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美国插头标准
UL498 Attachment Plugs and Receptacles
UL498
StandardforAttachmentPlugsandReceptacles
FirstEdition–December,1931
SecondEdition–September,1939
ThirdEdition–June,1942
FourthEdition–November,1948
FifthEdition–September,1952
SixthEdition–November,1954
SeventhEdition–December,1959
EighthEdition–May,1962
NinthEdition–April,1974
TenthEdition–September,1981
EleventhEdition–November,1986
TwelfthEdition–April,1991
ThirteenthEdition–April,1996
FourteenthEdition
December26,2001 |
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发表于 2007-7-24 17:21:23
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发表于 2007-7-25 09:32:50
