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Junction boxes size

fab.elec
Good morning,


i'm trying to find information about how to calculate junction boxes sizing by uk regulations. Can anyone help, please?


Best regards
Parents
  • 0
    If the question is about physical size, I wonder if the OP was hoping to find the equivalent of the USA NEC regulations, where boxes are marked with a volume and then there are tables and formulas to determine the maximum number of wires etc that may be fitted


    For example...


    (skip to about 4 mins to get to the calculations but note that he shows us the 20.3 cu in markings near the beginning)


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  • 0
    If the question is about physical size, I wonder if the OP was hoping to find the equivalent of the USA NEC regulations, where boxes are marked with a volume and then there are tables and formulas to determine the maximum number of wires etc that may be fitted


    For example...


    (skip to about 4 mins to get to the calculations but note that he shows us the 20.3 cu in markings near the beginning)


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