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Selecting Suitable Class of SPD

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  1. sfkawshi
    sfkawshi avatar
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    Registered:
    21 Jan 2018
    21 Jan
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    For 630A LV Distribution Panel, electricity come through an underground cable from a transformer. At the transformer, there is no surge protective device. Because electricity come through underground cable, what is the suitable class of surge protective device that should I use at the incoming of the 630A LV distribution Panel?
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