United Poly Systems, LLC recently became the first manufacturer to achieve NSF International certification to UL Standard 651A for polyethylene electrical conduit pipe, according to a press release.
An online search revealed this answer to that question: “A tube or trough for protecting electric wiring.” To someone untrained in the electrical field, that definition seems correct. But using that ...
United Poly Systems 1” coiled Schedule 40 plastic conduit is among UPS’s first pipes to be certified by NSF International to UL 651A. Photo credit: United Poly Systems, LLC. United Poly Systems 1” ...
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