68th Edition, August 30, 1968
Specification for Mining type flameproof gate-end boxes - Part 2: Gate-end boxes with air-break circuit-breakers (for use on 3-phase a.c. circuits up to 650 volts)
Includes all amendments and changes through Reaffirmation Notice , June 1, 2016
Active, Most Current
Need it fast? Ask for rush delivery.
Most backordered items can be rushed in from the publisher in as little as 24 hours. Some rush fees may apply.
Contact your nearest IHS Markit Office to request rush delivery of any backordered item.
Description / Abstract:
Service conditions; ratings, design and construction, including means of protection; test requirements.