- Reaction score
- 67,272
and if we are correcting posts, it's R1 and R2. not r1 and r2.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.