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GFCI needed on temporary outdoor panel?

hellojell-o

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Sep 21, 2025
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I'm helping a friend set up a temporary outdoor panel for a small backyard build and should be in place for about 3 months. We've got basic lighting and a few outlets planned, nothing too heavy.

Quick question: is a GFCI breaker or outlet required for this kind of setup? I've seen mixed info online, and I want to make sure we're staying safe and code-compliant. Appreciate any tips or experiences you can share!
 
is a GFCI breaker or outlet required for this kind of setup?
yes, 100%. Don't skip it! because you're working in a less controlled environment with temporary wiring, tools, and potentially water.
a GFCI is a literal lifesaver because it trips in a fraction of a second if it detects a dangerous ground fault. for a small build, you could even just use a few portable GFCI plugs that you plug your extension cords into, but the best practice would be to use a GFCI breaker in the temporary panel itself
 
Check NFPA 70 Article 590. Article 590.6(A) regards the ground fault protection.

But, certainly I advise you to read the rest of the article. The requirements (and time limit) for temporary installations go far beyond sticking in a ground fault device. Study the requirement for device boxes, in-use covers and more.

A common misconception about temporary power is that the standards are weaker than permanent wiring. They are far from weaker- just different. Electricity does not care if it is temporary or permanent. It will do the same amount of work and the presents the same amount of danger.

Also note that if this is a commercial property or project, you also must follow OSHA guidelines.

Be Safe! Someone needs you!
Paul
 
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