• If you're struggling to login because of the verification email not reaching you, don't worry it's just the forum settings applying the change slowly. I'll get in touch with those who are awaiting the verification email and sort your accounts out. I think new ones should go through fine now in most cases.

EF: Zs too high

Currently reading:
EF: Zs too high

B

babyshanks

Zs too high

I have a Ze reading of 0.35 on a TNCS system and I've had the DNO out to check and they say its ok.

From my main board I have 2x 10mm sub mains feeding another board and my Zs on the cables is ~0.45 ohms. Max allowed according to BS7671 is 0.35 ohms. What can I do in this instance as the high Zs is caused by the high Ze which the DNO has okayed.

Thanks for the input.

Zs too high to Continue reading...

ElectriciansForums.net for the latest in electricians' jobs, news, advice and more
 
Back
Top