#2 Copper with TW insulation is required for 100 amp loads #3 Copper with R90 insulation is rated at 105 amps.
The neutral is the same size as the feeder conductors for a 200 amp service.
what size neutral conductor for 100 amp aluminun
what size neutral for 100 amp
In the service distribution panel there are termination points at the top of the panel. Two of the utilities "hot" conductors terminate on the main breaker. The neutral utility termination point is on a terminal block usually off to the side near the main hot terminations. It is in this neutral termination block where the system ground connects from the ground rods to the distribution panel. For a 100 amp panel the wire size will be a #6 bare copper conductor.
#8 is the size of wire to use for grounding a 100 Amp panel. Green is color used for grounding #8 is code.
Yes, but at every reduction in wire size there has to be a breaker sized to the smaller wire size. The wire size for 100 amp panels is recommended at #3 copper conductor. From the 200 amp feeder panel you will require a 100 amp two pole breaker for each of the two 100 amp services. Keep in mind that if you run the 100 amp services close to maximum this will take away the capacity of the 200 amp service for other branch circuits coming off of it. Also keep in mind that if the panels are located, not in the same building as the 200 amp service that the 100 amp panels will be treated as separate services and will have to be constructed like a 100 amp service. This includes ground rods. Also the bonding screw will have to be removed that connects the neutral buss to the panel enclosure.
20Sqmm
Without knowing what you are planning as far as load (lights,welder, refrigerator, AC,power tools) I would run #3 copper for the ungrounded legs, #6 copper for the grounded conductor(neutral) and #8 copper for the grounding conductor. This would would be on a 100 amp breaker.
In the service distribution panel there are termination points at the top of the panel. Two of the utilities "hot" conductors terminate on the main breaker. The neutral utility termination point is on a terminal block usually off to the side near the main hot terminations. It is in this neutral termination block where the system ground connects from the ground rods to the distribution panel. For a 100 amp panel the wire size will be a #6 bare copper conductor.
A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. Even though the panel is rated at a higher amperage it is the main breaker that governs the wire size.
A 100-A sub-panel would be fed from a 100-A breaker.
A #1 copper or 1/0 aluminium conductor will limit the voltage drop to 3% or less when supplying 100 amps for 100 feet on a 240 volt a single phase system.
#8 is the size of wire to use for grounding a 100 Amp panel. Green is color used for grounding #8 is code.
Yes, but at every reduction in wire size there has to be a breaker sized to the smaller wire size. The wire size for 100 amp panels is recommended at #3 copper conductor. From the 200 amp feeder panel you will require a 100 amp two pole breaker for each of the two 100 amp services. Keep in mind that if you run the 100 amp services close to maximum this will take away the capacity of the 200 amp service for other branch circuits coming off of it. Also keep in mind that if the panels are located, not in the same building as the 200 amp service that the 100 amp panels will be treated as separate services and will have to be constructed like a 100 amp service. This includes ground rods. Also the bonding screw will have to be removed that connects the neutral buss to the panel enclosure.
20Sqmm
Without knowing what you are planning as far as load (lights,welder, refrigerator, AC,power tools) I would run #3 copper for the ungrounded legs, #6 copper for the grounded conductor(neutral) and #8 copper for the grounding conductor. This would would be on a 100 amp breaker.
For service sizes of 100 amps and less a #8 bare copper conductor is required.
Fuses or breakers are used to protect the conductor to the load. A #14 wire conductor is rated for 15 amps. Most home circuitry is done with #14 wire. The minimum size breaker in an electrical panel is 15 amp so it looks like a 15 amp fuse or breaker can be used for a 100 watt light bulb.
Assuming you just plan to run outdoors above ground get a 10 AWG cord specified for outdoor use. It will be a stranded conductor rather than solid.
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.