govdude
New User
- Location
- Walla Walla, WA
Inspecting work on a large medical campus and ran into this situation, seems wrong to me, but can't really prove or disprove that notion. Attached a sketch for clarity. Basically, we have a 480V 800A emergency generator electrical service in EMT passing from one building through another to a third building. In between, these newly installed 480V conduits make contact with the low voltage fire alarm system EMT conduits in the middle building. I took exception, and the contractor took exception to my exception .
Researching on topics such as intersystem bonding, etc., I don't know whether:
1. formalize a bond between the systems
2. yank the fire alarm conduit somewhere nobody would be able to touch both conduits at the same time
3. shove electrical tape between the conduits where they touch
4. who cares
Thoughts? The only thing I've come up with after about two hours of research is NFPA 72 requirement that only intentional, permanent grounds are allowed in a fire alarm system.
Researching on topics such as intersystem bonding, etc., I don't know whether:
1. formalize a bond between the systems
2. yank the fire alarm conduit somewhere nobody would be able to touch both conduits at the same time
3. shove electrical tape between the conduits where they touch
4. who cares
Thoughts? The only thing I've come up with after about two hours of research is NFPA 72 requirement that only intentional, permanent grounds are allowed in a fire alarm system.