Discuss Testing in the UK Electrical Forum area at ElectriciansForums.net

During initial verification, r1+r2 or r2 needs to be confirmed at the furthest point. The only way to measure r1+r2 or r2 is physically removing the lamp/cover and gain access to the conductors.

If you are performing r1+r2 this is a good time to confirm polarity too using the light switch.
and if we are correcting posts, it's R1 and R2. not r1 and r2. :p :p
 

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