TriX wrote:
Unless it’s a ground fault breaker, it’s not expensive. Just make ABSOLUTELY sure the main breaker in the panel is off, or better yet, pull the meter or switch off the disconnect if there is one, and be VERY careful working inside the panel as the lugs to the main breaker (or fuses) are still “hot” with the main breaker off. Even then, I like to check the voltage on the busbars to the breakers before working in the box. I’m sure you already know all this, and maybe I sound over-cautious, but the transformer (pole pig) feeding your house can supply huge amounts of power (many hundreds of amps at 240 volts) into a fault before its breaker trips, and a slip with a screwdriver or a hand can be catastrophic. I always hate working in a hot panel if required. It’s not hard to change a breaker, but if you don’t feel comfortable with what you’re doing, don’t do it - call an electrician.
Unless it’s a ground fault breaker, it’s not expen... (
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Your right on regarding the danger of working on a box if you don't know what your doing.