Hi there,
Ive just tested a new installation and getting a ZE of 0.45 on a TN-S system.
I'm also getting a ZS at the board of 0.45.
Its only a small house so the R1+R2 readings are pretty low..
Sockets 0.22
Lights 0.66
Shower 0.03
Cooker 0.06
The problem im having is when taking the ZS reading they are really high.
Sockets 1.37
Lights 1.81
Shower 1.18
Cooker 1.21
So this would indicated the ZS at the board been 1.15
My testers are fully calibrated and working fine on other installations.
I've had to leave the power off today due to time to look deeper into it, but my thoughts are that it could be the RCD thats faulty.
As the ZS from the henly block and the main switch of the consumer unit are both 0.45, but i never checked the zs from the out going side of the RCD..
All earthing is correct
Anyone ever come across this..
Ive just tested a new installation and getting a ZE of 0.45 on a TN-S system.
I'm also getting a ZS at the board of 0.45.
Its only a small house so the R1+R2 readings are pretty low..
Sockets 0.22
Lights 0.66
Shower 0.03
Cooker 0.06
The problem im having is when taking the ZS reading they are really high.
Sockets 1.37
Lights 1.81
Shower 1.18
Cooker 1.21
So this would indicated the ZS at the board been 1.15
My testers are fully calibrated and working fine on other installations.
I've had to leave the power off today due to time to look deeper into it, but my thoughts are that it could be the RCD thats faulty.
As the ZS from the henly block and the main switch of the consumer unit are both 0.45, but i never checked the zs from the out going side of the RCD..
All earthing is correct
Anyone ever come across this..