When I fish my wires through the 1/2" emt conduit to the 90 degree pull elbow box outlet, the wire coverings are a little shredded. They are not kinked. Should I be concerned about the wire covering shredding? Or should I try it again using a pull elbow box that has opening? How do electricians do it if they weren't using an open cover?
Electrical – Why do wires shred when using a pull elbow
electricalwiring
Related Solutions
NO! Regular couplings, those in the first image, are NOT pull points. Pull points are conduit bodies or boxes, or even those silly little elbows in the second image.
My suggestion would be to install a conduit body at strategic locations. For your installation you really only need one.
Conduit bodies:
There is no height requirement in NEC Article 358.12, "Uses not permitted" so long as the run meets the other requirements. There is also no height requirement for task lighting over a work area. The only "standard" height for work areas I have ever heard of was 30" above a work area. I assume this is to allow you to put things on the work area and provide adequate head clearance. It would be practical to provide some sort of protection from any glass breakage such as a wraparound fixture or lamp protectors.
If you would like to review NEC requirements on fixtures go to Article 410.
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Best Answer
Don't pull my elbow!
Elbows cannot be pulled around as their radius is far tighter than a minimum radius bend. Hence, you have to take the cover off, pull to the elbow enough wire for the rest of the run to form a "loop" there, and then continue the pull from the elbow to the rest of the run.