KKS General View s

Contents

Page

Introduction

3

Requirements and tasks

4

Type and hierarchy of identification

6

Application of KKS - Process-related identification - Mounting location identification - Topographic location identification

8

Structure and contents of breakdown levels - Breakdown level 0 - Breakdown level 1 - Breakdown level 2 - Breakdown level 3

15

Further KKS applications

19

KKS Keys - Breakdown level 1, system, mounting unit and structure code - Breakdown level 2, equipment unit code - Breakdown level 3, component code

23

2

Identification System for Power Plants Consistent use if a single uniform identification system which covers all applications involved in the planning, construction and operation of power plants is imperative. No other means enables universal communication between the vast number of parties involved in a project and performing hugely diverse tasks at different locations. One such system is the KKS Identification System for Power Plants KKS was developed by a study group founded in 1970 comprising planners, operators, independent experts and licensing authorities. It evolved from the Plant Identification Code (AKZ) and the owner's Component Code (BES). KKS structure and format are patterned after AKZ. Works on KKS has continued since then under the direction of the Technical Committee on the "Engineering Classification Systems" subordinate to the VGB Main Committee on "Thermal Power Plants". The following are currently members of this Technical Committee: BERLINER KRAFT- UND LICHT (BEWAG)-AG Brown, Boveri & Cie. AG Energieversorgung Schwaben AG ESCOM, Republic of South Africa Gesellschaft für Reaktorsicherheit Maschinenfabrik Augsburg-Nürnberg AG Rheinisch-Westfälisches Elektrizitätswerk AG Schnell-Brüter-Kernkraftwerksgesellschaft mbH Siemens AG, Groups E and KWU Steag AG VDEN, The Netherlands Vereinigte Elektrizitätswerke Westfalen AG Vereinigte Kesselwerke AG

KKS was published by the VGB-Verlag in 1978 (first edition) and 1983 (second, revised edition) in the form of a master volume containing application guidelines and keys, and it forms the basis for coding power plant systems and plant items. The response to the second edition has indicated that the KKS is being increasingly used in planning, construction and operation of power plants at home and abroad. Practical experience has shown that subdivision of the descriptive documents into KKS rules and KKS application commentaries is more expedient. For this reason, the third edition (1988) is subdivided as follows: KKS Rules KKS Guidelines KKS Keys KKS Application commentaries Part A Allg. Anwendungs-Erläuterungen Part B Engineering discipline-specific application commentaries B1 Mechanical engineering B2 Civil engineering B3 Electrical and instrumentation and control engineering B4 Instrumentation and control in process systems

3

Requirements and Tasks Today's power plant engineering and modern man/machine communication necessitate a common language for communication between all engineering disciplines such as civil engineering, mechanical engineering, electrical engineering and instrumentation and control. The demand for higher levels of safety and cost-effectiveness place increasingly stringent requirements on planning, construction and operation. Increasing unit power outputs and higher degrees of automation result in a pronounced increase in the overall quantity of data to be handled.

The KKS Identification System for Power Plants fulfils these requirements. It Provides a common language for all fields of application Offers full coverage and ample reserves for advances in engineering and new technologies Can be combined with other coding systems Is compatible with national (DIN) and international (EC), ISO) standards Is now in worldwide use.

A uniform coding system tailored to cater for all associated tasks and applications is consequently imperative for the planning and operation of power plants.

Planning Licensing

Project engineering Quality assurance

Construction

Operation

Statistics

Maintenance Repair of damage

4

The following requirements were considered during the development of KKS: Uniform identification for all types of power plant and any connected processes Sufficient capacity and detail for identification of all systems, components and structures Sufficient capacity for extension to accommodate new technologies

The diverse tasks and approaches of the various disciplines called for the development of a system suitable for coding Process-related systems Instrumentation and control functions Spatial location Mounting locations in electrical hardware packaging systems.

Consistent identification for planning, licensing, construction, operation (control room), maintenance and decommissioning Interdisciplinary applicability to mechanical, electrical, instrumentation and control and civil engineering coupled with identification according to process function, mounting location and topographic location Quality assurance requirements Requirements for the administration and documentation of technical documents Consideration of national and international standards Non-language-based coding to ensure international usability Application in computer processing

Plant design, mechanical engineering

Plant design, civil engineering Plant design, electrical engineering

Plant design, instrumentation and control engineering System planning mechanical engineering

System planning electrical engineering

System planning instrumentation and control engineering Construction planning

Plant detailed design and circuitry, electrical and instrumentation and control engineering

Plant detailed design, mechanical engineering Pipework planning

5

Type and Hierarchy of Identification KKS comprises three different types of code: Process-related identification Process-related identification of systems and items of equipment according to their functions in mechanical, civil, electrical and instrumentation and control engineering

Mounting location identification Identification of mounting locations of electrical and instrumentation and control equipment in mounting units (e.g. in cabinets, panels, consoles) Topographic location identification Identification of topographic locations in structures, floors, rooms and fire areas.

The structure of the code blocks is the same for all three types of identification. The code is subdivided into breakdown levels and denotes progressively smaller entities from left to right. Mounting location and topographic location codes do not include the "component" breakdown level. DIN 40719, Part 2 uses the coding block "plant" for the purpose of process-related identification and the coding block "location" for the purpose of mounting location identification. DIN 40719 does not include the mounting location code in the form used by KKS. If necessary, the individual types of identification (in accordance with the standard) are distinguished by prefix symbols ("=" for plant,"+" for location). The DIN standard designates the code breakdown level as "section". The titles of KKS breakdown levels were established before the designations given in the above DIN standard were stipulated. Renaming was foregone in order to avoid having to make changes to KKS which was already in use at the time the DIN standard appeared. The adjacent diagram shows the content of the various types of identification.

Process-related identification Total plant

System code

Equipment unit code

Component code

Mounting location identification Total plant

Mounting unit cod

Mounting space code

Topographic location identification Total plant

0

Structure code

1

Room code

2 Breakdown levels

6

3

Process-related identification Total plant System code Subdivision of a power Subdivision and numbering plant into of plants, systems, sec- Units tions of plants and subsys- Non-unit-specific plants tems in - Plant extensions - Mechanical engineering - Electrical engineering - Instrumentation and control engineering - Civil engineering

Equipment unit code Subdivision and numbering of - Mechanical equipment units - Electrical and instrumentation and control equipment

Examples Unit Unit Unit Non-unit-specific

Feed pump system Auxiliary power transformer Turbine building Controller cabinet

Temp. measuring circuit Pum unit Rolling door Fan unit

Component code Subdivision and numbering of components (equipment and items) in - Mechanical engineering - Electrical and instrumentation and control engineering Subdiv. and numbering of - Signals - Signal applications Temperature sensor Pump Motor Fan

Mounting location identification Total plant

Mounting unit code

Mounting space code

As for process-related code

Coding of electrical and instrumentation and control consoles, panels, cabinets and bays

Subdivision of mounting spaces (tier, space, coordinates)

Topographic location identification Total plant

Structure code

Room code

As for process-related code

Coding of structures and outdoor systems, numbering of floors

Subdivision and numbering of rooms and fire areas

1

2

0

3

Breakdown levels

7

Application of KKS This type of identification is used for mechanical, civil, electrical and instrumentation and control engineering equipment units and components. Breakdown levels from different engineering disciplines can be combined where necessary. Process-related identification is of prime concern for many applications. It permits, for example, the correlation of room and mounting space codes for electrical and instrumentation and control engineering systems or signals output by analog data signal conditioning equipment. This type of code also forms the basis for grouping instrumentation and control systems to form functional units.

Process-related Identification

Mounting location identification

Topographic location identifiaction

0

1

2

3

Breakdown levels

Examples illustrating process-related identification: Identification of a pump in a process-related system

8

Breakdown level

Example

0

1

2

3

Total plant

System code

Equipment unit code

Component code

Unit A

Spray deluge system

Pump system

Pump

Application of KKS Identification of the drive motor of a rolling door in a structure

Breakdown level

Examples

Identification of a fan motor on a transformer

Breakdown level

Examples

0

1

2

3

Total plant

System code

Equipment unit code

Component code

Unit B

Turbine building

Rolling door

Motor

0

1

2

3

Total plant

System code

Equipment unit code

Component code

Non-unitspecific plant

Start-up transformer

Fan unit

Motor

9

Application of KKS Identification of a local indicator in a process-related system

Breakdown level

Examples

Identification of a manual control pushbutton in a functional group control

1

2

3

Total plant

System code

Equipment unit code

Component code

Unit A

Spray deluge system

Pressure measurement

Indicatorr

Breakdown level

Examples

10

0

0

1

2

3

Total plant

System code

Equipment unit code

Component code

Unit A

Feedwater supply

Group control

Manual OFF command

Application of KKS This type of identification is used for identifying the mounting locations of electrical and instrumentation and control equipment and devices in consoles, panels, cabinets and sections of panels. Breakdown level 3 is not used in this application.

Process-related Identification

Mounting location identification

Topographic location identifiaction

0

1

2

3

Breakdown levels

Examples illustrating mounting location identification: Identification of a medium voltage switchgear cubicle

DIN 40719 provides for a "location" code block which is identical to that used in KKS for mounting locations but which is also used for coding topographic locations such as structures, floors and rooms. The complexity of power plants and the depth of identification which this entails, however, make it necessary for the processrelated and mounting location codes to be combined to indicate topographic locations in an independent room code (described below). In accordance with DIN the mounting location code is denoted by the "full stop" breakdown symbol written between breakdown levels 1 and 2. Information on structural items of hardware packaging systems (consoles, panels, sections of panels, cabinets) is written to the left of the full stop, and the mounting locations (tier, space) of devices and items to the right.

Breakdown level

Examples

0

1

Total plant

Mounting unit code

Unit A

Medium voltage switchgear

2 Mounting space code

11

Application of KKS Identification of the mounting location of a plug-in unit in a low voltage switchgear cabinet

Breakdown level

Examples

Identification of the mounting location of an electronic module in a cabinet

1

Total plant

Mounting unit code

Mounting space code

Unit A

Low voltage switchgear

Tier/space

Breakdown level

Examples

12

0

2

0

1

2

Total plant

Mounting unit code

Mounting space code

Unit A

Cabinet functional complex 4

Tier/space

Application of KKS Instrumentation and control example

Breakdown level

Examples

0

1

2

Total plant

Mounting unit code

Mounting space code

Unit A

Console, section

Coordinates

13

Application of KKS Identification of structures/outdoor area, floors/ coordinates, rooms and fire areas is provided to permit pinpointing of the topographic locations of systems, plant items and equipment. Breakdown level 3 is not used in this application.

Process-related Identification

Mounting location identification

Topographic location identifiaction

0

1

2

3

..Breakdown levels

Example illustrating room identification: Identification of a room in the boiler house

14

Breakdown level

Examples

0

1

2

Total plant

System code

Equipment unit code

Unit A

Boiler house

Room/ fire area

Structure and Contents of Breakdown Levels For reasons of clarity, memorization and uniqueness, the individual breakdown levels are structured alphanumerically with different formats.

Process-related Identification

Alpha characters are reserved for classification purposes, numeric characters for numbering; grouping is possible. No characters may be omitted on any breakdown level.

Mounting location identification

Topographic location identifiaction

0

1

2

The meanings of alpha characters are stipulated in the KKS Key. Mnemonic designations were avoided to facilitate international use. 3

Breakdown levels

Breakdown level Character Designation of character

1

0 A/N

N

AAA

2 NN

G

F0 F1F2F3 FN

A/N

NAAANN

3

AA NNN A A1A2

AN

A3

AANNNA

AA

NN

B1B2

BN

AANN

It may be necessary to identify several units, nonunit-specific plants or plant extensions within one power plant in a manner that clearly denotes them as separate entities. Breakdown level 0 is provided for this purpose. It is subject to agreement between all parties to this project. The use of an alphabetic symbol is recommended since the following character is numeric. This breakdown level may be omitted if the identifier remains unique.

Unit A

Unit B

Unit C

Non-unit-specific plants Y

15

Structure and Contents of Breakdown Levels A/N

NAAANN

AANNNA

AANN

Prefix number: Character F0 is used for numbering similar sections of plants (e.g. identical heat generation systems) in the total plant identified on breakdown level 0. Each prefix number applies only to that system or plant referred to by the following alpha characters and is not an alternative to the numbering entered in FN. A/N

NAAANN

AANNNA

AANN

The alpha characters of this breakdown level subdivide the total plant into main groups, groups and subgroups, the numeric characters subdivide the entity classified by the final alpha character into sections, parallel trains, cabinets, floors, etc. Where assignable, the alpha characters including their interfaces, have been defined in the VGB key. Any unreserved letters in the function key must be supplemented on a project-specific basis. Coding letters and designation of F1 main groups from the Function Key*) A B C D E F G H J K L M N P Q R S T U V W X Y Z *)

16

Grid and distribution systems Power transmission and auxiliary power supply Instrumentation and control equipment Instrumentation and control equipment (for use only when the function codes CM to CT are insufficient for the identification) Conventional fuel supply and residues disposal Handling of nuclear equipment Water supply and disposal Conventional heat generation Nuclear heat generation Reactor auxiliary systems Steam-, water-, gas-cycles Main machine sets Process energy supply for external users (e. g. district heating) Cooling water systems Auxiliary systems Ancillary systems Structures Solar systems Heavy machinery (not main machine sets) Workshop and office equipment

These coding letters are also standardized in DIN 40719, Part 2, Appendix C, Table C 1 (except for D and W).

Format and Contents of Breakdown Levels A/N

NAAANN

AANNNA

AANN

The meaning of the alpha characters (A1A2 of this breakdown level varies the type of identification. In Process-related identification they denote equipment units, instrument/control loops, analog data conditioning Mounting location identification they number coordinates in structural items Topographic location identification they denote rooms, fire areas, structure/room coordinates. The additional alpha character (A3) is used in process-related identification to denote items such as pilot valves, twin thermometers, etc. and in mounting location identification to denote non-standard equipment mounting locations. The numeric characters of this breakdown level number the entities classified in A2 in all types of identification. A/N

NAAANN

AANNNA

AANN

The alpha characters of this breakdown level classify mechanical, electrical and instrumentation and control components. This permits identification of every individual power plant component e.g. pump, fan, motor, valve, amplifier, vessel. In addition, these alpha characters denote signals and their applications. The numeric characters of this breakdown level number the entities classified by the final alpha character and signals and their applications.

17

Format and Contents of Breakdown Levels Main groups and prefix symbols for breakdown levels 2 and 3 The A1- und B1- characters of breakdown level 2 share the letters of the alphabet and special symbols. A distinction is, however, made between main groups and the "prefix" for instrumentation and control signal identification. These A1 coding letters are also standardized in DIN 40719, Part 2, Appendix C, Table C 2.

A/N

Main groups

Prefixes

18

A B C D E F G H J

NAAANN

AANNNA

Equipment units, driven Equipment units, not driven Direct measuring circuits Closed control loops Analog data and binary signal conditioning Indirect measuring circuits Electrical equipment Subassemblies of main and heavy machinery Nuclear assemblies

K M Q -

Mechanical components Mechanical components Instrumentation and control component (non electrical) Electrical components

R S

Rooms (used subject to restriction, see section 4.3.1) Fire areas

X Y Z

Signal origins Signal application Gated signals

AANN

Further KKS Applications KKS as a master coding system and combination with other coding systems The formal/logical structure of KKS makes it suitable for use as basis for coding in computer processing. The identification levels plant/system/ equipment unit/component permit all forms of evaluation, e.g. with regard to mounting location, materials, systems.

KKS or portions of the KKS key can also be combined with other coding systems, such as the Documentation Key (DAS), Type key to permit correlations for specific tasks, Material Key for damage statistics.

Additional and special electrical and instrumentation and control engineering applications Identification of connections

Identification of signals

An additional identifier is required in electrical and instrumentation and control engineering for coding electrical connections to devices, socket connectors, terminal blocks, etc. Connections are identified in accordance with DIN 40719, Part 2, using the prefix symbol ":" (colon) in conjunction with the code block "connection". This dedicated code block is used in conjunction with breakdown level 1, 2 or 3 as appropriate to the respective function concerned.

Breakdown level 3 is used to identify signals in lieu of components in order to permit coding of analog and binary signals in instrumentation and control signal conditioning and processing equipment. The coding letters X, Y and Z are used as "prefixes" in character B1 for this purpose. X is used to identify signals (origin), Z to identify combined signals (e.g. gated or calculated) and Y is used to identify signal application (destination). Character B2 is used to identify signal areas and signal application areas and character BN is used for numbering the entities classified by the character B2. This identifier permits unique identification and tracing of all signals in circuitry documents.

19

Further KKS Applications Further KKS Applications

Identification of function

Identification of cables is also patterned after the basic KKS system. Cable identifiers consist of an alpha and a numeric element. The alpha element is that alpha element on breakdown level 1 of the two cable destinations nearer the beginning of the alphabet, and the numeric element numbers the cables. Grouping can be performed to simplify planning, e.g. power cables > 1 kV, ≤ 1 kV, control/instrumentation cables > 60 V, ≤ 60 V.

Process-related identification of plants, plant items and components is based on the respective location in the power plant process, e.g. valve on the feedwater tank. This identifier frequently does not uniquely indicate function or functional task. A "functional group" always comprises a number of items of equipment belonging to various systems with different KKS codes, e.g. feedwater pump system, piping system, tank, oil supply, cooling water. In order to correlate the equipment units and items of such a "functional group", a "functional group code" can be used for the purposes of sorting and grouping. "Functional group codes" are patterned after KKS. The alpha element of the dominant identifier is selected as the "functional group code". This application does, however, require the addition of a suitable code (such as a "pseudoprefix" Y to ensure that a software coding unit is concerned thus to rule out the possibility of confusion with process-related codes. Several functional groups can be combined to form a functional complex such as in implemented in the TELEPERM® ME power plant process control system.

Example: cabling of final control element Explanation of characters for example CDB 4027

This form of code is used primarily for identifying documents.

CDB: alpha characters of code nearer the beginning of the alphabet 4: cable grouping, e.g. according to application area 027: cable number Console CWA07 CDB4027 Control interface cabinet CDB04

400 VSwitchgear BFC12

BFC4101

Junction box CDB4164 GA010 UMA08 LAC4001

20

M

Final control element LAC02 AA107

Overview of "Functional Groups" and "Functional Complexes" defined for TELEPERM® ME

21

22

KKS-Keys Summary of the alpha characters stipulated in the VGB volume "Identification System for Power Plants, Application Guidelines and Keys F, A and B" as generally valid for Breakdown level 1 (F1F2) for system identification, mounting unit identification, structure identification Breakdown level 2 (A1A2) for equipment unit identification

Breakdown level 3 (B1B2) for component identification

Process-related Identification

Mounting location identification

Topographic location identifiaction

0

1

2

3

Breakdown levels

23

Breakdown Level 1 0

1 NAAANN

2

3

Power plants

Function key, main groups

Hydro

Steam conventional

1)

A

Grid and distribution systems

B

Power transmission and auxiliary power supply 1)

C

Instrumentation and control equipment 1)

D

Instrumentation and control equipment 1)

E

Conventional fuel supply and residues disposal

F

Handling of nuclear equipment

G

Water supply and disposal

H

Conventional heat generation

J

Nuclear heat generation

K

Reactor auxiliary systems

L

Steam-, water-, gas-cycles

M

Main machine sets

N

Process energy supply for external users (e.g. district heating)

P

Cooling water systems

Q

Auxiliary systems

R S

Ancillary systems

T Structures 2)

U V

W Solar systems X

Heavy machinery (not main machine sets)

Y Z 1) 2)

Workshop and office equipment Identical coding letters are used for system and mounting unit identification Identical coding letters are used for system and structure identification

24

nuclear

Breakdown Level 1

25

Breakdown Level 1 0 Grid and distribution systems AB AC AD AE AF AG AH AJ AK AL AM AN AP AQ AR AS AT AU AV AW AX AY

> (420) kV 380-(420) kV 220-(245) kV 110-(150) kV 60-(72) kV 45-(50) kV 30-(35) kV 20-(25) kV 10-(15) kV 6-(5) kV 1-3 kV < 1 kV Control consoles Measuring and metering equipment Protection equipment Decentralized panels and cabinets Transformer equipment Open-loop control, checkback and auxiliary equipment Marshalling racks Instrument panels Central equipment Communication equipment

Note: Characters F2 and F3 are usually sufficient for identification of distribution energy systems. Character F1 = A is only required for energy distribution systems at the power plant.

26

1 NAAANN

2

3

Breakdown Level 1 Power transmission and auxiliary power supply BA BB BC BD BF BH BJ BL BM BN BP BR BT BU BV BW BX BY

0

1 NAAANN

2

3

Power transmission Medium-voltage distribution boards and transformers, normal system Medium-voltage distribution boards and transformers, general-purpose Medium-voltage emergency distribution boards and transformers, (diesel) emergency power system 1 Low-voltage main distribution boards and transformers, normal system Low-voltage main distribution boards and transformers, general-purpose Low-voltage subdistribution boards and transformers, normal system Low-voltage subdistribution boards and transformers, general-purpose Low-voltage distribution boards and transformers, (diesel) emergency power system 1 Low-voltage distribution boards and transformers, (diesel) emergency power system 2*) Power installations for large variable-speed drives Low-voltage distribution boards (converter), emergency power system 1 Battery systems DC distribution boards, normal system DC distribution boards, emergency power system 1 DC distribution boards, emergency power system 2*) Fluid supply system for control and protection equipment Control and protection equipment

*) Protection against external impact

27

Breakdown Level 1 0

Instrumentation and control equipment *) CA CB CC CD CE CF CG CH CJ CK CL CM CN CP CR CS CT CU CV CW CX CY

Protective interlocks Functional group control, subloop control Binary signal conditioning Drive control interface Annunciation Measurement, recording Closed-loop control (excl. power section) Protection (excl. reactor protection) Unit coordination level Process computer system Reactor protection F2 available for subdivision for system combinations Closed-loop control (power section) Marshalling racks Control rooms Local control stations Communication equipment

*) Identification of non-dedicated hardware packaging systems on priority basis according to main function

28

1 NAAANN

2

3

Breakdown Level 1 Instrumentation and control equipment

0

1 NAAANN

2

3

(For use only if CM-CT are insufficient for system combinations)

29

Breakdown Level 1 Conventional fuel supply and residues disposal EA EB EC ED EE EG EH EK EL EN EP EQ ER ET EU

1 NAAANN

2

Unloading and storage of solid fuels Mechanical treatment of solid fuels (crushing, mixing, drying, etc.) Distribution of solid fuels Chemical treatment of solid fuels incl. residues removal (e.g. desulphurisation plant) Conversion of solid fuels Supply of liquid fuels Chemical treatment of liquid fuels incl. residues removal Supply of gaseous fuels Chemical treatment of gaseous fuels incl. residues removal Supply of other fuels*) Treatment of other fuels*) Conversion of other fuels*) Ignition fuel supply Ash and slag removal system (from excl. removal equipment) Treatment and transport system for combustion, fuel treatment, fuel conversion, flue gas cleaning residues

*) Only to be used if various types of fuel are used in combination

30

0

3

Breakdown Level 1 0 Handling of nuclear equipment FA FB FC FJ FK FX FY

1 NAAANN

2

3

Storage of fuel assemblies*) and other radioactive components Handling of fuel assemblies*) and other reactor core internals Refueling and transport equipment for fuel assemblies*) and other reactor core internals Erection and in-service inspection equipment Decontamination equipment Fluid supply system for control and protection equipment Control and protection equipment

*) Also includes breeder and reflector assemblies

31

Breakdown Level 1 0 Water supply and disposal GA GB GC GD GH GK GM GN GQ GR GT GU

32

1 NAAANN

Raw water supply Treatment system (carbonate hardness removal) incl. cooling tower make-up water treatment system Treatment system (demineralization) Treatment system (others) Distribution systems (not drinking water) Drinking water supply Process drainage system Process drains treatment system Domestic waste water collection and drainage systems Domestic waste water treatment system Water recovery from waste water Rainwater collection and drainage systems incl. treatment system

2

3

Breakdown Level 1 0 Conventional heat generation HA HB HC HD HF HH HJ HL HM HN HP HQ HR HS HT HU HY

1 NAAANN

2

3

Pressure system Support structure, enclosure, steam generator interior Fireside heat transfer surface cleaning equipment Ash and slag removal Bunker, feeder and pulverizing system Main firing system (electric-powered as well) Ignition firing equipment (if separate) Combustion air system (primary air, secondary air) Gas heating system (for closed cycle) Flue gas exhaust (without flue gas treatment) Mechanical dust handling system Electrostatic precipitator Chemical flue gas treatment system incl. residues removal, adsorptive process Chemical flue gas treatment incl. residues removal, catalytic process Chemical flue gas treatment incl. residues removal, absorptive process Flue gas reheating system Control and protection equipment

33

Breakdown Level 1 0 Nuclear heat generation JA JB JD JE JF JG JK JM JN JR JS JT JY

Reactor system Reactor vessel internals*) Reactor control and shutdown equipment Reactor coolant system Moderator system Secondary coolant system (applicable only to three-cycle-plants) Reactor core with appurtenances Containment and internals Residual heat removal systems for reactor coolant system Reactor protection system Reactor control system Reactor operational, protective and status limitation system Control and protection equipment

*) Use JB only if JAC is not sufficient for identification

34

1 NAAANN

2

3

Breakdown Level 1 0 Reactor auxiliary systems KA KB KH KJ KL KP KR KT KU KW

1 NAAANN

2

3

Component cooling systems Coolant treatment Nuclear heat tracing systems (not electric) Nuclear refrigerant systems Heating, ventilation, air-conditioning systems (HVAC) in controlled areas and exclusion areas Radioactive waste processing Nuclear gas supply and disposal*) Nuclear collecting and disposal systems (also venting systems) Nuclear sampling systems Nuclear sealing and flushing fluid supply systems

*) See SE for welding blanket gas systems

35

Breakdown Level 1 0 Steam-, water-, gas-cycles LA LB LC LD LF LK LL LN LP LQ LR LS LY

36

Feedwater system Steam system Condensate system Condensate polishing plant Common installations for steam-, water-, gas-cycles Gas system (closed cycle) Gas cleaning system (only for closed cycle) Water impounding works for hydroelectric power plant Intake system for hydroelectric power plant Tail-race system for hydroelectric power plant Bypass system for hydroelectric power plant Common installations for hydroelectric power plant Control and protection equipment

1 NAAANN

2

3

Breakdown Level 1 0 Main machine sets MA MB ME MF MG MJ MK ML MM MP MR MV MX MY

1 NAAANN

2

3

Steam turbine plant Gas turbine plant Hydraulic turbine plant Pumping turbine plant in pumped-storage power plants Pumped-storage plant Diesel engine plant Generator plant Electro-motive plant (incl. motor generator) Compressor plant Common installations for main machine sets Gas engine plant Lubricant supply system Control fluid supply system Control and protection equipment

37

Breakdown Level 1 Process energy supply for external users (e.g. district heating) NA ND NG NK

38

0

Process steam system (incl. condensate return) Process hot water system Process air system Process gas system

1 NAAANN

2

3

Breakdown Level 1 0 Cooling water systems PA PB PC PD PE PF PG PH PJ PK PM PS PU

1 NAAANN

2

3

Circulating (main cooling) water system Circulating (main cooling) water treatment system Service (secondary cooling) water system for conventional area Service (secondary cooling) water treatment system for conventional area Service (secondary cooling) water system for secured area Service (secondary cooling) water treatment system for secured area Closed cooling water system for conventional area Closed cooling water treatment system for conventional area Closed cooling water system for secured area Closed cooling water treatment system for secured area Closed cooling water system for transformers Cooling tower blowdown system (if separate from PAB) Common equipment for cooling water systems

39

Breakdown Level 1 0 Auxiliary systems QC QE QF QG QH QJ QK QL QM QS QU

2

3

Central chemicals supply General compressed air and carrier air supply General control air supply Central gas supply for closed gas cycles (as working fluid) Auxiliary steam generating system Central gas supply*) Chilled water systems for conventional area Feedwater, steam, condensate cycle of auxiliary steam generating and distribution system Air humidifying system Central oil supply and disposal system Sampling systems for conventional area

*) Except for welding purposes; see SE

40

1 NAAANN

Breakdown Level 1 0 Ancillary systems SA SB SC SD SE SF SG SM SN SP SQ SR ST

1 NAAANN

2

3

Heating, ventilation, air-conditioning (HVAC) systems for conventional area Space heating systems Stationary compressed air supplies Stationary cleaning systems Stationary welding gas systems Heating and fuel gas systems Stationary fire protection systems Cranes, stationary hoists and conveying appliances Elevators Railway installations Road traffic installations Workshop, stores, laboratory equipment and staff amenities inside controlled area Workshop, stores, laboratory equipment and staff amenities outside controlled area

41

Breakdown Level 1 0 Structures UA UB UC UE UF UG UH UJ UK UL UM UN UP UQ UR US UT UU UV UX UY UZ

42

1 NAAANN

2

3

Structures for grid and distribution systems Structures for power transmission and auxiliary power supply Structures for instrumentation and control Structures for conventional fuel supply and residues disposal Structures for the handling of nuclear equipment Structures for water supply and disposal Structures for conventional heat generation Structures for nuclear heat generation Structures for reactor auxiliary systems Structures for steam, water, gas cycles Structures for main machine sets Structures for process energy supply Structures for circulating (cooling) water systems (e.g. circulating water intake) Structures for circulating (cooling) water systems (e.g. circulating water pumps and outfall) Structures for circulating (cooling) water systems (e.g. recirculation cooling) Structures for ancillary systems Structures for auxiliary systems Shaft structures Structures for chemical flue gas treatment incl. residues removal (for HR, HS, HT) Structures for external systems (power plant-specific) General service structures Structures for transport, traffic, fencing, gardens and other purposes

Breakdown Level 1 0 Solar systems WA WB WC WD WE WF WG WH WJ WK WL WM WN WP WQ WR WS WT WV WW WX

1 NAAANN

2

3

for coordinates

Solar heating system Lubricant supply system Sealing fluid supply system Fluid supply system for control and protection equipment

43

Breakdown Level 1 Heavy machinery (not main machine sets) XA XB XE XJ XK XL XP XR XV XX XY

44

Steam turbine plant Gas turbine plant Hydraulic turbine plant Diesel engine plant Generator plant Electro-motive plant (incl. motor generator) Common installations for heavy machinery Gas engine plant Lubricant supply system Control fluid supply system Control and protection equipment

0

1 NAAANN

2

3

Breakdown Level 1 0 Workshop and office equipment

1 NAAANN

2

3

Note: This main group is reserved for power plant operation, e.g. for identification or also for allocation of costs for items necessary for plant operation such as locomotives, mobile cranes.

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Breakdown Level 2 Equipment Unit Code 0

1

2 AANNNA

3

Equipment unit key, main groups

A

Mechanical equipment

B

Mechanical equipment

C

Direct measuring circuits

D

Closed loop control

E

Analog and binary signal conditioning

F

Indirect measuring circuits

G

Electrical equipment

H

Subassemblies of main and heavy machinery

J

Nuclear assemblies

46

Breakdown Level 2: Equipment Unit Code 0

1

Mechanical equipment AA AB AC AE AF AG AH AJ AK AM AN AP AS AT AU AV AW AX AZ

2 AANNNA

3

2 AANNNA

3

Valves, dampers, etc. incl. actuators; also manual Isolating elements, air locks Heat exchangers Turning, driving, lifting and slewing gear (incl. manipulators) Continous conveyor, feeders (escalators) Generator units Heating, cooling units Size reduction equipment Compacting, packaging equipment Mixers, agitators Compressor units, fans, blowers Pump units Adjusting and tensioning equipment*) Cleaning, drying, filtering, separation equipment Converters (non electrical), e.g. servomotor Combustion equipment, e.g. grates Stationary tooling, treatment equipment Test and monitoring equipment Special equipment units

*) Use only if final control element itself forms a structural entity with another equipment unit.

0 Mechanical equipment BB BE BF BG BN BP BQ BR BS BT BU BY BZ

1

Vessels, storage tanks Shafts (for erection and maintenance only) Foundations Boiler heating surfaces Jet pumps, ejectors, injectors Flow restrictors and limiters (incl. rupture discs), orifices (not metering orifices) Hangers, supports, frames, racks, pipe penetrations Pipings, ductwork, chutes Silencers Catalytic converter modules Insulation, sheating Mechanically operated controllers (control units) Special equipment units

47

Breakdown Level 2: Equipment Unit Code 0

1

2 AANNNA

3

1

2 AANNNA

3

Direct measuring circuits*) CD CE CF CG CK CL CM CP CQ CR CS CT CU CV CW CX CY

Density Electrical variables Flow, rate Distance, length, position Time Level Moisture, humidity Pressure Quality variables (analysis, material properties) Radiation variables Velocity, speed, frequency Temperature Combined variables Viscosity Weight, mass Neutron flux (reactor power) Vibration, expansion

*) Data unit A 2 to DIN 19227, Sheet 1, Ed. September 73, Table 1, initial letter

0 Closed loop control circuits*) DD DE DF DG DK DL DM DP DQ DR DS DT DU DV DW DX DY

Density Electrical variables Flow, rate Distance, length, position Time Level Moisture, humidity Pressure Quality, variables (analysis, material properties) Radiation variables Velocity, speed, frequency Temperature Combined variables Viscosity Weight, mass Neutron flux (reactor power) Vibration, expansion

*) Data unit A 2 to DIN 19227, Sheet 1, Ed. September 73, Table 1, initial letter

48

Breakdown Level 2: Equipment Unit Code 0

Analog and binary signal conditioning EA EB EC ED EE EG EH EJ EK EM EN EP EQ ER EU EW EX EY EZ

2 AANNNA

3

1

2 AANNNA

3

Open-loop control Subdivision possible as required Alarm, Annunciation

Process computer

Subdivision possible as required Subdivision possible as required

Reactor protection Combined analog and binary signal conditioning Protection Subdivision possible as required

0 Indirect measuring circuits*) FD FE FF FG FK FL FM FP FQ FR FS FT FU FV FW FX FY

1

Density Electrical variables Flow, rate Distance, length, position Time Level Moisture, humidity Pressure Quality variables (analysis, material properties) Radiation variables Velocity, speed, frequency Temperature Combined variables Viscosity Weight, mass Neutron flux (reactor power) Vibration, expansion

*) Data unit A 2 to DIN 19227, Sheet 1, Ed. September 73, Table 1, initial letter

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Breakdown Level 2: Equipment Unit Code 0

1

Electrical equipment GA GB GC GD GE GF GG GK GM GP GQ GR GS GT GU GW GX GY GZ

Subdivision possible as required Junction boxes/penetrations, general-purpose Bushings (penetrations) cable covers Information display and operator control equipment for process computers and automation systems Junction box for light current systems of national telecomunications service Junction box for lighting Power sockets DC generating equipment (batteries) Switchgear equipment (if not identified under process equipment) Transformer equipment Converter equipment Cabinet power supply equipment Actuating equipment (electrical variables) Junction box for light current systems (not of national telecomunication service) Supports, frames, instrument racks

Machine stationary assembly Machine rotating assembly Bearing assembly

*) Only to be used in conjunction with M = Main machines sets and X = Heavy machinery

50

3

Junction boxes/penetrations

Subassembly for main- and heavy machinery*) HA HB HD

2 AANNNA

0

1

2 AANNNA

3

Breakdown Level 2: Equipment Unit Code 0 Nuclear assemblies JA JB JC JD JE JF JG JM JN JS JZ

1

2 AANNNA

3

Absorber assemblies Fuel assemblies*) Breeder assemblies Flow restrictor (assemblies) Burnable absorber assemblies Reflector assemblies Plenum assemblies Moderator assemblies Neutron sources Shielding equipment Special assemblies

*) Also includes block-type, cluster-type and spherical fuel elements

51

Breakdown Level 3 Component Code 0

1

2

3 AANN

Component Key, Main Groups

K

Mechanical components

M

Mechanical components

Q

Instrumentation and control component (non electrical)

-

Electrical components

52

Breakdown Level 3: Component Code 0

1

2

3 AANN

1

2

3 AANN

Mechanical components KA KB KC KE KF KH KJ KK KM KN KP KT KU KV KW KX KZ

Gate valves, globe valves, dampers, cocks etc. Gates, doors Heat exchangers Turning, driving, lifting and slewing gear Continuous conveyors, feeders (escalators) Heaters, coolers Size deduction machines Compacting, packaging machines Mixer, agitators Compressors, blowers, fans Pumps Cleaning machines, driers, separators, filters Converters e.g. servo-mechanismus Burner, grates Stationary tooling, treatment machines Stationary testing machines Special components

0 Mechanical components MB MF MG MK MM MR MS MT MU

Brakes Foundations Gearboxes Clutches, couplings Engines Piping components Positioners (not electrical) Turbines Transmission gear

53

Breakdown Level 3: Component Code Instrumentation and control components (non electrical) QB QH QN QP QR QS QT QU

0

1

2

3 AANN

1

2

3 AANN

Sensors (only if not structurally integral with QP) Signalling devices Controllers Measuring instruments, testing equipment Instrument piping Condensation chambers Thermowells, pockets (only for protection of sensor) Converters

0 Electrical components -A -B -C -D -E -F -G -H -K -L -M -N -P -Q -R -S -T -U -V -W -X -Y -Z

54

Assemblies and sub-assemblies Transducers from non-electric to electric variables and vice-versa Capacitors Binary elements, delay devices, memory devices Special components Protective devices Generators, power supplies Signalling devices Relays, contactors Inductors Motors Amplifiers, controllers Measuring instruments, testing equipment Power switchgear Resistors Switches, selectors Transformers Modulators, converters from electric to electric variables Tubes, semiconductors Transmission path, waveguides, antennae Terminals, plugs, sockets Electric positioners, e.g. solenoids (not motors) Terminations, balancing equipment, filters, limiters

Servicing of KKS is performed within the VGB Main Committee on "Thermal Power Plants" by the committee on "Engineering Classification Systems". The three subcommittees on "Mechanical and Civil Engineering", "Nuclear Engineering" and "Electrical and Instrumentation and Control Engineering" report to this technical committee. The results of these efforts are published in the KKS Manual Identification System for Power Plants Application Guidelines Function, Equipment Unit and Component Keys and in the KKS Application Commentaries. The information from the keys collated in this document comprises excerpts from the manual. The Manual and the KKS Application Guidelines can be ordered from: VGB-Kraftwerkstechnik GmbH - Verlag techn.-wissenschaftlicher Schriften Klinkestraße 27-31 4300 Essen West Germany

The technical committe on "Engineering Classification Systems" will make the appropriate additions and alterations to the guidelines and keys tc reflect future advances in power plant engineering. Siemens is a member of this committee. Queries may be directed to Siemens AG Systems Development Engineering Data Processing Mozartstrasse 33 b 8520 Erlangen Siemens AG Systems Development Design and Circuitry Ostliche Rheinbriickenstrasse 50 7500 Karlsruhe 21 Siemens AG Systems Engineering and I & C Operational Systems Hammerbacher Straße 12+14 8520 Erlangen Siemens AG Engineering Services Hammerbacher Straße 12+14 8520 Erlangen Please submit suggestions for further development of the system to the members of the committee themselves or to the publishers VGB-Kraftwerkstechnik GmbH.

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