A auboiler New member Apr 13, 2007 #1 We have a research facility that has a 4" stainless steel Hydrogen/Nitrogen line running along the roof. Does this pipe need to be bonded and if so how?
We have a research facility that has a 4" stainless steel Hydrogen/Nitrogen line running along the roof. Does this pipe need to be bonded and if so how?
B bphgravity Senior Member Location Florida Apr 13, 2007 #2 See Section 250.104(B) of the NEC and consult your AHJ whoever that may be.
