The op is installing a 400 amp service using 2 200 amp panels. Some areas do require the use of ct current transformer metering for a 400 amp service.
400 Amp Service Grounding And Bonding Electrician Talk
400 amp residential service diagram. An outbuilding is being upfitted with an additional 200 amp panel and a 40 underground line from the house meter location to the outbuilding to a new 200 amp panel. I am to use the split lugs and proceed with the installation. I have one overhead 400 amp residential single phase service figured to be fed from overhead with paralleled 40 cu in 25 pvc to the service head. Service to a multi family residence such as an apartment or condominium is a business ser vice. With ct metering there are several options. Ct metering is required for 400 amp and larger single phase 400 amp and larger 120208 three phase and 400 amp and larger 277480 three phase.
By the way i dont believe 2 200 amp panels are considered a parallel install. It comes equipt with screws where the split lugs are to connect. The use of a transocket cts in switchgear see subsections 5 6 and 5 7 or overhead ct metering see subsection 5 8. Both panels will be located approximately 20 feet from the meter location the meter will be located on the exterior of the dwelling and the panels will be located on the interior. What i dont get is why there is only one screw to split 1 line side and 2 load side neutrals. See my so called diagram below.
To be parallel they must begin and terminate together. Single line feeder diagram nec 215 5. Additionally for multi tenant buildings the building addresses and unit numbers are needed as early as possible. Existing house has 200 amp underground service with 40 aluminum lateral and seu from meter to 200 amp panel. Most houses a 200 amp service is plenty even for most home businesss. Buildings structures fences pools spas etc and the location or area where the service and panelboards are to be installed.
Example diagrams are attached for your information in preparing a single line diagram. Voltage requirements size of service riser diagram etc is required. Refer to the example attached. Services up to 400 amps are single phase. Installed everything from 100 amp to 400 amp panels and the only place that ever needed 400 amp service was commercial businesss. What all do you plan on having at your place a commercial wood shop butcher shop.
Current rating typical use comment less than 200 amps. Voltage for residential services is 120240 volts except for special situations. Your local grovers sales team can advise you if this is the case in your area. Metering for 400 amp services or less. Like wanda said pumps dont need a lot unless you get really big. 31015b6 is not allowed that is a 400 amp service.
Residential service is defined as service to a single family residence. If any of these diagrams do not meet your needs. 400 amp service drawings or diagrams well this is the first time ive had to use one of their 400 amp meter bases. This type of meter base uses a transformer in the panel to step down the power before it flows through the meter. That being said years ago 100 amp sevice.
Gallery of 400 Amp Residential Service Diagram
