Hello, I am new to this forum and a new home owner. Thank you for this service!
I have electrical service in my garage but no outlet is connected to this box.
I opened up the box and there is three thick stranded wires. 1 RED, 1 WHITE, and 1 YELLOW, I think they are 10 gauge. The wires are too thick to connect to the outlet. My solution is to pigtail 14 gauge stranded wire to them using the Hot side to the Red and Neutral Side to the White using the line connections of GFCI. The Yellow Cable I left with a nut on it and is not being used. My circuit breaker for this line is at 15 amps. Is this safe or should I use thicker wires to pigtail? Thank you for your help!
As much as we would like to help, this is not a DIY forum.
There are plenty of DIY forums out there, with lots of helpful folks eager to lend a hand or an advice.
Helping DIY’ers with an advice on a NACHI board is a matter of liability for the latter, and even though I’m not a member, I still have to abide by those rules.
A quick answer to you question is, NO. 14 gauge wire is for a 15 amp circuit only and that 10 gauge wire is likely connected to a 30 amp breaker. You current plan is a potential fire hazard. Please call an electrician.
Thank you all for your help. I found out that the wires are in a Conduit system and is grounded that way. I took off the 14 gauge pigtail and connected the 10 gauge stranded wire into a 10-12 gauge Grainger fork terminal connector and wired it to the outlet. I followed the wires and they are connected in a sealed electrical service box that connects them to 12 gauge wires before they go into the panel. These 12 gauge wires are about 5 feet long before entering the panel.