Slitting Existing Service

[mtnelectrical]

I have a customer that wants to split his existing 100 UG service into 2 60amp services. This is an old house that has been change into a 2 family house. Small square foot area; maybe 400 sq ft per floor. Who would make the decision to what size service would it be?. This is a PSEG territory in Northern New Jersey

 

[Buck Parrish]

Unless you're hitting a disconnect some where it may be the power company's decision. I'm pretty sure the NEC In SFD requires a 100 amp service. I'll have to check it out. What type of heat, ac, dryer, wall oven, range, water heater. Will there just be one person in it or a family.
Do you have to run the lateral for the power company, Or will you be hitting a disconnect.

 

[mwm1752]

Sounds like you already have a 100 amp service to the structure with the wire size -- as long as the service handles the load there may be many options -- 230.90(A)exc 3 might be a solution & install you own metering equipment -- or small 2-meter stack all in one -- There are probably circumstances not revealed that could eliminate both of those option too.

 

[mtnelectrical]

Splitting Existing Service

Splitting Existing Service

There is a 100 disco right after the under ground pull box in the basement, then it goes to the meter pan and then to the main breaker box. the idea is to feed after the disco a trough and from there feed 2 meter pans .

 

[Smart $]

There is a 100 disco right after the under ground pull box in the basement, then it goes to the meter pan and then to the main breaker box. the idea is to feed after the disco a trough and from there feed 2 meter pans .

Shouldn't be a problem, but you'll have to get blessing from and coordinate with POCO and AHJ.

 

[mtnelectrical]

Yeah, definitely their blessing. :happyyes:

 

[meternerd]

There is a 100 disco right after the under ground pull box in the basement, then it goes to the meter pan and then to the main breaker box. the idea is to feed after the disco a trough and from there feed 2 meter pans .

Many utilities do not allow a disconnect , breaker or fuses ahead of the meter (called "old sequence") anymore because to service the disconnect or fuses, you have to deal with unmetered equipment, which us usually behind a sealed cover. The exception is when you have more than 6 service disconnects in a multi-meter service. You'd likely have to place the meters and service disconnects outside. Check with the utility before you spend any money. Best thing might be to leave the existing utility meter and just sub-meter the two panels. Then the utility isn't involved.

 

[mwm1752]

There is a 100 disco right after the under ground pull box in the basement, then it goes to the meter pan and then to the main breaker box. the idea is to feed after the disco a trough and from there feed 2 meter pans .

230.72( C )/ 240.24(B) is the basement accessible per NEC?