NEMA - National Electrical Manufacturers Association
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NEMA WD-AG 1-2017
Scope
This application guide covers wiring devices and accessories intended to help protect sensitive equipment from malfunction due to noise on the equipment grounding path. Devices include receptacles@ single or duplex with straight blade or locking NEMA configurations@ rated 15 A to 60 A and 125 V to 600 V. Accessories include color-coded mating plugs and wall plates to identify isolated ground receptacles. In addition to indicating the devices and accessories available for isolated ground installations@ this guide covers National Electrical Code? (NEC) requirements@ applications for isolated ground circuits@ and trouble shooting and maintenance of such installations. This application guide does not consider analysis of noise currents on the grounding system of power supply circuits or their effects on sensitive electronic equipment. Note: National Electrical Code? and NEC are registered trademarks of the National Fire Protection Association.
NEMA WD-AG 1-2017 history
2017NEMA WD-AG 1-2017 Application Guide for Isolated Ground Wiring Devices
2002NEMA WD-AG 1-2002 Application Guide for Isolated Ground Wiring Devices