low pfc on tt system

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meady

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Bit confused on my test results for a cabin with its own tt earthing system

I have installed 2 circuits, lights and sockets.

R1+R2 on lights =0.04

R1+R2 on sockets = 0.05

insulation on both circuits >500

ZS on lights = 111.3

ZS on sockets = 111.8

ZE = 110.4

PFC 2a :(

PSC 509a

Why would the PFC be so low? I retested it to make sure I had a good connection but got the same result. Any advice would be very much appreciated

 
Meady

Your pefc is just the result of Volts Divided by your ze

so

Say you have 220 volts and a ze of 110ohms then your pefc will be 2 amps

regards chris

 
thanks for info, just been swatting up on it all and its all sinking in now, been a long day and a few beers needed now.

 
Bit confused on my test results for a cabin with its own tt earthing systemI have installed 2 circuits, lights and sockets.

R1+R2 on lights =0.04

R1+R2 on sockets = 0.05

insulation on both circuits >500

ZS on lights = 111.3

ZS on sockets = 111.8

ZE = 110.4

PFC 2a :(

PSC 509a

Why would the PFC be so low? I retested it to make sure I had a good connection but got the same result. Any advice would be very much appreciated
All with RCD protection i take it ? :pray

 
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