IEEE PC37.21/D3, August 2016
IEEE Draft Standard for Control Switchboards

Standard No.
IEEE PC37.21/D3, August 2016
Release Date
2016
Published By
Institute of Electrical and Electronics Engineers (IEEE)
Scope
This standard covers ratings, construction, and testing of dead-front control switchboards containing, but not limited to, devices such as switches, control devices, instrumentation, metering, monitoring, alarms, annunciators, protective and auxiliary relays, and regulating devices and accessories. It includes, but is not specifically limited to, switchboards for the control and protection of appa...



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