Bonding of steel and water mains

Status
Not open for further replies.
S

SamsTLC

Member
Location
Ocean county, NJ
Occupation
Electrical Contractor
I am installing a new service in a warehouse.
The structure is steel and has steel water and Sprinkler lines. I will be bonding them all to the main service (along with a #4 UFER)

My question is, Does every individual bonding point need to run to the service (ie a 'homerun'), or can I jump from one to the next.
It will save me a lot of material and labor if I can run a wire from my water to my steel and from the steel down to the service.
 
You can use jumpers and some electrodes to interconnect one another.

It's important to maintain the required wire size for the jumper in question.
 
LarryFine said:
You can use jumpers and some electrodes to interconnect one another.

It's important to maintain the required wire size for the jumper in question.
Click to expand...
Thanks for the quick reply!
It's an 800A Service with 2 sets of 600 Cu. I am using a 250 Al as the bonding jumper.
I plan to simply install a 2-barrel Mech lug on the steel and have that as my junction point.
 
The steel and water pipe electrodes will require the 250 kcmil Al. As noted the CEE will only require #4 copper so as long as they're all attached to the steel you're good to go.
 
SamsTLC said:
Thanks for the quick reply!
It's an 800A Service with 2 sets of 600 Cu. I am using a 250 Al as the bonding jumper.
I plan to simply install a 2-barrel Mech lug on the steel and have that as my junction point.
Click to expand...
How close is your service to the water main. I'm curious about the double burrial lug
 
That's why I ask about the double barrel lug

Why wouldn't just go from the service to building steel
At the service location. Than go from the water main to building steel at the water main location
 
david said:
That's why I ask about the double barrel lug

Why wouldn't just go from the service to building steel
At the service location. Than go from the water main to building steel at the water main location
Click to expand...
Good point. I'm not really sure what my thought process was when typing the message because my actual plan was exactly what you are saying. Go figure.
Anyway, Thanks!
 
Status
Not open for further replies.
Top