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Electrical Safety Standards for electric vehicle service
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Author:  phil.haataja [ Thu Jul 07, 2022 8:03 am ]
Post subject:  Electrical Safety Standards for electric vehicle service
NFPA 70E specifically does not apply to EV's for service and maintenance. What standard does? Where are the safety "rules" found if not in NFPA 70E?
Author:  Jim Phillips (brainfiller) [ Mon Jul 11, 2022 2:24 pm ]
Post subject:  Re: Electrical Safety Standards for electric vehicle service
phil.haataja wrote:
NFPA 70E specifically does not apply to EV's for service and maintenance. What standard does? Where are the safety "rules" found if not in NFPA 70E?


Our partner in the UK can help with this this as they have been working with EV safety there. PM me and I can provide their contact info.
Author:  Terry Becker [ Wed Jul 13, 2022 6:35 am ]
Post subject:  Re: Electrical Safety Standards for electric vehicle service
NFPA 70E can be used for EVs. It is about the work task(s) performed, not the fact that it is an EV. NFPA 70E is based on a Job assigned to a Qualified Person and work task arc flash & shock hazard identification and risk assessment procedure been completed under an employer's Electrical Safety Program. The exceptions noted, most are political. Where applicable all of the industries noted with the exceptions are actually using NFPA 70E or CSA Z462 where it applies to their business.

For EVs what work tasks are completed that are "energized?" Apply NFPA 70E risk assessment procedure, and underneath this process a work task's arc flash risk assessment and shock risk assessment.

Based on the hierarchy of risk control methods the inherent design of an EV eliminates exposure in most cases. Establishing an Electrically Safe Work Condition is applied to the EV, etc.. Another example of how NFPA 70E and CSA Z462 apply to EVs, solar, wind turbines, etc..

The focus is the work task, then the maximum voltage of exposure for electrical hazard identification (e.g. shock hazard or an abnormal arcing fault can be sustained) and determining PPE (e.g. voltage rating) and the work task is performed on "electrical equipment."

Apply the employer's Electrical Safety Program. It is the solution that answers the questions and provides the policies, practices and generic procedural requirements.
Author:  jdsmith [ Mon Aug 22, 2022 6:01 am ]
Post subject:  Re: Electrical Safety Standards for electric vehicle service
phil.haataja wrote:
NFPA 70E specifically does not apply to EV's for service and maintenance. What standard does? Where are the safety "rules" found if not in NFPA 70E?


Are you asking about electrical vehicles, or electric vehicle charging? I am involved with electric vehicle charging and I'm not sure why NFPA 70E wouldn't apply to charging installations.
Author:  stevenal [ Mon Aug 22, 2022 7:31 am ]
Post subject:  Re: Electrical Safety Standards for electric vehicle service
Terry Becker wrote:


For EVs what work tasks are completed that are "energized?"


Cell replacement. Intercell connection replacement. Full battery replacement. I have yet to see a cell terminal that can be de-energized.
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