OP
shinypen
Thanks everyone, and appreciate it's next to impossible to give opinions second hand with no photos.
Discuss Consumer Unit Installation Up to Scratch??? NICEIC approved Installer. in the Certification NICEIC, NAPIT, Stroma, BECSA Forum area at ElectriciansForums.net
Cheers. I'll certainly have another look and check pfc as well.In any event, lack of bonding of services is potentially dangerous and needs to be implemented a.s.a.p. It is TN-C-S. The three neutrals into one needs further investigation and appropriate action taken to rectify if needed, which I imagine it certainly will be. You seem to have proved the Zs is satisfactory so therefore will meet required disconnection times assuming you did Zs on up and down ring. You did not mention the Pfc, which might be interesting to have a stroll around to ensure equipment installed can take the fault current.
You done Ze and said it was 0.19 Ohms.. As its TN-C-S PEFC and PSCC will be the same so the calculated PFC=230V/0.19 Ohms...which is 1210ACheers. I'll certainly have another look and check pfc as well.
You cannot base the earthing system from a ZeSorry my mistake. The Ze was 0.3. I did a quick pefc I think it was, and it was nice and high. Could've been 1600amp.
It was my house that was 0.19Ze and that's definitely a tns.
she's holding on to them. can't believe it. nesting but not dropping yet.Off topic, Tel how are the dogs doing?
Typical always keep you waiting, sleepless night ahead then?she's holding on to them. can't believe it. nesting but not dropping yet.
Thanks everyone. Plenty for me to think about which is exactly what I need!
My understanding is any incoming metal service pipework needs to be earthed regardless? Incidentally, just found out my friend was charged for the bonding and meter tails upgrade whatever the requirements are!
Cmin isn't factored into PFC measurements. If anything for PFC you would be concerned about Cmax which isn't even defined.With Amd 3 pfc is calculated as 230 x.95 (Cmin) = 218.5/0.3 = .73 Ka
Better tell the people who wrote GN3.Cmin isn't factored
I don't have my copy on me at present to verify this, but remember this is only a guide book and does not form part of the Wiring Regulations, and indeed may contain errors!Better tell the people who wrote GN3.
Reply to Consumer Unit Installation Up to Scratch??? NICEIC approved Installer. in the Certification NICEIC, NAPIT, Stroma, BECSA Forum area at ElectriciansForums.net
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