gfci tripping in a mobile kitchen

[RDS]

Our customer has a mobile kitchen that keeps tripping the gfci receptacles at the locations where he sets up. The trailer is all 110 volt lighting and one exhaust fan. It has a 6 circuit panel conncected by a 3 wire sj cord and grounded plug. Most of these gfi's are at commercial facilities where we assume the gfi's are wired properly. Do you have suggestions for causes or ways to remedy the problem? This company has several trailers. They are wired correctly and there is nothing wrong with the cords. They all have this problem at each place they set up.

[ February 10, 2006, 11:21 AM: Message edited by: RDS ]

 

[charlie b]

Re: gfci tripping in a mobile kitchen

I suppose it would be too simple of me to just say "fix his equipment"?

 

[mario]

Re: gfci tripping in a mobile kitchen

maybe even a new cord ...

 

[stars13bars2]

Re: gfci tripping in a mobile kitchen

Are you saying that they are connecting a 6 circuit panel to a 125v 20A GFI receptacle? Are the neutrals and grounds isolated in the panel??

 

[ramsy]

Re: gfci tripping in a mobile kitchen

Shared neutrals may be one culprit for good wiring tripping GFCI's. Other, good idea's offered on this forum included objectionable-current paths created by bootleg grounds, and momentary-current capacitance due to motor appliances or low-grade insulation in long circuits runs.

 

[realolman]

Re: gfci tripping in a mobile kitchen

I think fluorescent lights and exhaust fans can both trip GF; and then the next 3000 times they won't. french fryer, on demand water heater ( just kidding, don't get yer tail in a knot

You can't assume the location's wiring is OK either. I wouldn't bet the rent on any facility where vendors routinely set up.

 

[iwire]

Re: gfci tripping in a mobile kitchen

The first thing I would do is plug the 'kitchen' in and get everything running than unplug the cord (leaving everything switched on) and connect an ohmmeter between the grounding conductor and the grounded conductor of the supply cord plug.

There should be no continuity between neutral and ground in this kitchen.

I agree with Charlie, there is a problem that needs to be fixed.

IMO the most likely thing you will find is a grounding conductor contacting the grounded