3/0 on 200 amp service? Why? - Electrician Talk
2014年12月18日 · Why are people putting 3/0 cu on a 200 amp single phase 3 wire service. They keep quoting 310.15 using 90 degree rating for copper as being 200 amp. I am questioning if they even understand what happens inside an electrical panel. Let me explain. Each ungrounded conductor of the service carries 100 amp a piece of the 200 amp rated service.
300ft, 200amp feeder run. What size wire would you run
2021年5月4日 · 300ft from disconnect to panel. 200 amps. My calculations show 350 mcm Al for 3.46% vd. The client has a buddy that is a master electrician and is telling him to run 250/250/ (4/0). I'm suggesting 350/350/350 as it's a long run and I don't think derating the nuteral is worth the few bucks of cost saving.
What size wire? 200 amp service - Electrician Talk
2018年1月3日 · frenchelectrican said: Over here in my area ., the 200 amp residentails typically use 4/0 alum and some case if have to use copper for 200 amp residentails then use 2/0. but for GEC all copper no alum due that size service typically have brick or cement wall and it will eat up alum conductor if not done right.
Proper Grounding and installation of 200 amp service
2013年2月18日 · System is properly grounded. 2) In house with copper water pipes install system grounding conductor in 200 A combination panel by running insulated green wire to copper water pipe (before water meter) and attach using an appropriate connector. From the meter base run 2 black and one white to combination panel with main disconnect.
what size wire for a 100 amp subpanel 200' away...
2010年6月21日 · The sub panel is 100 amp but what is the calculated load. If you are looking for the wire size for 100 amps at 240 then 2/0 alum. would work. For copper you need #1. For the EGC then look at T. 250.122. "If the doors of perception were cleansed everything would appear to man as it is, Infinite. William Blake.
Grounding Water Pipe 200amp service - Electrician Talk
2013年3月26日 · 4 CU To water pipe #6 CU to rod. Bare #2 AL to water pipe is so much cheaper. Anything with the service such as bonding and sizing the grounding electrode conductor deals with T. 250.66. Table 250.122 is the equipment grounding conductor that may be run with conductors for a branch circuit or a feeder- these would have an overcurrent protective ...
200 AMP direct burial wires ( 350 Ft Long runs) | Electrician Talk
2021年11月18日 · we use a lot of ACWU aluminum for underground services, the longer the run the bigger the wire. We recently did one 600’ and used 500mcm (maybe still too small) for 200A. Going that far underground is going to be expensive no way around it. ACWU is not a very often used option in the USA , both will likely run about the same as ACWU is ...
600 Amp feeder wire size - Electrician Talk
2020年1月24日 · Building my first ever 3 phase 120/208 600 amp service. I plan to parallel the feeder wires but I'm not positive what size wire to use? Any help would be appreciated. I would use Table 310.15 (B) (16) I would use parallel 300 copper or parallel 400 Aluminum in 2-1/2" EMT, 3" EMT if it were a long run or had more than 3 90s in it.
200 Amp Service # 6 Ground to Ground Rods? - Electrician Talk
2019年4月22日 · 200 Amp Service # 6 Ground to Ground Rods? I had to add a second ground rod to a house I worked on recently. It was a 200 Amp Service with a #4 Braided Copper ran to the water main. I buried the ground rod and crimped onto the #4 ground with a #6. 250.66 A seems to clearly state that you never need to use anything larger than a #6 copper for ...
200 amp service upgrade need to use existing "1 1/4 conduit
2024年2月19日 · Schedule 40 and 80 1& 1/4 are going to be different answers. THWN. Schedule 40 - Three 1/0 conductors. That would cover 175 amps panel. Schedule 80 Three 1 AWG conductors. That would cover 150 amp panel. Both would be an upgrade of a 100 amp panel. Area for 200 Amps. Schedule 40 ID is 1.360, Area = 1.452 sq inch.