You only have to connect three wires to add a circuit, and each circuit wire is color-coded. I always just use 1/0 for 100 amps now since it is readily available around here and #1 is not. Insufficient capacity But there are some safety precautions, and if you ignore them, you could kill yourself. Opening the main circuit breaker panel box and adding a circuit is actually pretty easy. These wire connections are more likely to loosen over time, which can cause electrical arcs and fires. Inspector report my home and report the main electrical panel ( circuit breaker box ) has been installed up side down. One method was to install a bushing, then run all romex into panel. you cannot have splices in a breaker panel (except for grounding wires). except for ground wires. Wiring enters the back of the panel. or any other technical publication. So you can use a 200 amp rated panel with a 100 amp main breaker for it, as long as the sub feeder is rated for 100 amps also. 2. The only times splices like this can legally occur are for temporary lighting and circuit troubleshooting. I want to know where can fine some information to show the buyer this is true and no problem with electric panel. the specific date and title of the publication as well as the name and address of the promulgating agency are listed in rule 4101:8-44-01 of the Administrative Code. The bathroom includes a shower, toilet, and sink. The splice is illegal and dangerous if not contained inside a junction box. Two wires connected to the same breaker create a double-tapped breaker (and a code violation). Any short-circuit would still trigger, and normal operation is safe. With a couple of exceptions, circuit breakers should have one wire connected to them. I was talking to some friends at work about the wiring in my house. The panel location does violate current code. I mentioned that the Breaker Box is in the downstairs bathroom. A splice is a connection between two or more wires and is one of the worst code violations. It doesn't matter what size panel you use as long as the overcurrent protection is not larger than the panel rating. an industry consensus standard. Correction Talk to your AHJ or another electrician in your area for what is acceptable in your area! Violation. according to license electrician this is not violation of NEC code. That splices are only allowed in a junction box, and since a breaker panel is cannot be used as junction box ? An electrician today told me NO splices are allow in a breaker box at all, that doing so is a code violation ? HOWEVER, this is a code violation because the romex is not secured to the panel. 4101:8-34-01 Electrical. To my surprise, I found this out to be a code violation. There is supposed to be a 30" wide and 36" deep unobstructed space in front of the panel. http://www.sparkyuonline.com Some miscellaneous code violations that people have done. 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