ANSWERS: 3
  • Your problem is probably a short at one of your junctions. But a 30 amp breaker is too high for 12 gauge wire. you should be using a 20 amp breaker for 12 gauge. http://www.electrical-online.com/cableandwire.htm
  • THREE 25W bulbs per post? Let's see.... P=I*E I=P/E I= 25W / 120V I = ~0.21 amps per bulb That means about 8.125 amps just for the bulbs. But what about the wiring? What is the resistance of over 500 feet of that 12/2 wire (13*40=520)?
  • First off your breaker is too big for your wire and you wire is too small for the distance you are running it. Now that we see the obvious problems what can we do about it. You should able to correct this problem by switching you breaker to a 240vot double pole 20 amp breaker and ordering in special 240 volt light bulbs. This may require you to change the lamp socket and remove the outlets. Bill Lutz Generation 3 Electric, Inc. http://generation3electric.com http://electrician-in-philadelphia.blogspot.com/

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