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Safe Disconnection to Undertake Work.

Zoomup
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.


Parents
  • 0
    AJJewsbury:

    Has anyone tried one of those circuit tracers? The kind that you plug a "transmitter" in on the circuit you want to trace and then wave a "receiver" wand around likely supply point to see which gives the strongest signal? Never had a chance to play with one myself, but in theory sounds ideal for this kind of problem. I'm hoping the cables between the meter and switchfuses are insulated & sheathed so shouldn't screen out the trace signal (unlike perhaps the SWA armour).

       - Andy.


    That's the thing Andy. I have one somewhere, but years ago I did not find the thing very reliable. Anyway I am working on a three phase circuit with no 13 Amp sockets, and I seem to recall that the kit has a 13 Amp plug-in transmitter in it. You then wave a yellow space gun thing about close to the M.C.B.s in a consumer unit and it flashes and bleeps if you find the right circuit. (Supposedly)


    Z.


     


Reply
  • 0
    AJJewsbury:

    Has anyone tried one of those circuit tracers? The kind that you plug a "transmitter" in on the circuit you want to trace and then wave a "receiver" wand around likely supply point to see which gives the strongest signal? Never had a chance to play with one myself, but in theory sounds ideal for this kind of problem. I'm hoping the cables between the meter and switchfuses are insulated & sheathed so shouldn't screen out the trace signal (unlike perhaps the SWA armour).

       - Andy.


    That's the thing Andy. I have one somewhere, but years ago I did not find the thing very reliable. Anyway I am working on a three phase circuit with no 13 Amp sockets, and I seem to recall that the kit has a 13 Amp plug-in transmitter in it. You then wave a yellow space gun thing about close to the M.C.B.s in a consumer unit and it flashes and bleeps if you find the right circuit. (Supposedly)


    Z.


     


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