2-2015 NFPA 70E Changes

NFPA 70E: Standard for Electrical Safety in the Workplace Overview of Major 2015 Changes

The 2015 Has Arrived! •

The NFPA 70E was first published in 1979 at the request of OSHA.

•

The 2015 Edition is the tenth to be published.

•

Each edition is made to bring clarification and a safer work environment.

•

The 2015 edition brings in some major changes.

The 2015 Has Arrived! •

The NFPA 70E was first published in 1979 at the request of OSHA.

•

The 2015 Edition is the tenth to be published.

•

Each edition is made to bring clarification and a safer work environment.

•

The 2015 edition brings in some major changes.

Global Changes 2012 Edition

2015 Edition

Harm

Injury or Damage to Health

Probablility

Likelihood

Work Shoes

Footwear

 Arc Flash Hazard Analysis

Arc Flash Risk Assessment

Shock Hazard Analysis

Shock Risk Assessment

Global Changes These Global Changes provide accuracy and better harmonize with other standards addressing risk and hazards

Definitions Qualified Person. One who has demonstrated skills and knowledge related to the construc- tion and operation of electrical equipment and installations and has received safety training to identify and avoid the hazards involved. Risk. A combination of the likelihood of occurrence of injury or damage to health and the severity of injury or damage to health that results from a hazard.

Definitions Risk Assessment. An overall process that identifies hazards, estimates the potential severity of injury or damage to health, estimates the likelihood of occurrence of injury or damage to health, and determines if protective measures are required. InformationalNote: As used in this standard, arc flash risk assessment and shock risk assessment are types of risk assessments.

 Article 110.1(A) Electrical Safety Program. General. The employer shall implement and document an overall electrical safety program that directs activity appropriate to the risk associated with electrical hazards. The electrical safety program shall be implemented as part of the employer’s overall occupational health and safety management system, when one exists. Informational Note No. 1:  Safety-related work practices such as verification of proper maintenance and installation, alerting techniques, auditing requirements, and training requirements provided in this standard are administrative controls and part of an overall electrical safety program.

 Article 110.1(B) Electrical Safety Program. Maintenance.The electrical safety program shall include elements that consider condition of maintenance of electrical equipment and systems.

 Article 110.2(C)(1) Training Requirements Emergency Response Training Contact Release. Employees exposed to shock hazards shall be trained in methods of safe release of victims from contact with exposed energized electri- cal conductors or circuit parts. Refresher training shall occur annually.

 Article 110.2(C)(2) Tr a ining Requirements

First A id, Emergency Response, and Resus citation (a) Employees responsible for responding to medical emergencies shall be trained in first aid and emer- gency procedures. (b) Employees responsible for responding to medical emergencies shall be trained in cardiopulmonary resuscitation (CPR). Refresher training shall occur annually. (c) Employees responsible for responding to medical emergencies shall be trained in the use of an auto- mated external defibrilator (AED) if an employer’s emergency response plan includes the use of this device. Refresher training shall occur annually. Employers shall verify at least annually that employee training required by this section is current.

 Article 130.2(A)(4) This was added in the 2015 Text: Norm al Operation: Normal operation of electrical equipment shall be permitted where all of the following conditions are satisfied: (1) The equipment is properly installed. (2) The equipment is properly maintained. (3) The equipment doors are closed and secured. (4) All equipment covers are in place and secured. (5) There is no evidence **This is in accordance with manufacturer and industry codes and standards. Physical damage, arcing, deterioration, and overheating are all signs of impending failure.

 Article 130.2(B)(1) Energized Electrical Work Permi ts When Required: When energized work is permitted in accordance with 130.2(A), and energized electrical work permit shall be required under the following conditions: (1) When work is performed within the restricted approach boundary (2) When the employee interacts with the equipment when conductors or circuit parts are not exposed but an increased likelihood of injury from an exposure to an arc flash hazard exists.

 Article 130.2(B)(3) Energized Electrical Work Permit s Exempti ons to Work Permit : An energized work permit shall not be required if a qualified person is provided with and uses appropriate safe work practices and PPE under any of the following conditions: (1) Testing, troubleshooting,and voltage measuring (2) Thermography and visual inspections if the restricted approach boundary is not crossed (3) Access and egress from an area with energized electrical equipment if no electrical work is performed and the restricted approach boundary is not crossed (4) General housekeeping and miscellaneous non-electrical tasks if the restricted approach boundary is not crossed.

 Article 130.4(A) Shock Risk Assessment:  A shock risk assessment shall determine the voltage to which personnel will be exposed, the boundary requirements, and the PPE necessary in order to minimize the possibility of electric shock to personnel.

Shock Protection Boundaries

Prohibited  Approach Boundary

Restricted  Appr oach Boundary

Limited  Approach Boundary

 Ar c Flash Bo un dar y

Exposed Energized Conductor or Circuit Part

Limited Approach Boundary

Limited Space

Restri cted Approach Boundary

Restr icted Space

2015 Boundaries

Table 130.4(D)(a)  Approach Boundaries for Shock Protection for Alternating Current Systems Nominal System Voltage Range, Phase to Phase

Exposed Movable Conductor

Exposed Fixed Circuit Part

Restricted Approach Boundary; Includes Inadvertent Movement Adder

240 V and up to 600 V Parameters: Maximum of 25 kA short-circuit current available; 2 maximum of 0.03 sec (2 cycles) fault clearing time; working distance 455 mm (18 in.)

3 ft.

600-V class motor control centers (MCCs) Parameters: Maximum of 65 kA short-circuit current available; maximum of 0.03 sec (2 cycles) fault clearing time; working distance 455 mm (18 in.)

2

5 ft.

600-V class motor control centers (MCCs) Parameters: Maximum of 42 kA short-circuit current available; maximum of 0.33 sec (20 cycles) fault clearing time; working distance 455 mm (18 in.)

4

14 ft.

 Article 130.5(D) WARNIN G

 Arc Flash and Shock Hazard  Appropriate PPE Required Hazard Risk Category @ 18”

#2

Nominal System Voltage 480V  Arc Flash Boundary 38” Limited Approach Boundary 42” Restricted Approach Boundary 12” Prohibited Approach Boundary 1”

PPE: Reference NFPA 70E-2012 Table 130.7 (C)(16) Equi pment Bus: PAINT ROOM MCC-1 Lock out Device: MDP-1 3B Date: 1/1/14 Reference Document: IEEE Std 1584 through 1584b-2011

 Article 130.7(15)(D)(2) Barricades. Barricades shall be used in conjunction with safety signs where it is necessary to prevent or limit employee access to work areas containing energized conductors or circuit parts. Conductive barricades shall not be used where it might increase the likelihood of exposure to an electrical hazard. Barricades shall be placed no closer than the limited approach boundary given in Table 130.4(D)(a) and Table 130.4(D)(b). Where the arc flash boundary is greater than the limited approach boundary, barricades shall not be placed closer than the arc flash boundary.