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现行 JB/T 10821-2008
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低压交流降压及三相平衡系统节电装置 System power saver for low voltage AC
发布日期: 2008-02-01
实施日期: 2008-07-01
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NEMA ICS 61800-2-2005
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IEEE C62.41.1-2002
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GB/Z 21713-2008
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现行
IEEE/ANSI C37.52-1974
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