Zs too high Discussion ThreadZs too high Electrical Advice
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 for the original thread on Electricians Forums
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 for the original thread on Electricians Forums
