R1+R2 confused???

[yoz7241]

When doing PIR`s is it only continuity of final ring that you can find R1+R2???
If so how do you measure R2 for the report??? Im not quite sure!!! Im trying to make sense of it??? I know ZS is ZE+r1+r2 can anyone make sense of this for me!!!

 

[nickblake]

no you can do it on all circuits , you join the L and the CPC together at the CDU and test at the furthest point of the circuit at the immersion heater last light on the circuit , cooker connection plate shower etc

 

[BluSparx]

You only need R1+R2 or R2 you don't need both for any report EIC or PIR

 

[Sintra]

When testing you have to test the continuity of the cpc for all circuits this can be done in one of two ways.

R1 + R2 or R2

Have a read of this thread.

 

[telectrix]

think op is confused between end to end of ring as opposed to R1 and R2. note of upper and lower case letters when reading regs. etc.

 

[IQ Electrical]

If I understand your question, the only way you can ascertain R1+R2 on a ring final is by way of the continuity of ring final circuit conductors test.

The R1+R2 value can be obtained at the step 3 stage interconnections of lines to cpc's.

 

[PC Electrics]

When doing PIR`s is it only continuity of final ring that you can find R1+R2??? Yes, at step 3
If so how do you measure R2 for the report??? with a wander lead from the met to your meter Im not quite sure!!! Im trying to make sense of it??? I know ZS is ZE+r1+r2 no, Zs=Ze+R1+R2 can anyone make sense of this for me!!!

and for a ring final, R1+R2 = (r1+r2)/4