back-up power

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  #1  
Old 11-03-11, 03:16 AM
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back-up power

I have an gasoline generator that I used whenever I lose power at home. It sits in my detached garage about 75 feet behind my house and when needed I use #12 extension cords to get the power to my home. Would it be better if I use larger cable and if so what size would I use? I understand I lose some amperage from the cords being so long.
 
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Old 11-03-11, 05:29 AM
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Bigger is always better and you are loosing voltage over a long run. The size of cord you need depends on the size of your generator and how many amps you are drawing through the cord. The recommended maximum for a #12 extension cord 75 feet long is for 16-20 amps or 1'760 - 2'200 watts. If you say what size generator you have we can recommend a cord size.
 
  #3  
Old 11-03-11, 08:31 AM
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Thanks for the reply. The total amps draw is about 30 and that might be a bit high since it's good to err on the high side. The generator is rated as 6250 maximum watts with 5000 running watts. Current is rated at 41.6/20.8 at 120/240 volts.
 
  #4  
Old 11-03-11, 07:45 PM
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10 guage would probably work but 8 guage would absolutely work.
 
  #5  
Old 11-04-11, 02:00 AM
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Thank you very much for the info.
 
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