AS 3639.1-1989
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Low voltage switchgear and controlgear Multiple function devices - Automatic transfer switching equipment (automatic transfer switches)
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
06-30-2017
English
01-01-1989
Specifies requirements for switching equipment designed to automatically transfer an electrical installation or part of an electrical installation from a normal source when it is interrupted or its voltage and frequency deviate unacceptably from specified values, and to automatically transfer it back when the normal source of supply meets specified requirements.
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