Natfuelbilll
Senior Member
What must be the frame rating must the the equipment supplied by the tap conductors?
For example consider tapping a 1200A feeder with a <25 ft long tap using 400A conductors. Say the load supplied by the tap is 30 amps.
Tap conductors are not less that 1/3 rating of device protecting the tapped feeder.
Tap conductors terminate in single set of fuses that limit the load to the ampacity of the tap conductors.
Tap conductors are physically protected.
What must be the FRAME rating of the fused disconnect switch 400 amps or 30 amps?
Thanks
For example consider tapping a 1200A feeder with a <25 ft long tap using 400A conductors. Say the load supplied by the tap is 30 amps.
Tap conductors are not less that 1/3 rating of device protecting the tapped feeder.
Tap conductors terminate in single set of fuses that limit the load to the ampacity of the tap conductors.
Tap conductors are physically protected.
What must be the FRAME rating of the fused disconnect switch 400 amps or 30 amps?
Thanks