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Waveform/wavecon cable sizing

Will Elec

Just had a quote in from Western Power for a new 100a 3 phase supply. There is approximately 100m between the pole mounted transformer and the cut out and the DNO has specified 185mm wavecon cable.. this seems like an overkill to me, the pole transformer is 50Kva and it seems like 95mm would be more appropriate!  Not sure what voltage drop on waveform cable is like but compared with regular SWA 95mm still seems plenty big enough.. Thoughts on this would be appreciated! Thanks




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  • 0
    Even if they will agree to a smaller cable, the saving will be modest.

    The actual cable cost is probably a fairly small part of the total.

    Transformer cost and labour to install and connect same will be unchanged.

    Trenching will cost the same.

    Labour to install the cable is probably the same, or only slightly reduced by smaller cable being easier to handle.

    Management time and trouble in planning the work will be the same.

    Cost of meter and fitting same unaltered.
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  • 0
    Even if they will agree to a smaller cable, the saving will be modest.

    The actual cable cost is probably a fairly small part of the total.

    Transformer cost and labour to install and connect same will be unchanged.

    Trenching will cost the same.

    Labour to install the cable is probably the same, or only slightly reduced by smaller cable being easier to handle.

    Management time and trouble in planning the work will be the same.

    Cost of meter and fitting same unaltered.
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