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essexboy · 16-07-2008

thanks for your responses

the earthing system is tn-s but the test was done at the ccu end on the upstairs ring circuit only not through the meter tails .2 fused spurs feeding shower pump and tail rail were isolated there is no other vulnerable equipment on the circuit so tested between L-N ,L-E ,N-E

???

16-07-2008	#4 (permalink)
essexboy Junior Member Join Date: Jan 2008 Posts: 8	Re: insulation resistance problem thanks for your responses the earthing system is tn-s but the test was done at the ccu end on the upstairs ring circuit only not through the meter tails .2 fused spurs feeding shower pump and tail rail were isolated there is no other vulnerable equipment on the circuit so tested between L-N ,L-E ,N-E ???
essexboy Junior Member Join Date: Jan 2008 Posts: 8