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[From NEC 2012 310.15(B)(16)] For a 350 MCM copper wire with: an insulation factor of 75 and 90 degrees C; not more than 3 current-carrying conductors in Raceway, Cable, or Earth; and based upon ambient temperature of 30°C ; has an amperage rating of 310 and 350 amps respectively.
As a rule of thumb, you could consider their rating to be double with two sets paralleled together for 620 or 700 respectively. Be sure to account for temperature derating [NEC 2012 310.15(B)(2)(a)].
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EzraFor a 600 amp parallel run, it is recommended to use at least 500 kcmil copper or 900 kcmil aluminum wire for each set of parallel conductors to ensure proper current-carrying capacity and voltage drop considerations. It's crucial to consult local electrical codes and standards to determine the exact wire size requirements for your specific installation. Professional advice from a licensed electrician is also recommended to ensure safety and compliance.
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What size wire would you use for a 70KW 240 vac single phase generator?
For a 70kW 240V single phase generator, you would typically use a wire size of 3/0 AWG copper wire. This size wire is rated to handle the current carrying capacity required for a generator of that size to ensure safe and efficient operation. Be sure to consult with a professional electrician to confirm the correct wire size for your specific installation.
What size wire do you need to run to an air conditioner that has a maximum breaker size of 40 amps and a minimum circuit size of 25.3 amps?
You would need to use a wire size that is rated for at least 40 amps to be safe and to meet the requirements of the air conditioner. A common wire size for this application would be 8 AWG copper wire, which is rated for 40 amps.
Can you run two 60 amp sources in parallel to get 100 amps out?
No, you cannot run two 60 amp sources in parallel to get 100 amps out because each source will still provide a maximum of 60 amps. When you connect them in parallel, the total current output will remain the same as the output of a single source, which is 60 amps in this case.
What wire size should you use for 600 amps?
For 600 amps, you would typically need at least a 250 MCM wire size to safely handle the current without overheating. It's recommended to consult with a professional electrician to determine the specific wire size needed based on the application and local electrical codes.
Which wire used single phase 240v 6.5kw load?
I = W/E. Amps = Watts/Volts = 6500/240 = 27 amps. A #10 copper conductor with an insulation factor of 90 degrees C is rated at 30 amps. If the load is continuous the conductor can only be loaded to 80% of its capacity. 30 x 80% = 24 amps which is too low for your load. Move to the next size wire which is a #8 which is rated at 40 amps x 80% = 32 amps. As long as no long distance runs are involved this wire size will work well.
