We provide the protection that we are required too, the contacts still fail when they close into a short.
Very true. And I don't know of somebody who can predict when something shorts out.
We provide the protection that we are required too, the contacts still fail when they close into a short.
The contacts are liable to weld perhaps because the existing fault current level at the point they are provided is not taken into consideration.Just a thought...... the contacts still fail when they close into a short.
The contacts are liable to weld perhaps because the existing fault current level at the point they are provided is not taken into consideration.Just a thought.
IMO,they are too old to remain in service....When contacts are no longer anywhere near a like new condition they can weld for just about any reason.
In an industrial plant they may get routine inspections and get replaced at a certain point. That is probably wishful thinking but is about the only place it may happen. In other locations - especially dwellings they have to fail first or no one even knows they are close to needing replacement.IMO,they are too old to remain in service....
IMO,they are too old to remain in service....
In other locations - especially dwellings they have to fail first or no one even knows they are close to needing replacement.
You may well be right.
What has that got to do with the OPs question?
as a HO I do even test GFCIs or barely remember to replace batteries in smokes, like I am going to open the outside unit and look at contactor. Not.
That is shameful, every Saturday I fully dissemble all my homes electrical equipment to inspect. I will tell you, riveting the breakers back together is a pain in the rear.