Quick Hits

Episode 3: Uses Permitted & Uses Not Permitted (400.10 – 400.12)

SLIDE 1 (HOOK / COVER)

⚡ NEC Quick Hit: Permitted & Prohibited Cord Uses (Part 3) ⚡

Pendant drops, flat-screen TV power inlets, and fixed wiring prohibitions—let's review Sections 400.10 and 400.12! 👇

SLIDE 2 (USES PERMITTED - 400.10)

Where Flexible Cords Are Allowed:

• Portable & Pendant Equipment: Permitted for pendants, luminaire wiring, portable luminaires, mobile signs, appliances, elevators, and cranes/hoists.

• Frequent Interchange & Noise: Allowed for connecting utilization equipment to facilitate frequent interchange or to prevent the transmission of noise or vibration.

• TV Power Assemblies: Permitted between an existing receptacle outlet and a listed inlet assembly specifically designed to supply power to a flat-screen TV.

SLIDE 3 (USES NOT PERMITTED - 400.12)

Strict Code Prohibitions:

• Fixed Wiring Substitute: Flexible cords shall not be used as a substitute for the fixed wiring of a structure.

• Holes & Doorways: Prohibited where run through holes in walls, ceilings, floors, doorways, windows, or similar openings.

• Surface & Concealed Runs: Prohibited from being attached to building surfaces or concealed behind walls, floors, ceilings, or dropped/suspended ceilings (except where specifically allowed for air spaces or temporary wiring).

SLIDE 4 (WRAP-UP) 💡 Apprentice Pro-Tip: 

Just because a piece of equipment comes with a cord does not mean you can drop it through a ceiling tile or conceal it behind drywall—400.12 prohibitions always override general appliance usage!

💬 Save this post for your next commercial wiring inspection!

🔗 More code breakdowns and study tools at www.JoshTheSparky.com

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