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Cable ladder bonding

mrf
429eea9f08a4e6aa0aeb5605908220c1-huge-sketch-7.png

Saw this recently on site, there is a bond across every cable ladder joint. I do not believe that this is necessary as this is not an exposed-conductive-part or an extraneous-conductive-part. Am I right? 


mrf
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  • 0
    This is just a length of ladder in a plantroom carrying armoured cables. It is not extraneous, it is not used as a CPC. My thought was that the braiding is superfluous and your responses give me heart that I am not alone.?

    ..and yet almost every specification I see calls for it...



     


    Mine don't - except where the containment system has deliberate fishplate joints for variable angles to be adopted, where the ladder or tray may be discontinuous and where I actually wan to introduce a bond (if the containment is extraneous)





    Glad to hear it. Sadly, almost every specification I see does, and these are specs from big multinational companies.


    Thanks for your input everybody.


    mrf
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  • 0
    This is just a length of ladder in a plantroom carrying armoured cables. It is not extraneous, it is not used as a CPC. My thought was that the braiding is superfluous and your responses give me heart that I am not alone.?

    ..and yet almost every specification I see calls for it...



     


    Mine don't - except where the containment system has deliberate fishplate joints for variable angles to be adopted, where the ladder or tray may be discontinuous and where I actually wan to introduce a bond (if the containment is extraneous)





    Glad to hear it. Sadly, almost every specification I see does, and these are specs from big multinational companies.


    Thanks for your input everybody.


    mrf
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