When examining NEC 358.6 for EMT, it raises an important question: Are straps and supports also required to be listed, and what is the typical approach for AHJ enforcement in residential projects? Understanding this aspect is crucial for ensuring compliance and maintaining safety standards in electrical installations. How do different jurisdictions interpret these requirements, and what steps can be taken to ensure that all mounting hardware is up to code?
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Maybe because EMT straps/supports must be listed per NEC 358.6, though some AHJs in residential work focus more on proper spacing and securement than the listing mark. Check local amendments and use UL-listed hardware to stay compliant anywhere.
NEC 2023 doesn’t require conduit mounting hardware to be listed, but screws/fasteners entering wiring spaces must meet NEC 314.5 specs or be manufacturer-supplied.
Okay, so the NEC wants EMT to be listed for safety. Though it doesn’t say straps or supports have to be listed unless they’re part of a listed setup. A lot of inspectors still prefer UL-listed stuff made for electrical use, not just regular brackets. To keep things smooth, electricians usually go with gear from electrical suppliers that’s rated for EMT. Because inspectors can see things differently, using listed straps made for the job is the safest bet. Plus, it’s always smart to double-check with the inspector at the start of the project.
NEC 2023 does not specifically require conduit mounting hardware (like threaded rods, strut assemblies, or generic support brackets) to be listed.
Instead, the code focuses listing requirements on the raceway materials and fittings themselves.