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Wiring trough installation

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S

solarken

NABCEP PVIP
Location
Hudson, OH, USA
Occupation
Solar Design and Installation Professional
This might seem silly to ask, but how do you install the end covers on nema 1 wiring trough, with the screw flange and screws accessible from the outside (concave) or with the screws hidden inside (end flush with the trough material)?
 
tom baker

tom baker

First Chief Moderator & NEC Expert
Staff member
Location
Bremerton, Washington
Occupation
Master Electrician
I put the heads out. I installed a lot of Hoffman NEMA 1 wireway. I used my own fasteners. truss head Phillips or Sq drive machine screws and keps nuts. A keps nut has a built in star washer, use your driver bit on the machine screw.
The nut and just a bit of the machine screw are on the inside in a corner where a wire is not likely to contact.
 
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