I.S. HD 448 S4:1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
COMMON CLAUSES FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROL GEAR STANDARDS
Hardcopy , PDF
02-26-1999
English
01-01-1999
Applies, unless otherwise specified in relevant IEC standards, to all a.c. high-voltage switchgear and controlgear designed for indoor or outdoor installation, for operation at service frequencies up to and including 60 Hz, on systems having voltages above 1,000 V.
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