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Answer for USA, Canada and countries running a 60 Hertz supply service.The clearance in front of a distribution panel is 3 feet or 1 meter depending in which country you live. Around the distribution panel there is no distance stated. An in wall flush distribution panel has zero clearance.
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Q: What is the minimum gap around electric boxes allowed by code?
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Are junction boxes usually wired in the first floor?

Junction boxes are usually laid out so that the circuit splices are located in the basement and in the attic. Attic junction boxes have to have a vertical clearance of three feet above it to make it legal.


Are Junction boxes used wire exposed portions of the basement?

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What is a 15 amp electrical outlet?

A #14 copper wire rated at 15 amps is the minimum size wire for a 15 amp receptacle.


Do main outside electrical breaker boxes need grout?

Outside breaker distribution panels must be rated for outdoor use and are already weather proof. If this is not the case then a protective covering must be made around the panel to keep the weather elements away from the box. If either of these options are used then the distribution box does not have to be caulked.


The metal junction boxes that we are installing receptacles in have no ground screw just holes in the back for mounting and knockouts How do you properly ground j boxes?

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