SR HD 348 S7:2001

High-voltage alternating-current circuit-breakers

Applies to a.c. circuit-breakers designed for indoor or outdoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 000 V. Applies only to three-pole circuit-breakers for use in three-phase systems and single-pole circuit-breakers for use in single-phase systems. Two-pole circuit-breakers for use in single-phase systems are subject to agreement between manufacturer and user. Also applies to the operating devices of circuit-breakers and their auxiliary equipment. However, circuit-breakers with a closing mechanism for dependent manual operation are not covered since a rated short-circuit-making current cannot be specified, and dependent manual operation may be objectionable because of safety considerations. Does not cover circuit-breakers intended for use on motive power units of electrical traction equipment, or circuit-breakers for use with overhead lines which include series capacitors.

General information

Status : Withdrawn
Approval date : 12/5/2001
Publish date : 12/6/2001
Withdrawal date : 9/24/2002
Number of pages : 0
ICS : 29.120.40 Switches
Technical Committee : 8 - High-voltage switchgear and controlgear and testing techniques, instrument transformers

Relations with other standards:

Normative reference SR EN 60071-2:1999
Normative reference SR CEI 60050(441):1997
Normative reference SR CEI 60296+A1:2000
Normative reference SR EN 60137:1998
Normative reference SR EN 60129+A1:1996
Normative reference SR CEI 60050(604):1997
Normative reference SR CEI 60185:1994
Replaced by SR EN 62271-100:2002