http://159.105.83.167/Portals/0/WP Safety/Portable Generators qnd OSHA Construction Standards22.pdf
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BTW, 900' of perfectly good Romex will probably have enough inter-conductor capacitance to give you 4 mA of reactive leakage current and so would validly trip a GFCI.
If it is the Romex the fix would be to have the gen. only run sections or only specific appliances/fixtures in your house.
I suppose you could check this by running the generator with almost all breakers off in your house. Turn them on one by one until you trip the GFCI. If the thing trips with all breakers off the problem almost certainly has to be elsewhere.
You could also check the leakage current of the wiring in your house. Put a 7-1/2w incand. lamp in series with the ground wire that serves the cable downstream of your GFCI. If the voltage across the bulb reads from 0.6 vac to up to 120vac you've found your leakage path to ground. A normal reading would be less than 15 mVac. Disconnect chunks of the cable or appliances until the leakage current goes away.
?
BTW, 900' of perfectly good Romex will probably have enough inter-conductor capacitance to give you 4 mA of reactive leakage current and so would validly trip a GFCI.
If it is the Romex the fix would be to have the gen. only run sections or only specific appliances/fixtures in your house.
I suppose you could check this by running the generator with almost all breakers off in your house. Turn them on one by one until you trip the GFCI. If the thing trips with all breakers off the problem almost certainly has to be elsewhere.
You could also check the leakage current of the wiring in your house. Put a 7-1/2w incand. lamp in series with the ground wire that serves the cable downstream of your GFCI. If the voltage across the bulb reads from 0.6 vac to up to 120vac you've found your leakage path to ground. A normal reading would be less than 15 mVac. Disconnect chunks of the cable or appliances until the leakage current goes away.