I am moving a sub panel from one position to another but the feed wires #2 are not long enough to reach new panel so i want to know if I can make a j box and splice them and what would i use as wire nuts are to small.
for a sub-panel yes, you can splice the #2 wires. it should be a 4 conductor,2 hot, 1 neutral, 1 ground. use a 10x10box with the correct sized connectors. ground the box. you can use split bolts but for a few $ more i prefer ilsco clear taps. they are much easier to use without all the rubber tape hassles. be sure to splice the branch circuits in an accessible j-box also. be safe
First, the splice must be made in a box, not in the wall. A standard junction box is too small, you will need something about 10 inches square and 4 inches deep. You will also need a cover plate for this, along with some 2 romex connectors. The box must be accessible, so don't dry wall or panel over it. And ground the box. For wire that size you will need split bolts (kernies) or side by side splicers. These are not insulated so make sure you have plenty of electric tape available.
Yes you can extend you feeds if done properly. You should make sure your splice is done inside a box. The is true to any electrical splice in your home. 1. Make sure you use the same size cabling of you existing feeders. 2. Use split bolt connectors to connect the existing feeders to your new run. 3. Use both friction tape and electrical tape to ensure your splices are electrically tight. In place of wire nuts you will use split bolt connectors. It IS possible to extend your service. Don't let anyone tell you any different. It is perfectly safe. Whether or not it conforms to you local code is questionable. As long as your not pulling a permit. nobody care. Just let your local electrical supply house what your up to. They will supply you with correct split bolts for your size wiring. Good luck
Actually it is not a code violation. There is a provision in the electrical code that says that any splice must be in an approved box with cover and it must be accessible, meaning do not sheet rock over or put cabinet in front of j box. The 8/3 part worries me. Most ranges are rated at 50 amps and number 8 is to small for 50 amps. Check the rating plate on the range. Make sure all connections are tight. Dan
