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What would the group rating factor be for more than one layer of many multicore cables laid on a cable ladder system?

Okechukwu Ezeaba

Considering many distribution circuits where many multicore cables would be on laid on a cable ladder system all touching with more than one layer, what will the group rating factor be? As per Table 4C4 of BS 7671, I observed that values were given for just single layer of cables up to 9 cables. Please note that some of the cables would be used for intermittent loads and they are not all of the same sizes.

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      I too seem to have disappearing replies ....

    did I type something wrong?

        - Andy.

  • 0 in reply to AJJewsbury

    No  , seems that our auto moderation system had a tizz and put your reply in the queue for review? Strange that it was noting your reply but not displaying it though! Will investigate further so please do contact me if it happens again (with screenshots) either via PM or via community-online@ietengx.org 

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  • 0 in reply to AJJewsbury

    No  , seems that our auto moderation system had a tizz and put your reply in the queue for review? Strange that it was noting your reply but not displaying it though! Will investigate further so please do contact me if it happens again (with screenshots) either via PM or via community-online@ietengx.org 

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