EMT Strapping Code

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iwire

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Massachusetts
We strap on both sides of a coupling within three (3) feet. The purpose of supports is not necessarily to keep conduit from falling off a wall, I can do that with #9 tie wire. The main reason for supporting conduits like this is to keep it from coming loose and interrupting grounding whether you have and EGC in the conduit or not. A loose coupling can kill or hurt someone in the event of a fault.

I would call this overkill in almost all locations.
 
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