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How do you calculate the total amps used in the house? |
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Answer for U.S., Canada, and similar 120v/60Hz split single phase power supplies:
This is a complex question that requires you to do some reading, as it confuses even electricians. The applicable reference is:
NEC 220.40 Feeder and Service Calculations
Typically if you are asking this question you should call an electrician to help you. However if you read the applicable NEC article you will be able to calculate your own service.
If you do not understand the work well enough to accomplish it yourself properly and safely, don't try it. Consult a professional electrician, as they are proficient enough to do it properly and safely.
When working on electrical circuits and equipment, make sure to de-energize the circuit you will be working on. Then test the circuit with a definitive means to make sure it is off (multimeter with metal tipped leads, voltage tester with metal tipped leads, etc., not a non-contact tester, which is non-definitive.
This can be done by using a clampmeter, this is a instrument that clamps over the main incoming cable ( hot wire ) where it enters the distribution board. you set the meter to read amps and this gives you the total amps being used at that time.
First answer by ID0000000000. Last edit by Camjude. Contributor trust: 0 [recommend contributor]. Question popularity: 210 [recommend question]
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