实施日期:2006-01-01
Standard for relays and relay systems associated with electric power apparatus
实施日期:2005-09-22
实施日期:2009-12-09
实施日期:2005-12-06
实施日期:2012-03-29
实施日期:2006-01-01
实施日期:2013-08-23
Guide for determining the effects of high-temperature operation on conductors,connectors and accessories
实施日期:2004-09-23
实施日期:2013-06-04
Testing and performance for optical ground wire (opgw) for use on electric utility power lines
实施日期:2009-09-11
实施日期:2010-03-25
实施日期:2013-03-08
实施日期:2012-12-05
Recommended practice for establishing liquid-filled and dry- type power and distribution transformer capability when supplying nonsinusoidal load currents
实施日期:2008-03-27
实施日期:2008-08-04
实施日期:2011-01-01
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