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    70KVA Generator Keeps Tripping Out

    I am supplying a 3 phase board with from a 70kva 3 phase generator. The board is protected by a 100A screw in fuse on each phase. The generator unfortunately keeps tripping out without MCBs, RCDs tripping in the board or any of the 100A fuses blowing. The house has passed all earth and...
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    Colour Coding for 3 Phase in Ireland

    I am feeding a 3 phase DB. Is the colour coding still Red Yellow Blue for the phases and Black for the Neutral? If the cables are safely enclosed from cabinet to board, can I use PVC Single core cables?
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    Single Phase v 3 Phase

    Generally speaking, what is the KVA limit for a single phase supply?? Can you have, for example, a 30 KVA single phase supply?? :?:
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    Main Bonding to Hot Tank Cupboard

    I have run a 10mm earth cable cable from board to hot hot tank cupboard and have looped across all pipework with 10mm loops. This is correct isn't it???
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    Bonding a House with Four Bathrooms

    I am wiring a house with two ensuites and two big bathrooms. Should I take my earth off the light in each bathroom and have four bonding loops or loop off one light and loop across the four bathrooms and have one bonded circuit?
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    10.8 KW Electric Shower - 6mm or 10mm

    A 10.8KW electric shower will draw 10800/230 = 47A. 6mm Twin & Earth when clipped is rated to carry 47A and could safely carry more. Would I be taking a chance using 6mm instead of 10mm??
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    Sub Board to be wired from Main Board

    I am supplyng a small fuse board to a garage adjacent to the main house with a 4mm SWA. This cable is rated at 36A according to IEEE Table. There are only four twin sockets, a water pump and some lights in the garage installation Do I need to have an isloator switch between both boards...
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    Bonding - All pipes are non metallic

    If all of the plumbing pipework in a bathroom area is the flexible plastic type, nothing would need to be bonded, Right?????
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    Testing Equipment for Electrical installations

    I am nearing the completion of a large two storey house with 280 electrical outlets and will need to certify the installation soon. What testing equipment would I need. Is there any one piece of testing equipment that would enable me to carry out all of the necessary tests? :?:
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    Chasing walls for plastic conduit

    Hi everyone, I am doing quite a large electrical job with about 250 electrical points. There is about 130 chases to be done on six inch block wall. Regarding the chasing, are there any regulations on chasing across the wall. I will obviously be chasing top to bottom but in some...
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