High-voltage switchgear and controlgear - Part 100: Alternating current circuit-breakers (IEC 62271-100:2008)
Abstract
This part of IEC 62271 is applicable to a.c. circuit-breakers designed for indoor or outdoor installation and for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 1 000 V. It is only applicable 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 and application at frequencies lower than 50 Hz are subject to agreement between manufacturer and user. This standard is also applicable to the operating devices of circuit-breakers and to their auxiliary equipment. Rules for circuit-breakers with an intentional non-simultaneity between the poles are under consideration; circuit-breakers providing single-pole auto-reclosing are within the scope of this standard.
Begin
2005-03-04
Planned document number
IEC 17A/726/CD
Responsible national committee
DKE/UK 432.1 - Hochspannungs-Schaltgeräte
