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Hello fellas. Had the dno trying to tell me that a 19 ohm ze reading on a tns system was ok to leave energised? Seriously? Can someone please explain to me how that is ok?
Discuss Sky high ze reading in the UK Electrical Forum area at ElectriciansForums.net
TN-CS (PME) 0.35ohms TNS - 0.8ohms did they come round to test it or was it over the phone you told them .so a higher ZE may not be an issue if the dno decide that its down to network parameters. All they would do is ensure the main fuse is sized appropriately.Hello fellas. Had the dno trying to tell me that a 19 ohm ze reading on a tns system was ok to leave energised? Seriously? Can someone please explain to me how that is ok
Hello fellas. Had the dno trying to tell me that a 19 ohm ze reading on a tns system was ok to leave energised? Seriously? Can someone please explain to me how that is ok?
Hello again. It wasn’t me who spoke to them on the phone so I have no idea if they were important. I installed a new fuseboard and when it came to testing the ze i obviously came across the reading. They sent someone out and that was when he told me the reading is fine providing it has suitable rcd protection, which it has. It’s a full rcbo board and the operating times were well within boundaries. I didn’t argue with him as I don’t deal with their side of things and therefore wouldn’t question that I know more about his job than him but personally I would not have been happy to walk away and leave it. They are supposed to be going back tomorrow morning to fix the issue though
but personally I would not have been happy to walk away and leave it.
So was the installation left isolated by yourselves pending arrival of the D.N.O?
So...
You didn't bother to get yersen a Ze first... before doing your stuff...?
See how now your responsible for getting it sorted for em...?
I’m only responsible for getting the dno out to sort their problem. Once it’s handed over to them it’s out of my hands. That’s how I see it anyway
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