GB/T 4473-1996 in English

《GB/T 4473-1996交流高压断路器的合成试验》由TC65（全国高压开关设备标准化技术委员会）归口，主管部门为中国电器工业协会。
本标准规定了交流高压断路器进行合成试验时的总则、用于短路开断和关合合成试验的试验技术和方法、基本短路试验方式和燃弧时差。本标准适用于GB 1984《交流高压断路器》所辖范围的断路器。遵守本标准的规定所进行的短路开断和关合试验，其试验结果与相应的直接试验等效，其他电器需要以合成试验法来确定开断和关合能力时，可参照本标准作出规定。本标准所涉及的是目前普遍应用的合成试验方法和技术，旨在为合成试验和正确评价试验结果确定准则，试验电路的改进则不受限制。

Scope

This standard specifies the general rules for composite tests of AC high-voltage circuit breakers, test techniques and methods for short-circuit breaking and closing composite tests, basic short-circuit test methods and arcing time difference. This standard applies to circuit breakers within the jurisdiction of GB 1984 "AC High Voltage Circuit Breakers". The test results of the short-circuit breaking and closing tests carried out in compliance with the provisions of this standard are equivalent to the corresponding direct tests. When other electrical appliances need to use the synthetic test method to determine the breaking and closing capabilities, they can refer to this standard for regulations. . This standard involves synthetic test methods and techniques commonly used at present, aiming to establish criteria for synthetic tests and correct evaluation of test results, and the improvement of test circuits is not limited.