Discuss 3 phase or not 3 phase in the Electrical Forum area at ElectriciansForums.net

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shocked

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Hi all
came upon a 3 phase + N supply into a domestic property with only one of the phases being used to feed the c/u.
On the cert do i put down 3 phase or single phase
thanks
john
 
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ruston

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Are the other phases supplying other installations not in that property , ie terraced houses?
 
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Plonker 3

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  • #3
How many of the phases in the house have a meter fitted to them?
 
S

shocked

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  • #4
the other phases are not used at all,i assume they do not have fuses in holders
 
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Plonker 3

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Never assume anything, if no meters are installed for other phases then it is a single phase supply. Although I would put it down as a 4 wire 3 phase system, as long as that is what the main incoming cable is.n
 

ruston

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Never assume anything, if no meters are installed for other phases then it is a single phase supply. Although I would put it down as a 4 wire 3 phase system, as long as that is what the main incoming cable is.n
That's the way I would look at it too.
 
S

shocked

  • Thread Starter Thread Starter
  • #7
Only 1 x single phase meter fitted so I'll call it 4 wire 3 phase T-N-S supply but treat it on the cert as a single phase supply.
thanks Dillb and ruston
 
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