Showing 0 products
Frequently Asked Questions
What does withdrawable construction actually give you?
A device removed without a shutdown.
It racks out onto its carriage.
Shutters close over the busbar contacts.
Other circuits keep running.
Maintenance stops being an outage.
Is fixed-mounted ever the better choice?
Often, where continuity is not critical.
It is smaller and cheaper.
Fewer moving parts to maintain.
The trade is a dead board during work.
Many sites accept that happily.
What do the forms of separation mean in practice?
How much of the inside is compartmented.
Busbars kept away from devices.
Devices kept away from terminals.
And units kept away from each other.
Higher forms allow work alongside live parts.
Does an internal arc rating prevent a fault?
No, it directs one.
Pressure and hot gas need somewhere to go.
Vents route them up and away.
Doors are designed to stay shut.
The operator survives an event that still happened.
Where does this equipment belong?
Where an outage costs more than the gear.
Hospitals and data halls.
Continuous process plant.
Main incoming positions generally.
Small distribution rarely justifies it.
How much room does a line-up need?
More than the cubicles themselves.
Breakers rack out into the aisle.
Doors need swing.
Rear access depends on the arrangement.
The room is part of the design.
Can capacity be added later?
Only if it was left there.
Spare ways cost little at build.
Busbar extension is a shutdown.
So is a new section.
Ordering spare capacity is the cheap decision.