While looking over a recent remodel, I noticed that the EC extended the Service Entrance Conductors from some older gear to a new ATS. He set a homemade junction box/enclosure (30"d x 36"w x 90"h) and run conduit up and over to the new ATS. The enclosure is just sheet metal and the weight of the conduit and wire has warped the top. In order to add support, the EC install a wooden 2x4. Can anyone think of a place in the Code that forbids the use of wood inside electrical boxes/enclosures? (I already have Article 314.40(C) which requires the box to be "constructed so as to be of ample strength and rigidity".
My regional IAEI Chapter provided this information.
Regarding fabrications or field repair of electrical equipment:
1) Regardless of permits or lack of AHJ enforcement, under authority of Federal OSHA 1910.303(A), 1910.399, NFPA 790, & 791, claims adjusters from Bad-Faith insurers can void property-owner policy and deny claims with any evidence of altered electrical equipment, which is missing labeling from an approved Field Evaluation Body (FOB). An expense typically in excess of U$D 3000 and several months to complete; FOB approved fabrications, modifications, & combinations are avoided where off-the-shelf solutions exist.
2) Unidentifiable equipment missing OEM labels or name plates may be suspect of modification or fabrication.
