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I like the job site tools one the best. I don't know how many times Iv'e been told that GFI's never nuisance trip because of that

Sam I am not sure what you mean here.

I believe that almost all GFCI tripping can be traced to a 'real' problem.

Every appliance is likely to have leakage current, running to many items from on GFCI is not a good plan as the cumulative leakage current.

Long branch circuits can also cause problems.

Then of course you could just have a faulty appliance.

My sump pump in my basement happens to be on a GFCI and it runs a 3 or 4 times an hour when it rains. It has never tripped the GFCI. [Linked Image] When it does I will buy a new pump.

The engineered prints I work from will specify a separate GFCI receptacle for every location that needs one, no using GFCI breakers, or coming off the load side of another GFCI outlet.

This is also how we do job temps, normal breakers with a GFCI receptacle at the point of use.


Bob Badger
Construction & Maintenance Electrician
Massachusetts