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What size aluminum wire to feed 125 Amps 220 volt a distance of 175' and what size ground?
Wiki User
∙ 10y ago
A 3/0 aluminum conductor will limit the voltage drop to3% or less when supplying 125 amps for 175 feet on a 220 volt system.
If the 125 amp load is a sub distribution panel that is not going to be fully loaded to 125 amps then using the exact connected load, which might be smaller than 125 amps will effect the wire sizing. The grounding conductor for that size distribution panel is #6 bare copper.
Wiki User
∙ 10y ago
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What is the max amps for a 4 gauge wire can 4 gauge feed a 100A breaker box?
Yes, # 4 AWG copper and 100 amps is the max.
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Who many amps are needed to feed a 600 v to 480 v 3 phase 70 KVA transformer?
The equation for amperage when the kilowatts are known is Amps = kVA x 1000/1.73 x Volts.The electrical code states that a feeder for a transformer has to be rated at 125% for the primary and secondary load amperages.The amperage on the primary needed to supply a 70 KVA three phase transformer to its full capacity at 600 will be 68 amps. 68 x 125% = 85 amps. A #4 copper conductor with an insulation factor of 90 degrees C is rated at 95 amps.The amperage on the secondary needed to supply a 70 KVA three phase transformer to its full capacity at 480 will be 84 amps. 84 x 125% = 105 amps. A # 3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps.
What size wire is needed for 400 amp 480 volt service?
A 500 MCM wire with an insulation factor of 90 degrees C is rated at 430. Most 400 amp services will use parallel wires on each leg to feed the circuit. A 3/0 wire with an insulation factor of 75 and 90 degrees C is rated at 200 and 225 amps respectively. The insulation rating of these conductors will be 600 volts.
What is the minimum cable size required for 400Amps incoming supply?
A 600 MCM copper conductor with a insulation factor of 75 or 90 degrees C is rated for 420 and 455 amps respectively. To reduce the wire size from a single conductor, a parallel feed of 3/0 can be used.
What is the max amps for a 4 gauge wire can 4 gauge feed a 100A breaker box?
Yes, # 4 AWG copper and 100 amps is the max.
What does 1000 peak amps mean on jump boxes?
It means the manufacturer has tested a box like the one you have by feeding 1000 amps through it without problems like the insulation breaking down or arcs happening between the contacts in it. They're not saying that if you feed 1001 amps through the box it's going to instantly self-immolate; they ARE saying if you feed 1000 amps through it, it won't.
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Yes i believe it does. The amunt of load determines the Q-point of the amp, and thus the flow of currrent , which in turn heates up the amp consderably. Also in some feed-back amps, it changes the amplfication levl ,but i am sure, these problems are accounted for in epensive amps .
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