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Cable arrangements

MG

Hi all,

I have this area where I need to route a large number of single phase three core armoured cables on a tray.

Is it acceptible if I arrange the cables in a trefoil formation making sure that each trefoil group has all three phases?

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  • 0

    generally yes, it is normal to do this. 

    Watch for one bundle heating another, you may need more room than you think,  and try to get bundles that are zero-sum with all their phase currents as far as possible. (may mean LLLN or LLL - depends on the loads, keep neutrals near the phases they relate to.)

    Mike

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  • 0

    generally yes, it is normal to do this. 

    Watch for one bundle heating another, you may need more room than you think,  and try to get bundles that are zero-sum with all their phase currents as far as possible. (may mean LLLN or LLL - depends on the loads, keep neutrals near the phases they relate to.)

    Mike

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