Impedance Pipeline Heating Systems

HELP!

What is the GFP required here in Section 427.27, Exception?

I know it is not a GFCI. but I cannot find it in the UL Directory.

It is a Ground Fault Protection of Equipment.

First one who calls me within the next 1/2 hour will win a prize!

617-818-7627


Joe Tedesco, NEC Consultant