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Thread: jw

  1. #1
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    jw

    i have a question on bonding
    here in boston
    we are building these high rise apartment using romex,and a varitiy of different boxes
    metal and plasic
    plasic ones desighed for wood construction and 1/2 inch sheetrock
    were using 5/8 sheet rock and sometimes double 5/8
    so the single and two gang boxes that are blue and ajustable are great for getting the right dept ajustment
    as long as you can fit them to the dept of the metal stud that is being used
    if not you get into a grey non ajustable romex bang on box for wood constuction for 1/2 inch sheetrock
    the bracket can be flipped over and be made for 1 inch sheetrock
    but it can be modified futher by drilling the bracket and nut/bolting it
    now my question
    does this bolt on the inside of the plastic box that is mounted to a metal stud need to be bonded
    its a metal mounting bracket
    also we use a round plastic blue box in the ceiling with a metal hanger that is supported by metal screws
    the screws are in the box and are not bonded
    the ceiling is chichago still metal ceiling frame
    why arent the screws bonde
    and should they be

  2. #2
    Join Date
    Jun 2012
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    NW Ohio
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    Quote Originally Posted by tower View Post
    i have a question on bonding
    here in boston
    we are building these high rise apartment using romex,and a varitiy of different boxes
    metal and plasic
    plasic ones desighed for wood construction and 1/2 inch sheetrock
    were using 5/8 sheet rock and sometimes double 5/8
    so the single and two gang boxes that are blue and ajustable are great for getting the right dept ajustment
    as long as you can fit them to the dept of the metal stud that is being used
    if not you get into a grey non ajustable romex bang on box for wood constuction for 1/2 inch sheetrock
    the bracket can be flipped over and be made for 1 inch sheetrock
    but it can be modified futher by drilling the bracket and nut/bolting it
    now my question
    does this bolt on the inside of the plastic box that is mounted to a metal stud need to be bonded
    its a metal mounting bracket
    also we use a round plastic blue box in the ceiling with a metal hanger that is supported by metal screws
    the screws are in the box and are not bonded
    the ceiling is chichago still metal ceiling frame
    why arent the screws bonde
    and should they be
    Is this modification listed in the instructions of box installation? If not, you’ve created you own problem. The box may no longer be listed for use. So the question of the bolt may be mute.

  3. #3
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    aside from using NM in a high rise? is this somehow legal in boston?

  4. #4
    Join Date
    Jun 2004
    Location
    Cherry Valley NY, Seattle, WA
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    Quote Originally Posted by rambojoe View Post
    aside from using NM in a high rise? is this somehow legal in boston?
    MA allows nm above drop ceilings, so maybe they are more lax on it's other NEC restrictions?
    Ethan Brush - East West Electric. NY, WA. MA

    "You can't generalize"

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