Electrical – Do I need to upgrade the branch circuits to CAFCI/GFCI if I move the electrical panel

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I'm moving my main panelboard as part of a service upgrade. The panelboard is brand new (i.e. I'm not reusing the old board).

Do I need to add CAFCI/GFCI breakers on the old branch circuits (as would be required for new construction/new branch circuits)? For example, there's no GFCI on my washing machine branch circuit, but Code requires this circuit be GFCI protected for new construction. Other examples: there's no AFCI anywhere in the house. I could go on.

The house is located in Seattle, USA, was built in 1927, and contains a mix of knob and tube, NM (original), and NM-B wiring as well as a bit of armored cable here and there. Eventually, we'll completely rewire the house, but the previous homeowner just added outlets wherever he saw a "convenient" place to tap into an existing circuit. That's probably good reason for adding CAFCI/GFCI protection, but I'm concerned I'm going to be fighting nuisance trips until I can do a proper re-wiring job.

Answers that cite the relevant Code are appreciated!

Best Answer

Depends if by moving the panel requires replacing any wires.

For example, if you're simply moving the panel up a foot without having to replace wires then no, no GFCI or Arc fault protection required.

On the other hand, any time a wire is replaced it generally is required to be brought up to code. This is common rule for not only electrical but all forms of construction.