 and Annex D. Capter Admsation * Scope.
standard rd shall be concerned with li li safety and . This standa protection of property.
installation of el gas detection d warning equipment, including the llowing: (1) (2)
Single and multiplestation multiplestation fuel gas alms Fuel gas detectors and their related stems and compo nents
2* Fuel gas detection and warning equipment shall not be used in lieu of re or carbon monoxide detection or warning equipment required by NFPA 72,NF 101, or NFA 5000. 4 Retroactivty. 4 Unless otheise noted, the provisions of this document
sha not be applied to cilities, equipment, struces, 0 installations that were existing or approved r construction or installation prior to the eective date of the document. 42 In those cases where it the is determined by the involves authoritya havin jurisdiction (AHJ) that existing siation distinct hazard to life or property, re·oactive application of the provisions of this document shall be permitted. 5 Equency 5 Nothing in this stdard shall be intended to prevent the use of systems, metho, devices, or appliances of equiva lent or superior qualiLy, sength, re resistance, eectiveness, durability, and safey over those prescribed by this standard. 52 Technical documentation shall be submitted to the A
to demonsate equivalency. 5 Systems, methods, devices, and applices sha be
approved r the intended purpose by the HJ. 6
Unt of Measure.
6 The units of measure in this thi s standard shall be presented in US customa1un customa1units its (i.e. (i.e.,, inch/pound units). 62 Where presented, International System (SI) units shall follow the inch/pound uni5 in i n parentheses. 6 \Vhe1·e both systems of units are pesented, either s'tem shall be acceptable r satising the requirements in this stand ard.
a pplica 2* This standard shall cover the selection, design, applica tion, installation location, perrmance, inspection, testing, and maintenance of e! gas detection and wning equipment in building and sctu1·es.
64 Where both systems of units are presented, both of the llowing shall apply:
This standd shall contain requirements r the selec-
(1) Users of this standard shall apply one set of units consis
tion, installation, operation, and maintence of equipment that detects concen·ations of fuel gases that could pose a l or property safety risk.
(2)
2* Purpose. 2 Th The e purpose of this standard shall be to p1·ovide require-
ment r el gas detection and warning equipment intended to warn occupants of the presence of fuel gas in time to allow
tently. Users of this standard shall not alternate beeen units.
65 The values presented r meurements in this standard
shall beorcement. expreed with a degree of precision r application and e orcement.
2023 Edition
DEFINITIONS
715-5
.6.6 It shall not be the intent that the application or enrce-
2..5 ISO Publicatios International Organization r Stand-
ment of the values pesented for measurements in this stand ard be more precise than the precision expressed.
dization, ISO Central Secretaiat, BIBC II, Chemin de Blandonnet 8, CP 40 1214 Vernie Geneva Switzerland.
.6.7* ere extracted text contains values expressed in only one system of units, the values in the extracted text shall be retained without conversion to preserve the values established by the responsible technical committee in the source document.
ISO 7731 gonomi - Da Dang nger er signa signa public and a nd w w a: -Audty danger signa, 2003. 2..6 UL Publicatios Underwriters Laboratories Inc., 333 Pngsten ngsten Road, Northbrook, IL 600622096. 600622096.
UL 1484, Ridential G Detecto, Detecto, 2016. Chapter 2 Referenced Publications 2. Generl The documents or portions thereof listed in this
chapter are referenced within this standard and shall be considered part pa rt of the ·equirements of th document. 2.2 NFA Publicatios National Fire Protection sociation,
1 Batterymarch Park, Quincy, MA 021697471. 7, NationalEltcal de®, 2023 edition. NFP 7, National Fre Alam and Signaling Code®, 2022 edition. NF 101 ®, L Le e Safe Code®, 2021 edition. NF 110, Stan Standa dadforEmeen and Standby Pow Ste, 2022 edition. NF 111, Stand Standa ad on Stod ! ! eccal Ener Ener Emegenc Emegencyy and a nd Standby 2022 edition. NFPAPower 170, Syste, Standardf or or re S S and Em Emeg egen Symb Symbol ol, , 2021 edition. NF 1225, Standard Eme Emeg gen S Svic vic Communicatio Communicatio, , 2022 edition. 500? Buildin Building g Constructio Construction n and Saf Safe e Code®, 2021 edition.
UL 1638, i ible ble Si Sia alin ling g Devic m F Fre re Alar and a nd Signalin Signaling g Syst ysts, s, Including Acc�s Acc�s 2016. U 197, Sinaling Devic Devic f fr h hee Hea Heang ng Impaired Impaired 2002, revised 2018.
UL 2075, G G and Vapor Detectrs Detectrs and an d Sensors, 2017. 2..7 2.. 7 Other Publicaos
Merriambster' Colleate Dictionary, 11th edition, Merriamebster, Inc., Springield, MA, 2003. ebster, 2.4 References for Extrac in Mandatory Sections.
A 72®, National r Ala and Siang Cod, 2022 edition. NF 21, Sand Sandard ardfor Chimne Chimne, , plac, nts, an and d Solid uelBui uelBuing ng Applianc, 209 edition. NFPA 1225, Sta Standa ndadfr en Sei Communications, 2022 edition. NPA 50 500 0 ? , Building Building Cotruction Cotruction and Safety Code®, 202 edition. Chapter Deios
2. Other Publicatios 2.. ANSI Publicatios American National Stand Standards ards Insti-
tute, Inc. (operations) 25 est 43rd Street, 4th Flo New York, 10036; (headquarters) 1899 L Street, Street, 11th Floor '"ashington, DC 20036. ANSI S l , Eltausti - Sound Level Mete, 2014. ANSI S3.41, Audibl Audiblee Emege Emegen n Evacuation (E (E2) 2) and a nd Evaation a with Relocati Relocation on Instructions ESR), 2015. 2..2 ASCE Publicaons American Society of Civil Civi l Engineers, 1801 Alexander Bell Drive, Reston, VA 201914400.
ASCE/SEI 7, Mini Minimum mum Di Loa and a nd Assoated Critea for Buildin Buildin and Ot Ot rr Structu Structus, s, 2016. 2.. Publicaos IEEE Operations Center, 445 Hoes Lane,, Piscataway, NJ 088544141. Lane
IEEE 450, Recommended Pctice for Maintenance, sti sting, ng, and a nd Rlacement of nted LeadAcid Batte for Stationary A/licatio, 2020. IEEE 1106, Rcommended Pctice for Installation, Maintnance, Testi esting, ng, and R Rplacent placent of nted ckelCadmium Batteries Batteries for Stationary Aplications, 2015. TI
2..4 1310 Publicatios Telecommunications Indust Association, Nor Courouse Road, Suite 890, lington, VA 22201.
ANSI/TIA 568C 568C.3, .3, Optical Fber Cabling Cabling Componen Componen Standa Standad, d, 2015.
. General The denitions nitions contained in this chapter shall apply to the terms used i this standard. Were terms are not dened in this chapter or within another chapte� they shall be dened using their ordinarily accepted meanings within the context in which they are used. MeaWebster' Colleate ction, 11th edition, shall be the source r the ordinarily accepted meaning.
Of cial Deitios .2 NFA Of .2.* Approved. Acceptable to the authority having jurisdicjuris dic-
tion. .2.2* Authority Having Jurisdiction (q). An organization, oce, or individual responsible r enforcing the requirements of a code or standard, or r approving equipment, materials, an installation, or a procedure. .2. Labeled Equipment or materials to which has been attac hed a label, symbol, or other idening mark of an organattached ization that is acceptable to the authority having jisdiction and conceed with product evaluation, that maintains periodic inspection of production of labeled equipment or materials, and by whose labeling the mancturer indicates compliance with appropriate standards or perrmance in a specied mner. .2.4* Listed Equipment, materials, or seices included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of p·oducts or se·vices, that maintains periodic inspection of production of listed equipment or materials or periodic evalua
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7156
INSALTION OF FUE GASES DETECTION DETECTION AND WNING EQUIPMENT
tion of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and und suitable r a specied ed purpose. .2.5 Shall. Indicates a mandatory requirement. 2.6 Sho Should. uld. Indicates a recommendation or that which is advised but not required. .2.7 Sta Standa ndard. rd. An NF Standard, the main text of whic which h
contains only mandatory provisions using the word "shall to indicate requirements and that is in a rm generally suitable r mandato reference reference by another standard o code or r adoption into law. Nonmandatory provisions are not to be considered a part of the requirements of a standard and shall be located in an appendix, annex, otnote, inrmational note, or other othe r means as permitted in the NF Manuals of Ste. Vhen used in a generic sense, such as in the phrase "standards development process or "standds development activities, the term "standards includes all NFPA Standds, including Codes, Standards, Recommended Practices, and Guides.
safety systems and that collects environmental data or perrms specic input ooutput oout put functions necessa necessa to the operation operation of safety ty system. system. [72, 2022] the le safe 6 Dwelling Unit. One or more rooms arranged r complete, independent housekeeping purposes, with space eating, living, and sleeping; cilities r cooking; and provisions r sitation. (5000 2021 l ..7* ergency Response Agency (). Organizations
providing law enforcement, emergency medical, re, rescue, communications, and related SUpport seices. [ 225, 2022 8 ergency Response Response Plan Plan A documented set of actions to address the th e planning r, management management of, and response to natural, technological, and manmade disasters and other emergencies. [72, 2022] 9 d-of-Lfe Signl An audible signal, d d ering from the alarm signal, intended to indicate that the device has reached the end of its useful life and should be replaced. .0 Fireplace. A hearth, re chambe� prepared area and a chimney. [2II 2019
or
similarly
General Denitions
.. Frequency. Minimum d maximum time between
* Acoust Acoustically ically Distinguishable Space (A (ADS) DS) An emergency communications system notication zone, or subdision ision thereo that might be an enclosed or otherwe physically dened space, or that might be distinguished om other spaces because of derent acoustical, environmental, or use characteristics, such as reverberation time and ambient sound pressure level. (72, 2022
events. [72, 2022]
2 lrm. ..2 Fuel G Alarm A singl single e or multiplestation el gas alarm intended r the purpose of detecting el gas and alerting occupants by a distinct audible signal comprising an assembly that incorporates a sensor, conol components, and an alarm notication appliance in a single unit operated om a powe source either located in the unit or obtained at the point of installation. ..2.2 Multple-Pose Am. An alarm that incorporates detection capabilities for more than one hazardous condition, such as re, fuel gas, or carbon monoxide. ..2 on Alrm A singlet singletation ation el g alarm capable of being interconnected to one or more additional alarms so that the actuation of one caes the approp rte te alm signal to operate in all interconnected alarms. .2.4 aion Alarm A fuel gas device comprising
an assembly that incorporates a sensor, control components, and an alarm notiction appliance in one unit operated om a power source either located in the unit or obtained at the point of installation. .. Co Combination mbination Syste System. m. See 3.3.31, Stem. .4* Co Communications mmunications Cen Center. ter. A building or portion of a building that is specically congured r the primary purpose of providing emergency communications seices or public
safety sri sring ng point (PS (PSAP) AP) services to one or more public sety agencies under the authority or authorities having jurisdiction. [225 2022 supervi sed component of a life .5* Devce (Clss A supervised safety system that communicates with other components of life
que. . F ... Week que Fftytw ftytwo o times per pe r ye, once per calendar week. [72, 2022] 2 Monh equenc. Twelve times per yea year, r, once per calendar month. [72, 2022] . Qa Fque. Four times per year with a minimum of 2 months, maximum of 4 months. (72, 2022 ..4 Semiaual Fque1 Tce per year with a minimum of 4 months, maximum of 8 months. [72, 2022 ...5 Annual Fque1. Once per year th a minimum mi nimum of 9 months, maximum 15 of months. [72 2022 .2* Fuel Gas. Any number of gasses that, when combined
with an oxidizer (typically air or oxygen), could be burned to produce thermal energy. * Fuel-Gs-Burning ppliance A dece that burns
gaseous fel. 4* Fuel Gs Control Function Interface Devce. A l ted ted fuel gas detecon detecon system component that directly inter in terces ces with the system that th at operates the el el gas control cont rol nc ncon. 5 Fuel Gs Conol Functions. Fuel gas control elements or systems that are initiated by the el gas detection stem d either increase the level of life saty for occupants or control the spead spead of the harmful effect effectss of el gas.
mpo .6* Fuel Gas Detection Control Unit (FGDCU). A co mpo nent of the el gas detection system provided ith primary and secondary power sources, which receives signals om initting ting devices or other el gas detection control units, d processes these these signals to determine pt or all of the required fuel gas detection system output function(s). 7 Fuel Gs Detector. A de\ de\ce ce having a senso sensorr that responds to el gas that is connected to an alarm control unit.
detector, r, ala .8 Fuel Gs Wrning Equipment. Any detecto device, or material device, material related related to single single and multiplestatio multiplestation n alarms or household el gas detection systems.
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FUNDAMENTALS FUNDAMENT ALS O F FUEL GAS DETECTIO DETECTION N SYSTEMS
339 Gateway. A device that is used in the tran transss ssson on of serial data (digital or alog) om the el el gas detection control unit to other building system control units equipment or networs and/or om other building system control units to the el gas detection control unit. 3320* Lower Explosive Limit (L). The minimum concentration of a gas in air that, if ignited, \ill propagate ame throughout the gasair mxture independently of continued application of the source of ignition; expressed as a percent by volume of gas in air also known known the lower lammable limit (LFL)].
ard and designated as such by the authority having jurisdiction. [7 0] 333 Syst System em 3 3 33 3 Combi Combinai naion on Fuel Fuel Gas De Deec eci i< < . A el gas detection system in which components are used in whole i n part, part , in common commo n th a nonel ga gass signali s ignaling ng system, sys tem, d in which components are not used as pt of a el gas detection system. 33 3 33 32 2** Combinaion Sys ysem. em. A re re alarm system in which components are used in whole or in components i n part, in common with a nonre signaling system. 7 0]
332* Non Nonre required. quired. A system component or group of components that is installed at the option of the owner and is not installed due to a building or re re code requirement. 7 02 3.3.22 Notication Applince. A e ell gas system component such as a bell, ho loudspeaker, visual notication cation applice, or text display that provides audible, tactile, or visual outputs, or any combination thereof.
3323 Occupiabl Occupiable. e. A room or enclosed space designed r human occupancy. [7 0
715-7
33 3 33 33 3 Fi Fi Ala Ala Sysm A system or portion of a com bination system that c o nation ois is of components components and circuits arranged arran ged to monitoa nd annunciate the status of re alarm or supervisory signalinitiating devices and to initiate the appropriate appropria te respon response se to those signals. 7 202] 33 3 33 34 4 Fue Fuell Gas Gas Dec Decion ion m. A system or portion port ion of a combination system that consists of a control unit, compo nent, , and circuits arranged to monitor and annunciate the status of el gas alarm initiating devices and to initiate the appropriate response to signals to protect life and property.
3324 Occupiable rea rea.. An area of a ci cilit lityy occupied by people on a regular basis. 7 0]
333 Household Fuel G ecion sm A system of
332* Of Offf-Pr Premises emises Monitoring. Systems requiring transmission of signals to continuously attended loations providing supervising supervisin g station service monitoring.
devices that uses for a control unit toofproduce alarm signal in the household the ppose notinganthe occupants of the presence of concentrations of el gas that could pose a life safety risk.
3326 Operating Mode. 3326 33 26 Pva erat eratng ng de de.. Audi Audible ble or o r visual visu al signaling only to those persons directly concerned th the implementation d direction of emergency action initiation and procedure in the area protected by the el gas detection system. 33 3 326 262 2 blic Opei Mo Mo Audible or visual signaling to occupants or inhabitants of the area protected by the el gas detection system. 332 Protected Premises. Premises. The physical location protected by a el gas detection system. 3328* Sleeping rea. The area of a dwelling unit where the bedrooms or sleeping rooms are located. [7 0] 3329 Signal. 3329 33 29 Fuel Fuel Gas A A Si Sil l A signal indicating a concentration of e! gas at or above the alarm threshold that could pose a risk to the lfe safety of the occupts and that requires immediate action. 33 3 329 292 2 Superv Superviso iso Sina Sinal l A signal indicating the need r action in connection \ith a prealarm condition, or in connection with the supervision of protected premises el gas sety functions or equipment or the maintenance features of related systems.
3332 Zone. A dened area within the protected p rotected premises. A zone can dene area om which a signal can be received, an area to which a signal can be be sent, an area in which a form of control can be executed. 7 0] apter 4 Fundam Fundamentals entals of Fue l Gs Detection Detect ion S Stem temss
4 Application. 4 The basic nctions of a complete fuel gas detection stem shall comply th stem th the requirements of this chapter. chapt er. 42 The requirements of this chapter shall apply to el gas detection syste, equipment, and components addressed in 5 through 8 of th th document. 42 Purpose. The purpose of el gas detection stems shall be primaily to provide notication of predetermined e>Osure e> Osure levels of el gas. 43 Equipment. 43 Equipment constructed and installed in conrmity with tlis standard standar d shall be listed in accordance th the llowing llo wing
(1) (2)) (2
Residential el g detectors and alarms shall be listed in accordce with UL 1484, Re Reide identi ntial al G Detecto Detecto . . Fuel g g detectors shall be listed in accordance acc ordance with UL 205, G and Vap!r Dettors and Se.
33293* Tuble nal A signal initiated by a system or
432* Co Components. mponents.
device indicative of a ult u lt in a monitored circuit, system, or or component.
432 System components shall be installed, tested, inspected, and maintained in accordance accordan ce th the manuct manu cturer urer 's published instructions d is standard. 7:10.3.]
3330 Supplementary. A used in this standard, sumentary rers to equipment or operations not required by this stand
433* All devices and appliances that receive their power om an an initiating device circuit (IDC) or signaling line circu circuit it
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7158
INSALTION OF FUE GASES DETECTION DETECTION AND WNING EQUIPMENT
(SLC) of a control unit shall be listed r use th the control unit. 7:10.3.3]
through training and experience that are acceptable to the AH or meet the requirement of 4.4 4.4.3. .3.4. 4. 7:10 7:10.5.3.l .5.3.l ]
here no e gas detetion product listing standard exists, produc listed r re re alarm service shall be permitted provided all the requiements of this standard are met.
Testing Personnel. Testing personnel shall have owledge and experience experien ce of the testing requiremen contained in this standard, of the equipment being tested, d of the test methods. That knowledge and experience shall be acceptable to the or meet the requirement of 4.4.3.4. 7:10.5.3.2]
4.3.4*
4.4
Personnel Qualications.
4.4.1
System Designer.
4.4.1.1 Fuel gas detection system plans and speciications shall be developed in accordanc accor dance e th i iss standard standar d by persons pers ons who are knowledgeable and experienced in the design, application, installation, and testing of the systems. 4.4.1.2 \ere available, state or local license regulations shall be llowed to determine qualied ed personnel. 4.4.1.3 Depending on state or local license regulations, qualied ed personnel shall be permitted to include, but not be imited i mited to, one or more of the llowing llowing
(1) Personnel who are ctory trained and certied ed r el g detection stem g stem desi design gn of the t he specic type and an d brand of system being designed and who are acceptable to the (2) Personnel th experse in the design of el gas detection systems that e registered, licensed, N certied by state or local authority 4.4.1.4 The system designer shall be identied on the system design document. 7:10.5.1.4 4.4.1.5 The system designer shall provide evidence of their qualications and/or certications when required by the AHJ. 7:10.5.1.6] 7:10. 5.1.6] 4.4.2
System Installer.
Installation personnel shall be qualied or supervised by persons who are qualied in the installation, inspection, and testing of el gas detection systems. 4.4.2.1
Fuel gas alms that receive their prima power om a battery or plug into an AC receptacle shall be be permitted to be installed by the occupt of the dwelling unit in accordance th the manucture manuct urer' r'ss published instructio ins tructions. ns. 4.4.2.2
here availabl available, e, state or local lo cal licens l icens e e regula regulations tions shall be llowed to determine qualied personnel.
4.4.2.3
Depending on state or local liceure regulations, qualied personnel shall be permitted to include, but not be limited to, one or more of the llowing (1) Persoel who are cto trained and certied r el gas detection system installation of the specic type and brand of system being designed and who are acceptable to the AHJ (2) Personnel with expertise in the installation of el gas detection systems that are registered, licensed, or certied by a state or local authority 4.4.2.4
The system installer shall provide evidence of eir qualications qualica tions and/or and/ or certications when requested by the AHJ.
4.4.2.5
[7:10.5.2.5 4.4.3*
Inspection, Testing, Testing, nd Serce Person Personnel. nel.
shall be 4.4.3.1 * Inspection Personnel Inspections perrmed by personnel who have developed competence
4.4.3.2*
4.4.3.3 Service Personnel. Seice personnel shall have knowledge and experience of the maintenance and servicing requirements contained in this standard, stand ard, of the equipment being seiced or maintained, and of the servicing or maintenance methods. That knowledge and experience shall be acceptable to the or meet the requirement of 4.4.3.4. [7:10.5.3.3 4.4.3.4 Means of Qualication. Qualied personnel shall include, but not be limited to, one or more of the llong
Personnel who are ctory ained and certied r the specic type and brand of system being seviced (2) Personnel who are certied by a nationally recognized certication organization acceptable to the AHJ (3) Personnel who are registered, licensed, 01 cetied by a state or local authority to perform service on systems addressed within the scope of this standard, either individually or t·ough their aliation with an organization (4) Personnel who are employed and qualied by an organization listed by a nationally recognized testing laboratory for the servicing of systems thin the scope of this standard 7:10.5.3.4] (1)
4.4.3.5*
Progrmming Personnel.
Personnel programming a system shall be certied by the system manufacturer. 7:10.5. 7:10.5.3.5.1 3.5.1 l
4.4.3.5.1
4.4.3.5.2 System installation personnel shall be permitted to con gure systems congure systems in e e eld per manuct manu ct· ·ers ' published instructions. [7:10.5.3.5.2]
System end users shall be permitted to manage system operation per manufacturers' published instructions or training. 7:10.5.3.5.3] 4.4.3.6 Evidence of Qualication. Evidence of qualications shall be provided to the AHJ upon request. 7:1.5.3.6] 7:1.5.3.6]
4.4.3.5.3
4.5
Power Supplies.
4.5.1 Scope. The provisions of this section shall apply to power supplies used r el gas detection systems. 4.5.2 Code Conformance. ll power supplies shall be italled in accordance with the applicable requirements of NFPA 70. 7:10.6.2] 4.5.3
Power Supply Sources.
Power shall be supplied in compliance with either 4.5.3.2 or 4.5.4. [7:10.6.3.1 l 4.5.3.1
4.5.3.2
Unless congured inpower compliance at least two independent and reliable supplieswith shall4.5.4, be provided, one prinary and one secondary. 7:10.6.3.2] 7: 10.6.3.2] 4.5.3.3 Each powe· supply shall be of adequate capacity · the application. [7:10.6.3.3]
2023 Edition
FUNDAMENTALS ALS O F FUEL GAS DETECTIO DETECTION N SYSTEMS FUNDAMENT
Monitoring the integrity of power supplies shall be in accordance with 4.13.16. 7:10.6.3.4
4..3.4
The power supply voltage and ampacity shall be in accordance accordan ce th the equipment manufactur man ufacturers ers installation instructions where the input volta voltage ge is no less than 8 5 percent or more an an 110 percent of the equipment's equi pment's nameplate rating. 4..3.
4..4
Stored
Ener
Emergency
Power
Supply
Systems
(SEPSS). A SEPSS that is not arranged in accordance with 10.6.4.2 of NPA 72 shall comply with all of the llowing (1) An SEPSS shall be congured gured in compliance th NF 111 r a Type 0 or U Level 1 system. m amum (2) The SEPSS shall be capable of powering the ma required system load. (3) The SEPSS shall have capacity in accordance th 4.5.6.2. 4.5.6.2. 7:10.6.4. l J
4..4.
SEPSS shall comply with the requirements of 4.5.5. :10. 10.6.4 6.4.3 .3 J
4..4.2
4..4.3 Failure of an SEPSS shall result in the initiation of a trouble signal in accordance ac cordance th 4.9. 7:1.6.4 7:1.6.4.4 .4 ] 4..
Primary Power Supply.
4... Branch Circuit. The branch circuit supplying the el gas detection stem stem equipment equip ment (s) shall be suppl supplied ied by one of of the llong (1) Commer Commercial cial light and power accordance ance (2) An enginedriven generator or equivalent in accord th 4.5.10.2, where a person specically cally ained in its operation opera tion is on duty at al l times an ged r (3) An enginedriven generator or equivalent ranged cogeneration th commercial commercia l light d power pow er in accordance with w ith 4.5.10 4.5.10.2, .2, where a person speci s pecicaly caly trned in its operation is on duty at all times
The brch circuit supplng the equipment shall supply no other loads. [7:10.6.5.1.2] 4...2*
4...3
Circuit Identication nd Accessibiliy.
4..6
715-9
Secondary Power Supply.
4..6. *
Secondary Seco ndary Power Supply for Protected Protected Premises Fuel G Detection Systems.
4..6.. The secondary power supply shall consist of one of the llowing (1) A storage battery dedicated to the el g detection system arranged in accordance with 4.13.16 (2) A automaticstarting, enginedriven generator serving the branch circuit specied in 4.5.5.1 and arranged in accordance with 4.5.10.3, and storage batte·ies dedicated to the el gas detection system th 4 hours of capacity arranged arran ged in accordanc acc ordance e th 4.5.9 4..6..2 Seconda circuits tlat provide power to the control unit and are not integral to the unit shall be protected against physical damage. [7:10.6..3.2] 4..6.2
Capacity.
Were e a combination (re) system is used, the 4..6.2. * Wer secondary power supply capacity requirements shall comply with wit h 4.5.6.2.3 and th those thos e of NFPA 72. here a combination el gas detection system is used, the secondary por por supply capacity requiremen shall comply with 4.5.6.2.3 and with the provisions of the applicable NF code or standard. p ower supply shall comply th both 4..6.2.3 The secondary power of the llowing (1) Have suci sucient ent capacity to operate the e ell gas detection detection system under quiescent load (i.e., system operating in a nonalarm nonala rm condition) for a minimum of 24 hours 24hourr period, be capable of operating (2) At the end of the 24hou the el gas detection system d all notication appliances r 12 hours, unle otherse permitted or required by 4.5.6.2.3.1 rough 4.5.6.2.4. 4..6.2.2*
4..6.2.3.* a minimum, battery calculations shall apply a correction ctor of 1.25 r aging to ensure the battery c meet its current demand at the end of ser ce li . :10.6..2.14 4..6.2.3.2
4...3.
The location of the branch circuit disconnectg means shall be be permanently identied ident ied at the control unit. :10.6. : 10.6..2.1 .2.1 The circuit disconnecting means shall be both of the llong llon g (1) Clearly marked (2) Accessible only to authorized personnel
4...3.2
4...4
Mechanical Protection. The branch circuit(s) and
connections shall be protected against phical damage. 7:10.6.5.3] 7: 10.6.5.3] Circuit Breaker Lock. here a circuit breaker is the disconnecting means, an approved breaker locking device shall be installed. 7:10.6.5.4] 4...
Overcurrent Protection. overcurrent protective device shall be provided in accordance th th N 70. [7:10.6.5.5] 4...6
The seconda powervoice/alarm supply r communications inbuilding el gas detection system emergency seice shall comply with both of the llong (1) Be capable of operating the system under quiescent quiescent load r a minimum of 2 4 hours hours 24hour hour period, be capable of operating (2) At the end of the 24 the system during a re or other emergency condition r a period of 15 minutes at maximum connected load 4..6.2.3.3 The secondary power supply capacity for supervising station cilities and equipm equipment ent shall be capable of supportsupporting operations r a minimum of 24 hours. :10.6..2.5 4..6.2.3.4
Reduction.
(A) The 12hour requirement shall be permitted to be reduced to 5 minutes where the system is monitored by a supervising visi ng station and emergency emergenc y response in accordance accordan ce th Chapter . util ize the minute provision () It shall not be permitted to utilize where .1.2 is utilized.
2023 Edition
71510
INS INS TION TION OF FUEL FUE L GASES DETECT DETECTIO IO N AND WNING EQUIPME EQUIPMENT NT
For systems not addressed by 4.5.6.2.3.1 through 4.5.6.2.4, the seconda' power supply capacity required shall include all power supply loads that are not automatically dconnected upon the transfer to the secondary power supply. 4.5.6.2.4
4.5.6.3 Secondary Power Operation. Operation on seconda' power shall not aect the required perrmance of a fuel gas detection stem. 4.5.7*
Continuity of Power Supplies.
Batteries shall be insulated against groundfaults. [7:10.6.10.2.3
4.5.9.2.3
Batteries shall be insulated to prevent short circuits between multiple cells. :10.6.10.2.4
4.5.9.2.4
Batteies shall be protected om physical damage. :10.6.10.2.5
4.5.9.2.5
Battery racks shall be protected against corrosion.
4.5.9.2.6
4.5.7.1
The seconda' por supply shall automatically provide power to the protected premises system within 10 seconds whenever the primy power supply voltage is inscient rr required re quired system operatio operation. n. [7 [7 l 0.6.6 0.6.6.. l
[7:10.6.10.2.6 If not located in or adjacent to the el gas detection control unit, the batteries and their charger location shall be permanently identied at the control unit.
The seconda' power supply shall automatically provide power to the supeising station cility and equipment \thin 60 second� whenever the primary power supply voltage is insuc insu cient ient for required system operation. 7:1 7:10.6. 0.6.6.2 6.2
4.5.9.3
4.5.7.2
Required signals shall not be lost, interrupted, or delayed by more than 10 seconds as a result of e primary power ilure ilure.. (7:10. (7:10.6.6 6.6.3 .3
4.5.9.2.7
Battery arging.
4.5.9.3.1 Battery chging equipment shall be provided to keep the battery lly charged under all conditions of normal operation.
4.5.7.3
4.5.9.3.2
4.5.7.3.1 Storage batteries dedicated to the el gas detection system or an ESS arranged in accordance wi the provisions of NF 111 shall be permitted to supplement the seconda'
4.5.9.3.3
po por r supply to ensure required operation operation during the transfer period. 4.5.7.3.2 er ere e ESS is employed emplo yed in 4.5..3.1, a posi pos ive means disconnecting the input and output output of the ESS system while maintaining continuity of power supply to the load shall be provided. 7:1 7:10.6. 0.6.6.3.2 6.3.2 4.5.8
Power Supply for Remotely Located Conol Equipment.
Addit ional power supplies shall be comprised of a Additional primy and seconda' power supply that meet the same requirements as those required r system operation with 4.5.1 through 4.5. and 4.13.16. 4.5.8.1 *
4.5.8.2 The location of remotely located power supplies shall be identied at the master control unit. [7:10.6.8.2
The master control unit display shall be permitted to satis sati s the requirement of 4.5 4.5.8. .8.2. 2. [7:10.6 10.6..8.3 ] 4.5.8.4 The location of remotely located por supplies shall be identied on the record dra\ dra\ings. ings. [7:10.6.8.4) 4.5.8.3
4.5.9
Storage Batteries.
4.5.9.1
Marking.
4.5.9.1.1 Batteries shall be mar ma rd with wit h the month d year ye ar of manufacture using using the month/year rmat. : :10.6.10.1.1] 10.6.10.1.1] 4.5.9.1.2 Were the battery is not mark marked ed with the month/ year by e man acturer, acturer, the installer shall obtain the datecode and mark the batte with the month/year of batte' manucture. (7:10.6.10.1.2 4.5.9.2
Arrangement.
Battery chging equipment shall be provided to recharge batteries thin 48 hours after lly charged batteries have been subject to a single discharge cycle as speied in 4.5.6.2. (7:10.6.10.3.2 The batte' cha·ging equipment operation shall not dage the battery. 7:10.6.0.3.3 Batteries shall be charged by listed mes. [7:10.6.10.3.4
4.5.9.3.4*
Provisions r repair or or replacement of iled battery charger equipment shall be maintained at super sup ersing sing stations and used to t o restore operation prio to depletion of onehalf onehalf of the battery capacity. [7:10.6.10.3.5] 4.5.9.3.5
Overcurrent otection. Overcurrent deces shall be provided to protect the batteries om excessive load current. :10.6.10.4J 4.5.9.4
4.5.9.5 Metering. The batte' charging equipment shall include integral meters or readily accessible terminals so t portable meters can be used to determine battery voltage and charging current. (7:10.6.10.5] 4.5.9.6
Monitoring Inteity ofBattery ofBattery Charging Equjpment.
Means shall be provided to detect the failure of a batte charger charger.. 7:1 7:10.6.10 0.6.10.6. .6.l
4.5.9.6.1
4.5.9.6.2 Failure of the battery charger shall result in a trouble signal in accord accordance ance \th \th Secti Section on 4.9. 4.9. 7:10.6.10.6.2] 7:10.6.10.6.2 ] 4.5.10
Engine-Driven Generators.
4.5.10.1 Application a Instllation. The application d installation of enginedriven generators shall be as specied in 4.5.10.2 through 4.5.10.. [7:10.6.11.1] 4.5.10.2
Primary Power Supply.
4.5.10.2.1 Enginedriven generators arranged as the primary supply shall be designed in an approved manner. 7: 7 :10 10.6 .6.. l l.2 l.2.. l ]
4.5.9.2.1
Storage batteries shall comply c omply1 wi the requiremen requirements ts of ticle 480 of NF PA 70. (7:10.6.10.2. (7:10.6.10.2.1 ] the Storage batteries shall be located so that the el gas detection equipment, including overcurrent devices, is not adversely a ected by battery gases. 4.5.9.2.2
4.5.10.2.2 Enginedriven generators arranged as the primary supply shall be installed in approved maer. [7:10.6.11.2.2]
Edition
FUNDAMEN O F FUEL GAS DET DETECT ECTION ION �YSTEMS FU NDAMENS OF
4.5.0.3 Secondry Power Supplies. 4.5.0.3.l Enginedriven generatos used to provide secon-
dary power r a protected fuel gas detection system shall comply with the requiremen requiremen r a Type 10 Class 4 Level 1 System in Chapter Chapter 4 of NFP NFP l l O. 4.5.0.3.2 Itallation of enginedriven generators used to provide secondary power r a el gas detection system shall be in accordance with ticle 00 of NFPA 70. 4.5.0.4 Performance, Operation, Testing, and Mntenance.
The Th e requirement r perrmance, operation, testing, and maint enance maintenan ce of enginedriven enginedriven generatos generatos shall conr con rm m to the applicable applic able provision provision so soff NFP NFP 110. 7 7:10 :10.6.11 .6.11.4 .4 4.5.0.5 Capaty. The unit shall be of a capacity that is s-
cient to operate the system unde the maximum normal load conditions in addition to all other demands placed upon the unit. [7:10.6.11.5 4.5.0.6 Fuel. Unless otherwise required or permitted in
4.5.10.6.l d 4.5.10.6., el shall be available in storage scient r 6 months of testing plus the capacity specied ed in 4.5. 4. 5.6. 6. 7 7:10 :10.6.l .6.l l .6] 4.5.0.6. l I a reliable soce of supply is available at any time on a hour notice, it shall be permitted to have el in storage
71-11
shall be distinctive from alarm signals except as permitted in 4.6.3. 4.6 .3. 7: 10.10.6 4.6.6 here a el g detection stem is combined with either a re alarm system or an intrusion detection system trouble signals om each system shall be permitted to use a common audible signal. 4.7 Alarm Signals. 4.. Fuel gas alarm alar m signa shall comply co mply with 5.8. 5.8.6.5. 6.5. 4.7 alarm signal at has been deactiv deactivated ated at the protec-
ted premi premises ses shall shall comply with with 4...1 4...1 and 4. 4.. .2. 2.. . 7:1 7:10.l 0.l l .8 4..2. .2.ll The audible an d visible alarm signal signal at the contro controll unit only shall automatically reactivate every 4 hours or less until alm signal conditions are restored to normal. [7:10.1 [7:10.11.8 1.8.1 .1 ] 4. 7 7 Th The e audible audible and visible alarm signa signall shall operate until
it is manually silenced or acknowledged. 7:10.11.8. 7:10.11.8. 4. .3 Fuel Ga larm Notcaon Applince Deactivaon. 4. .3.l * Wen an occupt notication alarm signal deactaa-
tion means isis actuated, actuated , both audible and visual notication noti cation appliances shall be simultaneously deactivated. [7:10.1. 4..3.2 The fuel gas alarm notication deactivation means
scient r 1 hours of operation at ll load. [7:10.6.11.6.] [7: 10.6.11.6.] 4.5.0.6.2 Fuel systems using natural or mantured gas supplied through utility mains shall not be required to ha alternate el storage tan unless located in Seismic Risk Zone 3 or greater as dened in ASCE/SEI , Minimum Dgn Loads
shall be keyoperated or locatedprotection within a locked or ranged to provide equivalent againstcabinet, unauthorized use.
and Assoated Ctteea a fo Building and and Other Stctus. Stctus.
4. .3.4 Subsequent activation of addressable alarm initiating
4.5.0. Battery and Chrger.
devices of a di di erent type in the same room or addressable alarm init i nitia iang ng devices in a di erent room roo m on signaling line circuits shall cause the notication appliances to reactate. ate. [7:10.1.5.]
4.5.0. . A separate storage batte and separate automat automatic ic
charger shall be provided pro vided r starting the t he enginedriven enginedriven generagenerator and shall not be used for any other purpose. [7:10.6.11..1 [7: 10.6.11..1 J
4. .3.3 The means shalJ comply th the requirements of
4.1.1. 7:10.12.4]
4..3.5 4. .3.5 A e ell g g alarm notication deactivation means that
of NFP NFP l l O. 7:10. 7:10.6.11 6.11. ..] .]
remains in deactivation position when ere is no alm condition shall operate an audible trouble notication appliance until the means is restored to normal.
4.6 Distinctive Signls.
4..3.6* Resetting of ala signals shall comply with 5.8.2.2.
4.6.l Fuel gas alarm signals and el gas detection system
7:10.11.6
supevisory and trouble signals shall be distinctively and descriptively annuniated.
4.8 Supervisory Signals.
4.5.0..2 The battery shall sha ll be sized in accor a ccordanc dance e th 5.6.4
4.6.2 Audible alm notication cation appliances r a el g25
5.8 6.1 6.4 6.7 7
51 54 57 60 64 67 70 73 76 76 + h*
m
51 51 51 51 51 51 51
51 51 51 51 51 51 51 54
60 64
in.
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
76 76 76 76 76 76 76 76 76 76 76 76 76 76 76
3 3 3 3 3 3 3\ 3%
76 76 76 76 76 76
67 70 79 73 76 83 3 3! 79 7 .3 86 3 83 7.6 3� 89 3, 3� + h* 3 + h* >7.6 3Y, + h* 83 + h* 89 + h* *For each foo ofhorizonal viewng ditance greaer an 5 f 6 m), add in (3 mm) to he character or symbol heigh [72:Table 18.9.4.
7
2023
iin
715
INS INS T TII ON OF FUEL F UEL GAS GASES ES DE DETE TECT CTIO IO N AND WNIN WNING G EQUIPMENT
apter 7 O-Preises Signal Transission
7.4 Operation and Record Keeping.
7. Application.
7.4. The operation, stang, and recordkeeping r a supervising station shall be in accordce with NFPA 72.
7. The perrmance installation, and operation of el gas detection systems at a continuously attended supeising station or a communications center and between the protected premises d the receivin station shall comply th the requirements of this chapter.
7.4.2 The operation operat ion,, stang, d d recordkeeping recordkeep ing r a communications center shall be in accordance with NF
7..2* Communi Communication cation om the fue fuell gas detection system equipment equi pment to a receiving location other othe r than as as required by shall be both of the following:
(l) )
Perm Pe rmit itte ted d Not required to comply with the requirements of this chapter
7.. The requirements of Chapters , 5, and shall also apply unless they the y are in conlict th this chapte 7.2 General. Connections to supervising stations or communications centers shall be in accordance with this chapter.
Chapter 8 Inspection, Testing, nd n d Maintenance 8. Applicaon. This chapter covers the requiremen5 r the inspection, testing, and maintenance of el gas alms, detectors, systems, and teir components. 8.. More stringent inspection, testing, or maintenance procedes shall be permitted. 8.2 Inspection testing and maintenance programs shall encomp5 enc omp5ss all of the llon ng: g: ) )
7.2. Signals. 7.2.. Alrm Signl Priority and Disposition. A el gas alarm signal shall take precedence over supervisory or trouble
)
omplia nce with the requirements ompliance requirement s of ts chapter cha pter Conrmity th the equipme eq uipment nt manucers published instctions Verication Veric ation of operation of tle el gas alarms, detectors, syst sy stems, ems, and their components
signals. 7.2.. The actuao on n of a el g detector or system shall be distinctively indicated as a el gas alarm signal.
8. The use of alteative test methods or testing devices shall be permitted, provided such methods or devices are equivalent in eectiveness and safety and meet the intent of the requirements of is chapter.
7.2..2* Servici Servicing ng of a stem stem in alarm that tha t cannot be eset shall comply t th h both of the llowing:
.2 General.
) )
Be in acco1dance with Chapter Occur thin hours of the uel gas alarm signal
7.2..2 Fuel Gs Detection System Trouble Signal Disposion. 7.2..2. Upon receipt of a el gas detection system trouble signal, the responsible party(ies) shall be notied. 7.2..2.2 Servicing of a system system in trouble shall s hall comply com ply th th both of the llowing:
(l) )
Be in accordance th Chapter Occur within hos of the trouble indication
7.2.2* Supervsing Stion. Upon receipt of a el gas alarm signal, supervising station personnel shall perrm the llowing actions in the order listed:
(l) )
Immediately retransmit indication of the el gas alarm signal to the communications center Contact the responsible party(ies) in accordance with the notication plan
7.2.* Emergency Response Agency (E). e1e a el gas alarm signal is transmitted directly to a communications center, communications communicati ons center personnel perso nnel shall perform the llon ng g actions in the order listed:
( l) )
Follow standard operating procedures Contact the responsible party(ies) in accordance with the
notication plan 7. Prearranged Testing. ere the signal results om a prearranged test, the action required by and shall not be required.
8.2. Responsibilities. .2.. The property propert y or building or system system owner or the owner's designated representative shall be responsible r inspection, testing, and maintenance of the system d r alteratio or additions to this system. [72:] 8.2..2 h here ere the property owner is not the occupant, the property owner shall be permitted to delegate the authority and responsibility r inspect inspecting, ing, testing, and maintaining the el gas detection stems to the occupant, management rm
or managing individual individu alor through speci cconact. specic provisions in the lease, provisions le ase, written use agreement, management 8.2.. Inspection, testing, or mntenanc ntenance e shall be permitted to be done by the building or system owner or a person or organization other than the building or system owner if conducted under unde r a written written contract. [72:] 82..4 Where the t he building or system system owner has delegated any responsibilities r inspecting, testing, or maintenance, a copy of the itten delegation required by shall be provided (72 2 l to the H upon request. (7 82..5* Servce Personnel Qualifcations and Experience. Service personnel shall be qualied and experienced in accordance with the requirements of [726 .2.2* Notifcation. .2.2. Bere proceeding with any testing, all persons and cilities receivin alarm, supeisory, or trouble signals and all building occupants shall be notied of the testing to prevent unnecessy unnecess y response. 72:]
2023 ditio dition n
INSPEION, TESTING AND MAJNTENANCE
222 22 2 Th Thee ow owner ner or the owner's owner's designated representa representative tive and seice personnel shall coodinate system testing to prevent interruption of critical building systems or equipment. [72 14..4.3 [72 2 System Documentation Pri Prio o to system system maintenance or testing, e record of completion d e inrmation regarding the system and system alterations, including specications, wiring diagrams, and loor plans, shall be provided by the owner or a designated representative to the service personnel upon request. 2* Test Plan. 2 A test plan shall be developed to 2 to clearly establish the scope of the testing for the re alarm or signaling system. [7214..10.1] 22 The test plan and results results shall b e documented th the testin tes ting g recor records. ds. [72 14. .1 0. ] Ispection * Unless otherse permitted by 8.3. 8.3 .,, visual visual inspectio inspectio shall be performed in accordance with the schedules in Table 8.3.1 or more often i req requir uired ed by the A [721 [7214. 4. 3. 1] 2 Devi Devices ces or o r equipment lat is inaccessible r safety safety considerations (e.g., continuous process operations, energized elec·ical equipment, radiation, and excessive height) shall be permitted to be inspected during scheduled shutdowns if approve appr oved d by the A AJ. J. [72 [ 721 14. 4.3. 3. Extended inteals shall not exceed 18 mons. [72 14.3.3] [72 Initial and reacceptc reacceptcee inspections shall be made to ensuree complia ensur compliance nce t th h approved desi document and to ensure installaon in accordance with this standard and other required installation standards. [72 14.3.4] Periodic visual inspections in accordance with Table 8.3.1 shall be made to assure that there are no changes that aectt equipment perfor aec performanc mance. e. [72 [ 721 14. 4.3. 3.5] 5] Testing Iitial Acceptance Testing All new systems shall be inspected and tested in acc acc dan dance ce wit with h the requirement requirementss of of Chap Chapter ter 8. [72 [7214 14.4. .4. 1 . 1 ] 2 2 The AJ AJ shall shall be notied not ied prior to the initial accepttest st.. [72 [72 14. 4.1 .] ance te 2* Reacceptance Test Testing ing 2 en a 2 an n initiating initiating dev device ice notication appliance or control relay is added, it shall be f f ction ctionally ally tes tested ted.. [7214.4..1 22 en an 22 an ang ang device, device, noticao noticaon n appliance, appliance , or control relay deleted, another another devic devicee , appliance, or control control relay on the circuit shall be operated. [7214.4..] 2 hen hen modications or repairs repa irs to conol con hardware are made, the control equipment shallolbeequipment tested in accor ac corda danc ncee th Tab Table le 8.4.3, 8.4.3 , items items ( 1 ) and ( 4) . [72 [7214.4 14.4..3 ..3
715
2 2 When changes are made made to sitespecic sow sowe e,, the following shall apply: ( 1 ) All nctions known known to be b e aected ected by the change, or identied by a means that indicates changes, shall be tested end to end om the aected sensor(s) to nal action(s). (See 8.2.4.)
()
(3)
In addition, 10 perc percent ent of initiating device devicess that are not directly aected by the change, up to a maximum of 50 devices, also shall be both of the llowing: (a) Tested (b) Veried r correct system operation A revised record of completion compl etion in accodance th 4. 14 14.. l . 4 shall be prepared prepared to relect relect these chan changes. ges.
2* Changes to the system executive soare shall requie at least a 10 percen pe rcentt functional functional test of the system, including a test of at least one device on each input and output circuit to veri critical system nctio such as notication appliances applia nces control cont rol nc nco ons, ns, and opremises reporting. repor ting. * Test Meods. Fuel gas detection systems and associated equipment shall be tested according to Table 8.4 8 .4.3 .3.. * Testing Frequency Unless otheise permitted by other sections of this standard, testing shall be perrmed in accordance schedul es Tablee 8.4. 8. 4.3, 3, or more oen if required by with thee AH th Ae H. schedules [72 14 14.4 .4.4 .4in Tabl * Devi Devices ces or equipment that are inaccessible r safet safety y considerations shall be permitted to be tested during scheduled shutdo s hutdow w if approved approve d by the AH AH.. 2 Extended interv intervals als shall shall not exceed 18 months. If automa automatic tic testing is performed at least weely by a remotely monitored el gas detection conol unit specically listed r the application, both of e llo llon ng g shall apply: ( 1 ) The manual testing equency shall be permitted to be extended to annually. () Table 8.4.3 shall apply. Functional Test Test of Fuel Ga Detectors Fuel g detector tests shall be perrmed at initial acceptance and annually by the introduction of el gas into the sensing chamber or element. 2 elecon 2 eleconic ic check (e.g (e .g.,., magnets, alog alog values, etc etc.).) shall not be b e su sufcient fcient to comply th is requirement. The functional test shall be per perrmed rmed in accordance with e manucturer's published insuctions. * The result of each fuel fuel gas detector test shall be conrmed through indication at the detector and the control unit. l lll tests and resu results lts shall be recorded. recorded. Maintenance. Fuel gas detection system equip equipment ment shall be mainmaintained in accordance with the manucer's publ hed hed instructions.
2023 ditio dition n
715
INS INS TION TION OF FUEL FUE L GASES DETECT DETECTIO IO N AND WNING EQUIPME EQUIPMENT NT
Tle 8.3.1 8.3 .1 V Inspection Fre Frequencies quencies
Component
1.
l equipment
Inial Acceptance x
Periodic Frequency
Annual
Method
Ensure there are no changes that aect equipment perrmance. Inspect rr building modications, modications,
Reference
8. 3 . 4
occupancy changes, changes in environmental conditions, device location, physical obstructions, device 0·ientation, physical damage, and degree of cleanliness. 2.
Control equipment: ( 1 ) Fuel gas gas detection detection systems systems monitored r alarm, supervisory, and trouble signals (a) Fuses (b) Interced equipment (c) Lamps and LEDs (d) Prima (main) power supply ( e) Trouble signals (2) Fuel gas detection systems unmonitored r alarm, supeiso, and trouble signals (a) Fuses (b) Interced equipment (c) Lamps and LEDs (d) Prima (main) por supply ( Trbl inl
3.
Reserved
4.
Emergency voice/ala voice/alarm rm mmnitin quip quipmnt mnt
5.
Reseed
6.
Reserved
7.
Reserved
8.
Batteries ( 1 ) Valv Valve-regulated e-regulated lead-acid lead-acid () batteries (a) General
(b) Marking
Veri a system normal condition.
x x x x x
nual Annual Annual Annual Annual Veri a system normal condition.
x x x x x
Weekly Weekly Weekly Weekly 'kl
x
Semiannual
Veri location and condition.
4.5.9 x
N/A
N/A
Semiannual
Ensure month and year of manucture is marked i the month/year rmat on each battery cell/unit. Veri tightness of battery connections. Inspect terminals r corrosion, excessive containerIcover distortion, cracks in cell/unit or leaage of electrolyte. Replace any battery batt ery cell/unit f coosion, distortion, or leaage is oeed. Veri marking of the month/year of manufacture on each battery cell/ unit. Replace y cell/unit if alarm equipment manufacturers replacement date has been exdd.
(continue)
2023 dition
INSPEION, TESTING AND MAJNTENANCE
Tle 8.3.1
715-5
Component (2) Primary (d cell) other th
Initial Acceptance x
Periodic Frequency
Semiannual
those used in low"power radio (wireless) systems in accordance with Chapter 5
Method
Reference
Veri mking of the month/year of mnucte. Replace if alm equipment/batte manucturer's replacement date has been exceeded. Replacement date not to exceed 12 months. Veri tightness of connections. Inspect r corrosion or leakage. Replace any battery cell/unit if corrosion corrosion or lekage is obseed.
9.
Remote nnunciators
x
Semnnual nnual
Vri lotion and ondition.
10.
Notication appliance circuit power extenders
x
Annul
Veri proper se ratings, any any.. Veri that lamps and LEDs indicate normal operating status of the equipment.
Section 4.5
11.
Remote power supplies
x
Semnnual nnual
Veri proper se ratings, if any. Veri that lamps and LEDs indicate normal operating status of th quipmnt.
Section 4.5
12.
Transient suppressors
x
Semiannual
Veri location and condition.
1 3.
Reserved
14.
Fibepti ae onnetions
x
Anul
Veri location and condition.
15.
Initiating devices
Veri location and condition (all devices).
( 1 ) Fuel gas air sampling
(a) General
x
(b) Sampling system pipg and sampling sampl ing ports
x
Semiannual
Veri at in-line lters, if ny, are Veri clean. Veri that sampling sampl ing system piping and ttings are installed properly, appear airtight, nd are peanently Conrm that sampling pipeed. is conspicuously identied. Veri that sample ports or points are not obstructed.
(2) Fuel gas duct detectors
(a) General
x
(b)) Sampli (b Sampling ng tube tube
x
(3) Elecomechanical 1·eleasing
x
Semiannual
x
Qurtrl
devices ( 4) Surio signal di
Semnnual nnual
Veri that detector is rigi rigidly dly mounted. Conrm that no peneations in a return air duct exist in the vicinity of the detector. Conrm the detector is installed so as to smple the airstream at the proper location in the duct. Veri Veri proper 01ienta 01ientation. tion. Conrm the sampling tube pro·udes into the duct in accordance with system design.
(continue)
2023 dition
7
INS INS TION TION OF FUEL GASES DETECTION DETECTION AND A ND WRNING WRN ING EQUIPMENT
Tble 83
Component 16.
Fuel gas alarm conol interce and carbon monoxide emergency conol nction interface
17.
Notication appliances
Initial Accepnce
1 ) Audible appliances 2) Audible textual notication appliances 3) Visual appliances (a) General (b) Candela rating
x
Periodic Frequency
Semiannual
Method
Reference
Veri location and condition.
Veri location and condition (all applices). x x
Semiannual Semiannual
x x
Semiannual ri ha th andla raing mking agr with th approd drawing.
6.5.5 6.5.5
Note: N/A N/A � not applicable applicable no minimum requiement established. established. For other than VRLA or primary (dry) cell batteries refr to the battery manufcturer's published instructions instructions or IEEE 450, Recomm commndd ndd Pli Plifor for Maintnan, ing, and Ramt of nld Lad-Aid Lad-Aid Ballrfor BallrforSlal Slaln nay ay A Jj ialions ialions,, fr ved lead-acid batteries; and EEE EEE l 106 ommnd Pratfor Instaation Mainlnan, Tstin Tsting, g, and Raml of Vnt Nk-Cadmium Battrsfor Stationa> Stationa> Aialion fr nickel-cadmium batteries.
82 Resetting. 82 Fuel gas apparatus that require resetting to maintain normal operation shall be restored to normal as promptly as possible ter each test and ala and kept in normal condition for operation.
requirements of 8.6.2.3, if the devices have been tested as part of the normal el gas alm alm testing.
82 If opremises premises monitoring is provided, records of signals, tests and operations recorded at the monitoring center shalll be maintained r not less than 12 months. shal
822 All test signals received shall be recorded to indicate date and time.
82 Upon request, a hard copy record shall be available r examination by tle AH].
8 Records.
82 Paper or eleconic media shall be permitted.
8 Permanent Records. After successl completion of acceptance tests approved by the AHJ, the requirements in 8.6.1.1 and 8.6.1.2 shall apply. [:14.6.1 l
8 Sin Singlegle- and Mu Mutiple-Station tiple-Station Fuel G Aam.
8 A set of reproducible asbuil asbuiltt installation installati on drang ngs, s, operation and maintenance muals, and a written sequence of operation shall be provided to the building owner or the :14.6. 1. l owner's designated representative. f :14.6. 82 The system owner shall be responsible r maintaining these records r the le of the system r examination exam ination by y y A. Paper or eleconic media shall be permitted. [: [ : 14.6.1.3]
8 Sing Single le and multipl multiples estati tation on fuel g alarms and all connected appliances shall be inspected and tested in accordance th the manuers published ins·uctions at least monthly. 82 Alms shall be replaced in the llowing instances: 1) 2)
When either te endoflife signal is activated or tle manucrer' manu crer'ss replacement ate is reached When Whe n te te alarm ils ils to respond to t o operability tests
82 Records shall be retain re tained ed until the next test tes t and and r 1 year thereafter. (:14.6.2.1]
83 y combination combination of smoke/c smoke/carbon arbon monoxide/ monoxide/el el gas alarms shall be replaced when the endofli signal activates or 1 0 yes om the date of manuce manuce,, whichever whichever comes rst, unless oterwise provided by the manufacters published instctions.
822 A record of all inspections, testing, and maintenance shall be provided in accordance th Fire 8.6.2.2. f : 14.6 .2.4 ]
8 \here batteries are used as a source of energy r alarms, the batteries shall be replaced i acco1ance with the alarm equipment manu manucrer crer's 's published insucti insuctions. ons.
The system shall be shall by a placard sticker or 823 otherr means othe to indicate theidentied next regularly scheduled schedule d inspection period pe riod in acco1ance th Figure 8.6.2.2.
8* The occupant of a dlling unit shall be deemed qualied to perrm inspection, testing, and maintenance on singlean multiplestation el gas alarms and all connected appliances protecting that dwelling unit when provided with the mucturer's published insuctions.
82 Maintenan Maintenance, ce, Inspection, Inspection, and and Testing Testing Records.
82 The existing means mean s of indicating th the e next regularly
scheduled inspection period shall be permitted, instead of the
n
INSPEION, ON, TESTING AND MAJNTE MAJNTENANCE NANCE INSPEI
7157
Tale 84 84.3 .3 Tes Testn tn
Component l
ll quipmnt
2.
Control equipment and transponder
Peodic Frequency
x
x
Annually
(2) Fuss
x x
Annually Annually
x x
Annually Annually
Ful gas detection control unit trouble signals ( I ) Audible and visual visual
x
Annually
2) Disconnect stches
x
Annually
(3 ) Gro Groundund-faul faultt monitoring circuit
x
Annually
( 4) Transmission of signals to o-premises location
x
Annually
( 4) Lamps and LEDs (5) Primary (main) powr supply
Method S Tabl 83.1.
( 1) Func Function tionss
(3) Interced quipment
3.
Initi Acceptance
Veri correct rceipt of alarm, supervisory and troubl signals (inputs) ; operati operation on of ecuation ecuation signals and ailiary functions functions (outputs); circuit suprvision including detction of open circuits and ground fats; fats; and power supply supervision supervision r detection of losss of ac powr and disconnection los disconnect ion of secondary batte s. s. Vri rating and suprviion Veri intgrity of singl or o r mulple circuits providing interce betwen two or more control co ntrol uni u ni. Tst intrfacd eqpmnt connections by oprating or simulating opration of the equipment being suprsed. suprse d. Vri signals rquird to b transmittd at the control uni Illuminate lamps and LEDs. Disconnect and tst all secondary (standby) powr under maimum load including all alarm appliancs rquiring simultanous opration. opratio n. Reconnect all secondary secon dary (standby) (stand by) power at end of test Test redundant power supplies separately.
Verify operation of control unit ·ouble signals. Veri ring-back are r systems using a troubl-silencing switch that requires resetting. If control unit has disconnect or isolating switches vri perrmanc of intended unction of ach switch Veri recipt of trouble signal when a suprvisd funcon is disconnectd If th th systm has a ground gro und dtection dte ction fatur fatur vri th occurrnc of ground-fault ground-fa ult inca caon on whnever any installaon install aon conductor co nductor is grounded. Actuate Actu ate an initiang device and an d veri veri receipt of alarm signal at the o-premiss location. Create a trouble condition and verify recipt ofa trouble signal at th o-premises location Actuat a supervisory devic and vri rceipt of a supevisory signal at th o-premises locaon Ifa transmission caer i capable of operation underduring a singlor multipl multipl ult condit condition, ion, actit iniating inia ting de\�ce dur ing such fault condition and very ve ry reciptan of an alarm signal and a ·ouble signal at the o-prmises location
4.
Suprvising staon alarm transmitting equipmnt
x
Annually
Test all stem function functionss and features in accorda acc ordanc nc th the quipment mancturer's mancturer's publishd instructions r correct operation in conance �th th applicable sections of Chapter 7. Ecept r DACT DACT actuate initiati ini tiating ng devic and veri rec recip iptt of of the correct initiating dece signal at the supervising station tn 90 seconds Upon compleo compleon n of the tst restor restore e th stem stem to its funconal operating operating condition. If tstjacks tstjacks ar usd, conduct the rst and a nd last tests thou thoutt th us of the tst jack"
5.
Engin-drivn gnrator
x
Monthly
If an an engindriven engindriven generator dedicated to e system is used as a required power source, vefy operation of the genrator in accordance with NF NF 1 1 0 by the buildi building ng own (continues)
2023 dition
7158
INS INS TION TION OF FUEL FUE L GASES DETECT DETECTIO IO N AND WNING EQUIPME EQUIPMENT NT
Tale 8.43
Component
Initial Acceptance
Periodic Frequency
Method
6.
Scondary (standby) powr supply
x
Annually
Discon nct all primary (mai Disconnct (main) n) powr supplis and veri occurrnc of rquired trouble indication r loss of prima power. Measure or vri the systm's standby and alarm current demand and veri the ability of batteries to meet standb and arm requiremnts using manfacturer's data. Operat gneral arm systems a minimum of 5 minutes and emergncy/voice communications systems r a minimum of 15 minutes. Rconnct primary (main) (ma in) power supply supply at nd of tst.
7.
Emergency storage st stm m (ESS)
x
Annually
Ifa n ESS dedicated Ifan dedicated to system is used as a requird power source ve;y by the building owner opration of th UPS system in accordance wi NFPA .
8.
VRLA battery and charger (1) Tmperature tst
x
(2) Charger test<
x
(3) Cell/Unit voltage test
x
( 4) Ohmi Ohmicc tst
x
Remote annunciators
10.
Rsrved
11
Rsrved
Semiannually Semiannu ally With th batt lly charged and connctd the chargr, measure the voltage across the battery with a voltmte: Vefy the voltage is wiin the battery/alarm quipment manucturer's rcommendations I th voltage is outside of e spcied limits, eir adjust the charger to wiin limits or replace the chargr Smiannually Smiannu ally With e battry lly charged and conncted to charger, measure the voltag of each cll/unit cl l/unit a voltmeter. Replac the battery whn any cll/unit cll/u nit measurs a voltage voltage less than 13.2 13 .26 6 volts. Whn th battry i installd stablish a baslin ohmic vlu r N/A ach battry battry cll/ unit u nit or wher availabl use baseline ohmic valus pro provided vided by the battery battery or tst quipment mancturer. mancturer. In eier case record the base line l ine ohmc valu valu on each battery battery cell/ unit. Smiannuall Smian nuallyy With the battry battry fully chargd and connected to e chargr, masure the intrnal ohmic valu of ach battery cll/unit. Rcord the tst date and ohmic valu on ach cll/unit. Replace e battry batt ry whn th ohmic measurment of any cll/ unit de�ates de�ates
3 years
(5)) Replacemen (5 Replacement/Load t/Load tst" tst"
9
Prior to conducng any battery testing, v; by th prson conducng the tst at all systm softwar stord in volat memory is protectd om loss Semiannually Upon initially opening e cabint door door masure and and record the the tmpratur of ach battery cll/unit at the ngativ termin th an inared rmometer. Replace any battery cll/ut if th temprature is greater than 18°F (I0C) above ambient.
x
Annually
from e or e established byor 30% or mor mor r conductanc and 40% more r baseline resistanc impdanc her th battry or tst equipment manuct·r's baselin ohmic valus are used replace the battery when any cll/unit has an internal ohmic vu outside of acceptabl range Replac th battery or conduct a load tst of the battry capacit Load test th battry basd on th manfacturr's spccaons caons r a discharg rat of 3 hours or more mo re by applying applying current indicatd r th slctd hourly discharg rate continuoly until the termin terminal al vol volge decreases e end voltage spcied by the manufacturer. Record the test duration and cculat e battry capacity including adjusent r ambient tmprature. Replace the battry if capacity is less les s than or equal to 80% or at the nt scheduld tst intl if batt capacity is less than 85%. Ve;fy Ve; fy the correct operation and identicati identication on of o f annunciators. annunciators. If pr\ded, veri correct operation of annunciator under a ult condition
12.
Resrvd (continue)
2023 dition
7159
INSPEION, TESTING AND MAJNTENANCE
Tle 8.43
Cnud
Component
13.
Initi Acceptance
Peodic Frequency
Conduc torsmetallic Conductorsm ( 1 ) Stra Strayy voltag voltagee
x
N/A
(2) Ground ults
x
N/A
(3 ) Short-ci Short-circuit rcuit ults ults
x
N/A
( 4) Loop resistance
x
N/A
(5) Circuit integrity
x
N/A
Method
Tst all installation conducrs th a volt/ ohmmeter to vrify that ther are no stray (unwanted) voltages between installation conductors or between installation conductors and ground. Veri the maimum allo"
