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OSHA requires electrical installations to conform to the NEC as well as their own additional requirements. OSHA says if your installation conforms to the NEC, then it’s deemed to conform to OSHA’s electrical installation requirements 1926.402 – 1926.408 only if it is also in compliance with five requirements named in 1926.401(a).
The first “deemable” requirement is 1926.403(a). It says, “All electrical conductors and equipment shall be approved.”
Compare this to the NEC’s Section 110.2, which says, “All electrical conductors and equipment required or permitted by this Code shall be acceptable only if approved.”
This restating of the NEC requirements characterizes the requirements of 1926.402 through 408 (with five exceptions). The OSHA regulation writers didn’t do this out of laziness; that was not at all the case. Their goal was to harmonize their regulations with the widely accepted standard that is our National Electrical Code. In so doing, they eliminated conflicts that would have been confusing and costly.
Also, the OSHA regulation writers could have simply said, “Make sure your installation conforms with the NEC plus our additional requirements which are….” But in taking the extra trouble to embody specific NEC provisions in the OSHA requirements, they have made line by line compliance a matter of federal law.
Failure to comply necessarily figures into establishing the company’s liability in the event of an injury tort.
What about those additional requirements? These are:
In our next issue, we’ll look at the five additional requirements.