ivsenroute
Senior Member
- Location
- Florida
We just had a great presentationb by one of the POCOs in our area on a new program they recently rolled out and are tweaking.
It only involves both single phase and 3phase 480 services up to 400A.
Basically they are now doing self contained metering but it changes how we set up the service. The POCO is specifying all of the equipment which is much more expensive but takes up less room.
Whether OH or UG the first stop the service makes is to a disconnect BEFORE the meter. The disconnect must be a circuit breaker type spec'd out by the POCO. From there it goes to the meter base then to another disconnect that must be within site of the meter base and line side disconnect.
For purposes of grounding, the main service disconnect will be on the load side of the meter so anything after that is a sub-feed.
This will allow their technicians to service the meter while having both disconnects (one on each side of the meter) visibly locked out. The purpose of the disconnect on the load side within site is to protect against any possible generator currents that may be present.
The load side disconnect can be a fused disconnect but the line side must be of the CB type and is very expensive. Only one manufacturer has come out with a line side disconnect/meter base combo unit and that is Milbank.
This service will only be available for 1ph 240/480 or 277/480 and 480/277 4 wire Wye. It is not available for 3 wire 3ph 480v services.
They were nice enough to give all of us handouts with detailed drawings of the different type services and their requirements.
Is anyone else in another area already using this type of setup?
It only involves both single phase and 3phase 480 services up to 400A.
Basically they are now doing self contained metering but it changes how we set up the service. The POCO is specifying all of the equipment which is much more expensive but takes up less room.
Whether OH or UG the first stop the service makes is to a disconnect BEFORE the meter. The disconnect must be a circuit breaker type spec'd out by the POCO. From there it goes to the meter base then to another disconnect that must be within site of the meter base and line side disconnect.
For purposes of grounding, the main service disconnect will be on the load side of the meter so anything after that is a sub-feed.
This will allow their technicians to service the meter while having both disconnects (one on each side of the meter) visibly locked out. The purpose of the disconnect on the load side within site is to protect against any possible generator currents that may be present.
The load side disconnect can be a fused disconnect but the line side must be of the CB type and is very expensive. Only one manufacturer has come out with a line side disconnect/meter base combo unit and that is Milbank.
This service will only be available for 1ph 240/480 or 277/480 and 480/277 4 wire Wye. It is not available for 3 wire 3ph 480v services.
They were nice enough to give all of us handouts with detailed drawings of the different type services and their requirements.
Is anyone else in another area already using this type of setup?
