GFI question

Question

Typical day, I overhear that FX will spray water on the set and my bestboy brought a bunch of 15amp edison GFI's wanting to plug them into the soco breakouts. 
 I've never encountered this before. Can GFI's be plugged into dimmer feeds? We're using ETC Sensor3 racks.

PatrickBoozer · Accepted Answer

Not a great idea. 
 
Honestly, I've never heard of this either. Sounds like they are inexpensive home depot GFI's? If so they are calibrated to sense a difference in current at 120 volts. As you dim it - I wouldn't expect the GFI to GFI anymore. 
 
If the lights are more or less at full - this might provide some level of protection. 
 
Typically you put a large GFI on the service in question - and then adjust the sensitivity so it doesn't constantly trip as your crew plugs/unplugs/plugs/unplugs everything in site..... 
 
This question is probably better suited for a licensed electrician and a lawyer.