Electric Power & Utilities/us power supply

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Question
can u tell me about the standard voltages of Americe power supply(including resident & industrial sector)?

Answer
Augustine,

Residential is : 120/240 volts single phase.

Commercial and Industrial is basically : 120/240 volts 3 phase,  120/208 volts 3 phase, 277/480 volts 3 phase, depending upon the needs of the customer.

You could also search out more detailed info on the web.

Bob

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PV Electric Bob Mossman

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Master Electrician licensed (29 years) 6165B Contractor in Closter New Jersey with 38 years total experience in Residential - Commercial - Industrial work. Emergency Service - General trouble shooting and repair work - Paddle fans - Kitchen & Bath exhaust fans - AC lines - Smoke detectors - Telephone lines - Cable TV lines - Computer network cabling - Exterior lighting - Recessed lighting - Security lighting - (200 - 150 - 100 amp service up grades) - Electric Heat - New circuits - New appliance hook ups - Back up generators - and more ! FREE ESTIMATES Fully insured 201-358-1552

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