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Discuss Using armour as cpc in the Electrical Forum area at ElectriciansForums.net

Y

YTSOxford

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Right.
I have added a couple of garden lights onto a radial circuit that is in a garden for a pond etc. However as always the contractor supplies the cable. New board in house, the cable to the pond 2.5mm 3 core swa...up to 17th etc... but i have only been given 2 core swa 1.5mm.

So I am using the armour as the earth in this case, as I remember from 17th update, the tutor saying this is fine. But what I can't get my head around is.... The lights are metal, so terminating at each end, does this not produce eddy currents???

Discuss:)
 
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Right.
I have added a couple of garden lights onto a radial circuit that is in a garden for a pond etc. However as always the contractor supplies the cable. New board in house, the cable to the pond 2.5mm 3 core swa...up to 17th etc... but i have only been given 2 core swa 1.5mm.

So I am using the armour as the earth in this case, as I remember from 17th update, the tutor saying this is fine. But what I can't get my head around is.... The lights are metal, so terminating at each end, does this not produce eddy currents???

Discuss:)
I thought that eddy currents occurr with single core cables?
 
K

kevinreilly

  • Thread Starter Thread Starter
  • #3
yeah eddy currents are caused through single core cables bunched separately.Phases on their own and neutrals also.
 
W

wet string

  • Thread Starter Thread Starter
  • #4
concur with eddies in singles, if memory serves they occur i twins but cancel themselves out, i use the armour as cpc every time, but dont no what to put on cert.for cpc cross section,just put the min required ,1.5 for 2.5 cores etc.
 
concur with eddies in singles, if memory serves they occur i twins but cancel themselves out, i use the armour as cpc every time, but dont no what to put on cert.for cpc cross section,just put the min required ,1.5 for 2.5 cores etc.
I put S or SWA,and put a reference to it in legend.don't know what you are SUPPOSED to do.
 
Y

YTSOxford

  • Thread Starter Thread Starter
  • #6
Cheers guys for clearing that up; and yeah i'll reference it aswell I think
 
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