2
votes
3answers
268 views

Inferring wire gauge from cable size

Is there any way to infer the gauge of the wires inside an NM cable from the size and shape of the cable? I reckon a round cable is generally -/3 W/G and a flatter cable -/2 W/G, but I do not know how ...
1
vote
2answers
1k views

How to measure voltage in a duplex (three-way) wired switch?

Consider a light with two duplex switches. The switches work as I can turn light on/off from either switch. However, I'm not getting any voltage reading on my meter. The meter does work as I can get a ...