Just for info, the breakers are all 15 amp, except for the one on the bottom left, which is a 20 amp GFCI breaker, although that doesn't appear to be connected on the other end, so might get removed in the new panel.Īlso, I will most likely upgrade all of the 15 amp breakers to AFCIs, considering they're all associated with bedrooms (yeah I know that's a lot of outlets and lights :D). Typical sizes of wires for 100 Amp Service are 4 AWG or 2 AWG for copper wiring and 2 AWG, 1 AWG, or 1/0 AWG for aluminum or copper-clad wiring. Seems hard to find that kind of wire, though. We have calculated wire gauges for 125 amp service at 0-500 distance away from the source and for 12V, 120V, and 220V voltages. So when I get the new panel (), does that mean I'll have to wire a ground wire from the main panel? If so, what AWG? Since this is 70 amp, I'm assuming 4 AWG. Here you input wire length, voltage, and allowable voltage drop percentage, and the calculator will size a 125 amp copper wire size automatically. It appears that the neutral (the bus on the left) and ground (the bus on the right) bus are connected. One of the things I have noticed first of all is that there is no ground wire. I decided to take a look at the sub-panel (since I was considering updating it to a newer one), which is running off of a 240 volt 70 amp breaker on the main panel and appears to be a Siemens ITE from around the 80s or early 90s, and this is what I found inside (sorry for it being blurry): What Im having a hard time determining is if the ground wire to the sub panel. I have read that one should strive for a voltage drop of less than 3 and from what I can tell this means I need 2 cu or 1/0 al for the two hot and neutral. The other day, I was thinking of a few electrical 'improvements' to my home. I would like to install a 120/240 volt 100 amp sub panel on a detached garage that is about 200 ft away.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |