On April 3, 2021 at 11:09, Ernie Gilman said...
Seems a little DIY and not professional. My "professional" application is turning off the power going through a junction box in a warehouse so that I can add an outlet. There is no outlet.
In order to be safe so that I can install an outlet on the box, I have to install an outlet on the box.
The "pro" device would allow clipping onto wires instead of just connecting to a power outlet.
Puts me ahead of where I was, though!
A 'pro' electrical service installation would include labeling the freaking breakers, right? Wouldn't you be able to look at the panel and figure out which outlets are near the location of the new one and determine whether one can be added to that leg? Is there a space for another breaker in the panel?
Or, you could use a clamp-style ammeter and add a load to the J-box you want to tap.
Are you a licensed electrician?