TCVN 5935-1/ IEC 60502-1
6610 TCVN 01/ 60227 IEC 01
6610 TCVN 02/ 60227 IEC 02
6610 TCVN 53/ 60227 IEC 53
AS/NZS 5000.1:2005
9615 TCVN 81/ 60245 IEC 81
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