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Safe Disconnection to Undertake Work.

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Scene. An old farm building now used as a double glazing frame maker's workshop.


The supply comes from an old shed about 40 metres away, where the meter is. The old shed has some 70s/80s rusty M.E.M. isolators that feed several S.W.A. cables that exist the shed in many directions underground. I suspect that one feeds the main farmhouse, another a rented cottage and the others various farm buildings. There is no clear labelling of the isolators.


What is the best way to locate the frame maker's  building supply where I have to work?


Somewhere I have a circuit i/d set, if I can find it, but that will need access to the live parts and I do not wish to turn off the wrong isolator.


Z.


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  • 0
    Chris is correct, safety first. The farmer is not there Kelly, he is a gentleman farmer and is noticeable by his absence. If there are chicks being reared under heat lamps somewhere they may suffer if the mains is disconnected. I have a feeling that the supply to the workshop does not come from the damp shed because the three phase supply to the workshop has a separate C.P.C. running alongside it and none exists in the damp shed with the main fuses and meter. I suspect that the workshop supply comes from a distribution board in a farm building somewhere. This idea came to me in the night.


    I will not work live under any circumstances on this job. I do not wish to remove the covers of the old rusty metal trunking or bus bar chamber as that would mean turning off the main switch.


    I will try to ask the farm manager, if he is present, about distribution board locations and access. Or I will try to connect up the new 4 way three phase board in the workshop to the outgoing side of the existing switch in the grotty old three phase board in the workshop.


    I will report back later. (Hopefully in one piece with all of my natural hair).


    Thanks all,


    Z.
Reply
  • 0
    Chris is correct, safety first. The farmer is not there Kelly, he is a gentleman farmer and is noticeable by his absence. If there are chicks being reared under heat lamps somewhere they may suffer if the mains is disconnected. I have a feeling that the supply to the workshop does not come from the damp shed because the three phase supply to the workshop has a separate C.P.C. running alongside it and none exists in the damp shed with the main fuses and meter. I suspect that the workshop supply comes from a distribution board in a farm building somewhere. This idea came to me in the night.


    I will not work live under any circumstances on this job. I do not wish to remove the covers of the old rusty metal trunking or bus bar chamber as that would mean turning off the main switch.


    I will try to ask the farm manager, if he is present, about distribution board locations and access. Or I will try to connect up the new 4 way three phase board in the workshop to the outgoing side of the existing switch in the grotty old three phase board in the workshop.


    I will report back later. (Hopefully in one piece with all of my natural hair).


    Thanks all,


    Z.
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