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SPD Question

richard64

Would sub main cables run externally on tray require the same SPD protection (ie. Type 1) as overhead cables?

I would guess so, but I've been asked the question.

Type 2 will be fitted at the distribution boards.

  • 0

    Do the cables have an earthed armour or shield?

        - Andy.

  • 0 in reply to AJJewsbury

    Yes...they are run in SWA.

  • 0

    Looking at the lightening protection zones concept, If the sub mains are in LPZ 0/1, type 1 SPDs

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