Is anyone aware of any manufacture or standards identifying at what ampacity secondary injection testing is necessary? To my knowledge this is a decision for the owner to assess and determine if they will test breakers 200Amps and greater, 400amps and greater, etc.
Is anyone aware of good documentation breaking down when to use different breaker types? We are performing electrical studies for several facilities and have run into older breakers from multiple manufactures that are not readily identified. If we are lucky their ampacity is marked but nothing...
