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How a simple job can go wrong quickly....

Former Community Member
Former Community Member
Not my work before I relate:


Existing 3-ph circuit breaker DB in a shop has a 30 mA 4 pole RCD belatedly fitted in a separate enclosure to provide blanket RCD protection. OK, not ideal.

Electrician asked to install extra 13 A socket-outlet in window during shop hours so padlocks off the circuit's circuit-breaker and proceeds, He lets the circuit neutral and cpc touch when fitting the socket-outlet and out trips the RCD as expected. Resets and shop keeper then announces that the card reader, till, air-con and some lights not working.


All that equipment now duff (technical term!).


For an interesting weekend quiz, what happened?


Without hindsight and the work being done during opening hours, what would you have done differently?


Regards


BOD






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  • 0

    Sparkingchip:

    I also think the electrician spoke to Bod to ask what could have gone wrong, if there had been reversed polarity and he had touched a neutral conductor with 240 volts on it down to earth he would have been telling Bod what had happened, because he would have known about it.




    May be if he had bitten off the insulation; may be not if he had used insulated tools.

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  • 0

    Sparkingchip:

    I also think the electrician spoke to Bod to ask what could have gone wrong, if there had been reversed polarity and he had touched a neutral conductor with 240 volts on it down to earth he would have been telling Bod what had happened, because he would have known about it.




    May be if he had bitten off the insulation; may be not if he had used insulated tools.

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