I seen many electricians do this many times. Never thought much of it. But then I am no electrician.
I noticed a method used to wire a switch and am wondering if it's safe.
Power comes into the box and on that wire there is a 1/4" section removed. That section was secured under the switch screw and then continues on to bring power to the second switch.
Is this safe? Should it be pigtailed?
Thanks for any replys!
"Any American who is prepared to run for President should automatically, by definition, be disqualified from ever doing so."
I used to do it that way before I knew any better. Now I HATE that method.
I pigtail a separate wire for each switch.
Answers based on the 2008 & 2011 NEC. If you're on the '14 already I feel sorry for you.
In the olden days of solder, it would in some cases save a splice and would save time.
Today, not so much.
Occaisionally on a double duplex with a single cable in, I will use this method. Just leave a little extra wire, strip a bare spot and wrap them.
For ganged switches it can save a lot of space, but does take more time.
It can also be a PITB when replacing a bad switch...
I would think that would be fine so long as the bare portion of wire wrapped around the screw and had a good connection. And actually this would be a better connection than a pigtail/wire nut as it would be one contiguous piece of wire...
However, try stripping a wire "in the middle" of a run. Not very easy. And the insulation wants to spring back to where it was to begin with. I would not mess with this myself.
This is quite a common method seen every day in the field. As far as safety there is no problem. If you are going to change a switch wired this way you should turn the power off to the circuit. Also its a good rule to always turn a circuit off when working on one. One should never work on live circuits.