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bathroom suppl bonding

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  • 25-05-2011 10:10am
    #1
    M cebee
    Closed Accounts Posts: 4,431 ✭✭✭


    hey can someone enlighten me

    bathroom with copper pipework already main bonded elsewhere

    should the supplementary bond be connected to a protective conductor anyway

    if there is no exposed metal -class 1 appliances

    page 167 in rules

    701.544.03


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    #2
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    I was of the belief that once all the pipes in the bathroom are cross bonded, thats all thats needed. Where metal appliances are present, then the pipes would have to be bonded to earth, to be in effect bonded to the appliance casing.


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    #3
    M cebee
    Closed Accounts Posts: 4,431 ✭✭✭M cebee


    if there's class1 appliances and extraneous metalwork
    -you link the metalwork and cpc's or casing of the appliances


    i'm trying to figure where there's only copper(already main bonded) if the supplementary bond needs to be earthed locally


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    #4
    Peter Sweeney
    Registered Users Posts: 44 ✭Peter Sweeney


    The bond whatever metal pipes it connects to should go back to the main panel and then onto the exterior earth rod, just because you see bond wired doesn't mean that they will connect to the main earth rod


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    #5
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    I dont believe it does need it myself, as in the situation where its needed, all pipework once crossbonded in the bathroom will mean all exposed metal will be at equal potential. But if there are any doubts then you could just connect the cpc.


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    #6
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    Peter Sweeney wrote: »
    The bond whatever metal pipes it connects to should go back to the main panel and then onto the exterior earth rod, just because you see bond wired doesn't mean that they will connect to the main earth rod

    The earth rod has little to do with this. Cross bonding of everything in an installation is to do with the installation being neutralized.


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