IEC STANDARD 60056 PDF
Buy IEC High Voltage Alternating Current Circuit Breakers from SAI Global. STANDARDS. SUBSCRIPTIONS. Content Management Software. Buy IEC Ed. High-voltage alternating-current International Equivalents – Equivalent Standard(s) & Relationship – (Show below). Buy IEC HIGH VOLTAGE ALTERNATING CURRENT CIRCUIT BREAKERS from SAI Global.
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Premier complement of CEI-IEC – CERN Document Server
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International Electrotechnical Commission – Wikipedia
The benefits of a subscription: 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. Replaces IEC to