Question from Chris - Just looking for a quick statement on the Value of using
a Non-NRTL firm for testing and/or certification (Listing).
In my opinion
If you're just building one or two then the answer might be non-NRTL,
depends on cost and time - just get the local
Hi Chris:
OSHA rules apply to employers.
OSHA electrical rules require employers (1) to
use only electrical products that have been
certified by an NRTL, or (2) in the case of
custom products, to test the product in place.
If you sell a non-NRTL-certified custom product
to an employer
Chris -
On the basis of workplace safety, listing by a nonNRTL is
largely useless. On the other hand, if the persons
providing the listing are a competent engineering firm,
using licensed engineers, there may be some credibility to
the listing (for instance, the NEC allows waivers of certain
Hello Again Group,
There are several documents available from OSHA's site. Attached is another pdf
from OSHA dated 1993 to show more history of OSHA requirements/laws...
This letter defines the term approved which is used in several 29CRF
documents and also used in the NEC. Again, OSHA
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