The probability of 2 faults occurring is much greater than just one fault. That why the unbonded system is a lot safer. You don't need to rely on the GFI to work. They do fail.
BTW, the unbonded system has the same protections in regards to circuit breaker and GFCI. Add GFCI then three faults need to occur to get an "ouch". That system is virtually bullet proof. I'll take my chances any day of the year with those odds.
Should ground short to neutral or to hot (which isn't any big deal), I believe the 3-lite ac tester will pick it up.
Sal
SCClockDr wrote:
With the generator neutral & ground un-bonded:
If the neutral happens to short to ground and you make contact with the hot while grounded, ouch!
If the hot happens to short to ground and you make contact with the neutral while grounded, ouch!
If bonded then a hot to ground short trips the breaker on overload & a neutral short to ground will trip a GFCI breaker or outlet on ground fault if it is between the short and the bonded source.