Ground wire size for 400 AMP Residential NEC2020?
2023年7月21日 · Normally a 400 amp service would need 1/0 or possible #2 copper for the grounding electrode conductor but the code states there is no reason to be larger than #6 to the rods, as Jim posted. I think the reason is that an 8' rod in the soil will do no better than the equivalent of a #6 wire so they gave us a break.
200 Amp Service Ground Wire Size??? - DIY Home Improvement …
2011年8月20日 · Starting a DIY 200 amp service entrance. By code is #6 copper wire excepted from meter to 8ft ground rods? Unsure if #4 wire is required with 200 amps. thanks for any help.
Grounding Wire Size for 320 Amp Service - DIY Home …
2023年5月8日 · If you have a 320 (400) amp meter base with 2 - 200 amp panels, one on each side usually, then a #2 copper is all you need, however if you are using a meter main panel then 1/0 copper is needed based on the notes to 250.66 Based on power company wire which is 350 kcm then a 1/0 is called for in 250.66 that is 1/0 aluminum
What Size Wire for my Neutral and Ground? - DIY Home …
2019年2月22日 · 2) What AWG size does my ground wire have to be? I found these two tables 250.66 and 250.122 (attached) that suggest #8 is the smallest Cu ground I can use for 100 amps. That seems small so just want to make sure that #8 is a smart decision.
My new 200AMP Homeline Square D - DIY Home Improvement …
2010年5月10日 · The 200 amp Homeline panel avce main breaker the bonding screw will be located at top right of neutal bussbar it will have special slot for bonding screw to go in { they are self tapper so it will be little tight at first but once get thru it will lock in good } that is only avce main disconneting point but if you used this panel for subpanel ...
400 Amp Service with Two 200 Amp Disconnects...Is my...
2023年3月13日 · I'm finishing up installation of a main, 400 Amp Meter service that has two 200 Amp panel disconnects (one on each side of the meter). I've installed the service wire from the weather-head down to the top (line) of the meter and then have run the wires (double tapped) from the bottom of the meter (load) out to each of the two 200 Amp disconnects.
Wire size for grounding to water meter? - DIY Home Improvement …
2011年6月13日 · For 200 amp service use a 4 gauge copper wire from the panel to the water pipe (within 5 feet of where it enters the house and also between where it enters and the meter). This is from a different table of sizes (for grounding electrode conductors) as opposed to ground wires from main panel to subpanel (grounding conductors).
200 amp sub panel question - DIY Home Improvement Forum
2021年3月25日 · Currently have a 200 amp service, 1x 200amp main panel and 1x 100amp sub. Going to upgrade to 320 amp service, install new meter with 2x 200amp breakers. Will have the existing 200 amp become a sub then installing a new 200 amp panel in new garage addition. What size wire will I need to run for this new panel? 4/0 4/0 4/0 2/0 or 4/0 4/0 2/0 4?
4/0-4/0-2/0-#2 Legal for 200 amp sub panel? - DIY Home …
2012年1月26日 · Was at the electric supply checking on prices for wire and supplies and they said I should use 4/0-4/0-2/0-#2 wire for a 200 amp sub panel. Makes sense since my main disconnect is only 4/0-4/0-2/0 and I have to install a ground at the sub panel and seperate neutral and ground. Any advice on this would be greatly appreciated.
Conduit size required for 100, 200, 400 amp service
2022年2月27日 · 400 amp isn’t what I’d be considering, but the guy from the power company said running two pair of 200 amp wires would be sufficient. Electrician said 4/0 aluminum 3-wire for the 200 amp service. Electrician said #2 aluminum 4-wire for 100 amp service to the garage.