Standard requirements for all types of electrical control circuits for ac high-voltage circuit breakers rated above 1000 V are given. This standard is applicable for any type of power-operated mechanism and for both ac and dc control power. Only basic control elements of the circuit breaker, includi...

IEC/IEEE 60079-30-1 is intended to provide a comprehensive overview of the essentialrequirements and testing appropriate to electric surface heating equipment used in explosiveatmospheres. The requirements of this part of IEC 60079 are considered to be the minimumrequirements for equipment protectio...

An optical interface for use between teleprotection and digital multiplexer equipment that can operate at a data rate of N times 64 kilobit per second where N = 1, 2 12 is described. Requirements for both physical connection and the communications timing are also included.

This guide covers the application of indoor and outdoor high-voltage circuit breakers rated above 1000Vac for use in commercial, industrial, and utility installations. It deals with usage under varied service conditions, temperature conditions affecting continuous current compensation, reduced diele...

This standard defines five types of software reviews and audits, together with procedures required for the execution of each type. This standard is concerned only with the reviews and audits; it does not define procedures for determining the necessity of a review or audit, nor does it specify the di...