Re: Service Upgrade
frank_n said:
I'm replacing a service and have a few questions. It's going to be a 100-amp service. The existing service is 100 amps. Do I have to call the electric co.? If I do, what department do I call?
Well, it will depend on who the utility is - PSE&G, GPU, etc.
This service - meter in the same spot? If the meter is being reloacted, you may need their approval on location.
The cut-in - you may need to call them to do a cut-in. I do my own cut-ins in PSE&G territory, but GPU does theirs. You may also need them to open the lock.
Most of my work is in PSE&G's territory and I call their "Wiring Inspection" dept. in Seacacus. PS has a "green book" that has virtually ALL the requirements for a service....I say virtually, because the 5 copies I recieved are now trash as they revised the whole damn book. Here's a link to the revision:
Green Book, revision 1-6-06
(yeah, it's the whole book)
frank_n said:
The existing service has SE cable. Does that mean I can use SE cable on the new service. How do I find out when conduit is required?
General rule is - replace what's there with what's there - BUT, what else has changed? A new driveway on that side, a new window or balconey, etc.
frank_n said:
Finally, what is a 100amp service going for in central NJ?
Why are you NOT upgrading the size?
From our (EC's) perspective the time and cost factors are very close - to leave the service as 100A is almost a disservice to the customer. For a few bucks more the customer will have a service that will last for another 50 years before an upgrade is even considered.
From the inspectors POV, how do justify a 100A service - aka, do a load calculation.
Finally, does the customer have
any plans to add additional equipment - like central AC, a pool or hot tub, etc. If they have even the slightest thought of adding anything with a heavy load, I suspect your 100A service will not be enough to satisfy the demand.
If the service is to be upgraded, you may need to have an ESI performed by the utility. Basically, it's a survey they do to determine if they can supply the new/higher demand.
....now to answer the question....How much?....
A 200A service starts at 2k. The price of smaller wire and a smaller load center is minimal, say $200 less +/-. That's where I would be - about $1800. For that...that might as well just go for the 200A.