0
I would recommend 1/0 just to be sure you have very little line loss.
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It depends on whether the 100 amp panel is rated at 100% or 80% loading.
If the panel is only rated for 100% loading, meaning that a full 100 amps can be drawn from it, the wire size will be #2 copper conductor which is rated at 130 amps. The feeder can only be loaded to 80 present so will have a working amperage of 130 x .8 = 104 amps.
If the panel is only rated at 80 percent loading then a #3 copper conductor can be used. A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps. 115 x .8 = 92 amps.
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How do you rewire a 110v RV generator ONAN to produce 220v for backup power for your house?
yes you can use. but you need to install 110v to 220 volt step up transformer . It depends on the generator. Some are 120 only. Need full model and serial number to help you.
You ran power from your house to your shop about a year ago The problem you are having is one of the bus legs in your shop panel box is not hot so every other 20 amp breaker is not hot on that leg?
Sounds as though you only ran a 110 volt power supply to your new shop subpanel. You need to supply 220V with a neutral and ground from your main panel to your subpanel. The 220 supply needs to come from a two pole 220V circuit breaker in your main panel. (example 50 or 100 Amp) Then, most importantly, you must use the correct size wire to carry the current. That is the wire must be sized correctly to the 220V breaker. The neutral must also be the same size as the conductors. Once you determine how much power you need in your shop, size the supply 220v circuit breaker and wire accordingly. Check with your local building department if you are unsure or what size wire to use with what size breaker or refer to Table 310-16 in the National Electric Code. In Australia domestic power is 240v So you have run single phase power to a three phase switchboard. To get power to those breakers you must hook the active to the busbar connected to those circuit breakers.
How much power can you run on 2.5mm cable?
When you say "Power" you're talking overall wattage. But, what you need to find is the current limit for that gauge cable, which is everywhere on the internet. Try the NEC Section 300
Considering 100A 240V service has 2 poles at 100A each is the total usable power actually 200A at 120V?
No, amperage is not additive, but a constant. Think of power as water, its always the same temperature, hot (amps). The pressure is variable (volts). The true answer is undoubtedly more complex, but you get the point. If you need to draw 200 amps you would actually need a 400 amp service because code states you cannot have more than an 80% load on a breaker That's an interesting question and I had to run the theory through my brain a few times to confirm my answer. The answer is if you have a 100A 240V service, you could draw what appears to be 200A from that panel at 120V. If you install 100A 120V single pole breakers on each side of the panel (in reality this would be many breakers but let's keep it simple) then both breakers will operate just fine, giving the appearance of 200A. In reality, however, one breaker actually feeds through to the other breaker. The neutral only carries the unbalanced load so in this hypothetical situation the neutral at the panel carries 0A. So the answer to the question is...if you install ONLY 120v single pole breakers, you can run up to 200A on those circuits (or 80% of that as we have discussed.) But you are only running 100A on each leg of the service conductors and breaker.
What gauge wire do you need for a 600w rms Subwoofer 1200w Peak?
8 gauge is very common and really all youll need but i prefer 4 gauge its alittle more spendy but its good. make sure the amp wire holders will fit 4 gauge if you go with that.
