0
What size wire should be used for ground wire from main to subpanel?
Wiki User
∙ 11y ago
The size wire you would use for a sub panel box would depend on the square footage of the area it will be servicing.
<<>>
Wire is sized by the amperage of the load, not the square footage of the area it will be servicing. . Depending on what the amperage size of the sub panel that is to be installed, will govern what the conductor size that is to be used.
Wiki User
∙ 9y ago
Wiki User
∙ 12y ago4 awg copper conductors would be required. Rather expensive.
For economical reasons, a more practical solution would be to install 2/2/2/4 aluminum cable. About 1/3 the cost of copper, and as an added bonus, can support up to 100 amp service.
Direct burial type cable can be found at most home centers such as Home Depot, etc.
----mikey
Wiki User
∙ 11y agolook in table 250.66 nec
Wiki User
∙ 10y agoAWG # 6 copper.
Add your answer:
Earn +20 pts
What size wire is best to run for a breaker box piggy back from another breaker box?
The wire is sized to the breaker in the main box that is feeding the subpanel. The calculations for the subpanel is based on what devices will use the subpanel and an estimate of duty factors for the devices. An electrician can provide this information, or you can look on-line in the National Electric Code for estimation methods.
Can you run an additional breaker panel parallel to the existing one?
It is not in parallel. You put a breaker in existing panel and use that to feed the subpanel. The Amperage of this subfeed breaker should match the rating of the new panel. For example a 100A breaker might be typical. Remember that ground and neutral are only "bonded" at the main panel. Usually a subpanel has a means to separate the neutral and ground in a subpanel. Be careful since everything about doing this is dangerous.Another AnswerYes, you can have two breaker panels in parallel. If you had a 100 amp panel on a 200 amp service (or increase the size of the service, check with your power company on the size of your service, you could add a second 100 amp panel in parallel with the first. You can have up to 6 disconnects per service, but they must be located adjacent to each other or in the same enclosure. So either install the second panel beside the first or a 100 amp disconnect beside the first panel and feed out of the disconnect to the new panel located where you need it.
What size wire do you need you need run about 50000 plus watts of electricity The barn sits 300 feet from the main power box?
That certainly is a lot!! It sounds like you will need to install a 200 Amp subpanel in your barn. This means that your main power box will have to have room for a 2-pole 200 Amp breaker, in addition to whatever other main breakers that may be in it. As far as wiring: normally you could go with 3/0 copper, or 4/0 aluminum. However, with a 300-foot run, I would size up my wire by at least one. 4/0 for copper, or 250kcmil for aluminum MINIMUM. You only want a maximum of a 5% voltage drop from the main breaker to the barn's subpanel. Using the smaller wire size will probably give you a drastic voltage drop, causing tools to not work properly. Be certain the wire gets buried 18-24 inches below the ground.
Can a paralleled grounded conductor be a 2?
A conductor used for grounding of the main service should be a single wire. The code book has a table that states the size of ground wire for different service panel amperages.
How do you read breaker box amps?
The main breaker will have marking indicating size of electrical service, or if it is a fuse system....the fuses will have current ratings. If it is a subpanel, it might not have a main breaker. In this case you would have to look in the panel that the feed is coming from and find the size of the breaker that is feeding it. In either case you must look for the manufacturer's label that will have the maximum current the panel can handle, make sure the breaker feeding the panel doesn't exceed this rating.
What size wire should be used from main panel to 50 watt subpanel?
#6 wire is needed. If placing the subpanel in a garage at a good distance, it is recommended to also install a seperate ground rod .
What size wire is best to run for a breaker box piggy back from another breaker box?
The wire is sized to the breaker in the main box that is feeding the subpanel. The calculations for the subpanel is based on what devices will use the subpanel and an estimate of duty factors for the devices. An electrician can provide this information, or you can look on-line in the National Electric Code for estimation methods.
Is the main circuit breaker is a sum of the sub circuit breaker?
Typically yes because that is what makes sense. However, the subpanel could have the same size breaker as long as the panel were rated for that amperage and the wire sizes were appropriate.
Can you run an additional breaker panel parallel to the existing one?
It is not in parallel. You put a breaker in existing panel and use that to feed the subpanel. The Amperage of this subfeed breaker should match the rating of the new panel. For example a 100A breaker might be typical. Remember that ground and neutral are only "bonded" at the main panel. Usually a subpanel has a means to separate the neutral and ground in a subpanel. Be careful since everything about doing this is dangerous.Another AnswerYes, you can have two breaker panels in parallel. If you had a 100 amp panel on a 200 amp service (or increase the size of the service, check with your power company on the size of your service, you could add a second 100 amp panel in parallel with the first. You can have up to 6 disconnects per service, but they must be located adjacent to each other or in the same enclosure. So either install the second panel beside the first or a 100 amp disconnect beside the first panel and feed out of the disconnect to the new panel located where you need it.
What size wire do you need you need run about 50000 plus watts of electricity The barn sits 300 feet from the main power box?
That certainly is a lot!! It sounds like you will need to install a 200 Amp subpanel in your barn. This means that your main power box will have to have room for a 2-pole 200 Amp breaker, in addition to whatever other main breakers that may be in it. As far as wiring: normally you could go with 3/0 copper, or 4/0 aluminum. However, with a 300-foot run, I would size up my wire by at least one. 4/0 for copper, or 250kcmil for aluminum MINIMUM. You only want a maximum of a 5% voltage drop from the main breaker to the barn's subpanel. Using the smaller wire size will probably give you a drastic voltage drop, causing tools to not work properly. Be certain the wire gets buried 18-24 inches below the ground.
How should be maximum size of world cup ground?
300
What size should a cold water main be?
a cold water main should be a minimum of 3/4" and to figure the right size of main you will need to look up in the UPC and figure out all your fixture units and PSI and elevation
What size should under ground conduit be from pole to meter base?
For new 200 amp services the conduit size should be 3 inch PVC.
Can a paralleled grounded conductor be a 2?
A conductor used for grounding of the main service should be a single wire. The code book has a table that states the size of ground wire for different service panel amperages.
How do you read breaker box amps?
The main breaker will have marking indicating size of electrical service, or if it is a fuse system....the fuses will have current ratings. If it is a subpanel, it might not have a main breaker. In this case you would have to look in the panel that the feed is coming from and find the size of the breaker that is feeding it. In either case you must look for the manufacturer's label that will have the maximum current the panel can handle, make sure the breaker feeding the panel doesn't exceed this rating.
What size subpanel do you need for 6 20A circuits?
The size of the sub-panel is dependant upon the total load amps of the devices you want to connect. Take into account if more that one device will be or could be running at one time.
What size ground wire should I use for a 50 amp hot tub panel?
# 10 bare copper.
