separately derived system
- Thread starter bench892
- Start date
- Status
Re: separately derived system
Trace the equipment ground conductors from the receptacle to the service single point ground bus.
You will notice there is no other contact with a grounded object. The isolated ground is essentially an open circuit. No current will flow.
A non-isolated receptacle will have two ground points. This is a closed circuit; current will flow.
The isolated ground conductors should terminate at the ground electrode, not at the service panel neutral bus, but the code indicates it is approved to go to the bus.
There will be varying NE (neutral to earth) voltage on the neutral, this will create NE current.
I got a chance to try out my new terms.
[ June 19, 2003, 04:28 PM: Message edited by: bennie ]
Trace the equipment ground conductors from the receptacle to the service single point ground bus.
You will notice there is no other contact with a grounded object. The isolated ground is essentially an open circuit. No current will flow.
A non-isolated receptacle will have two ground points. This is a closed circuit; current will flow.
The isolated ground conductors should terminate at the ground electrode, not at the service panel neutral bus, but the code indicates it is approved to go to the bus.
There will be varying NE (neutral to earth) voltage on the neutral, this will create NE current.
I got a chance to try out my new terms.
[ June 19, 2003, 04:28 PM: Message edited by: bennie ]
- Status