This standard pertains to the requirements for current and voltage protective functions of: 1) direct-acting overcurrent electromechanical trip devices 2) direct-acting overcurrent electronic trip systems 3) reverse-current trip systems 4) undervoltage trip devices, that are integral with low-voltage ac (635V and below) and general purpose low-voltage dc (600V and below) power circuit breakers cov...
IEEE C37.17/D9, March 2010由美国电气电子工程师学会 US-IEEE 发布于 2010-09-24,并于 2010-09-24 实施。
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