求助 : BS 7870-3.11:2011
BS 7870-3.11:2011LV and MV polymeric insulated cables for use by distribution and generation utilities Specification for distribution cables of rated voltage 0.6/1 kV. XLPE insulated combined neutral and earth copper wire concentric cables with copper or aluminium conductors BS 7870-3.11-2011http://bbs.infoeach.com/forum.php?mod=viewthread&tid=41800&fromuid=1
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