Easy way to get a series combo rating – sometimes??? Maybe?
Hi all. As I continue to slog through my list of 104 buildings on campus I need to do studies on I discovered yet another over-dutied situation yesterday. Common scenario, […]
IEEE 1584 and Overdutied Breakers
I guess this directed at IEEE 1584 Committee members (Jim) and I know you can’t say too much but is overdutied breakers/equipment going to addressed in the new IEEE 1584? […]
Using the series rating charts – real example
Don’t mean to beat this topic to death. Well, yeah, I guess I do, but since I had another example of being over dutied/under rated come up today I thought […]
Existing Overdutied Equipment
This week’s question is a continuation of last week’s topic regarding overcurrent devices that do not have an adequate interrupting rating. When the calculated short circuit current is greater than […]
Overdutied Protective Devices and Catastrophic Failures
People seem to love to watch videos of electrical explosions. One type of failure is when a protective device is applied beyond its interrupting rating and catastrophically fails (explodes) when […]
