School project, adding a gym attached by a short corridor to the existing building. They have an addition water service is coming into the far side of the gym building for a sprinkler system fed by a diesel fire pump. Is a grounding electrode conductor required to be ran from the main electrical room some 750+ft away {250.104 (A)(1)(1&2)} or will the equipment grounding conductor suffice{250.104(A)(2)? Or could a bonding jumper of sufficient size be bonded to building steel to make the connection to the grounding electrode system {250.104 (A)(1)(3)?
Water Pipe 250.104
- Thread starter Rock86
- Start date
You might want to review this thread in regard to sprinkler bonding:
If, after reading, you decided to bond, it may be bonded using he building steel per 250.68(C)
Sprinkler Main Bonding
We have an apartment building with a 1600-amp service. The sprinkler main comes through the slab in steel pipe for 18" and changes to PVC for the rest of the sprinkler piping. The Building Official feels the 18" of pipe needs to be bonded with 3/0. The code he is using is 250.104(B). Does 18" of...
forums.mikeholt.com
If, after reading, you decided to bond, it may be bonded using he building steel per 250.68(C)
jaggedben
Senior Member
- Location
- Northern California
- Occupation
- Solar and Energy Storage Installer
That is likely your best option.
Thanks. I want to say that was helpful, but honestly I didn't see any resolve haha. I think will call a local AHJ and run the scenarios by them. I feel the code could be interpreted different ways working for and against the situation. Because it is a school, you could consider as a separate occupancy or structure. There are plenty of ways to spin it.
I heard an instructor once say "You give me a code, and I will show you a legal way to break it."