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Wiring testing

garyolly

I work on bespoke training equipment for the defence industry. Due to a recent contract change, we are once again going through a Demarcation phase. One party has accepted testing responsibilities up to and including the circuit breaker panels that supply my equipment. Another party is now suggesting that all cabling going forward to motors, winches, control circuits etc, need to be tested. I regularly test motor windings and all junction boxes at the equipment but have never felt the need to test the cabling running from the breaker panel to the junction box. I have always assumed (i know, never assume) that should a fault arise with the cables, I would diagnose, fix and record. Should I be testing the control cables or not? Earth testing is completed annually, P.A.T testing for portables is completed annually.  Thanks   

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    Clearly, it is an “appliance”, not the distribution system. BS7671 is reduced to a simple PAT (although too large to move!). This “problem” is entirely caused by a lack of H&S knowledge. The concept that “testing” everything at some interval makes anything safer is fatally flawed. As Mike says is likely to do more harm than good. Inspecting some things can help, but “testing” is unlikely to make much difference. The first stage is to decide exactly what risk you are intending to prevent by this “testing”. 

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    Clearly, it is an “appliance”, not the distribution system. BS7671 is reduced to a simple PAT (although too large to move!). This “problem” is entirely caused by a lack of H&S knowledge. The concept that “testing” everything at some interval makes anything safer is fatally flawed. As Mike says is likely to do more harm than good. Inspecting some things can help, but “testing” is unlikely to make much difference. The first stage is to decide exactly what risk you are intending to prevent by this “testing”. 

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