IEEE C 37.20.1a-2005 金属外壳低压电力线路断路器开关装置.修改件1:短时和短路耐受电流试验.多电缆连接的最小区域

标准号：IEEE C 37.20.1a-2005
中文标准名称：金属外壳低压电力线路断路器开关装置.修改件1:短时和短路耐受电流试验.多电缆连接的*小区域
英文标准名称：Metal-enclosed low-voltage power circuit breaker switchgear - Amendment 1: Short-time and short-circuit withstand current tests - Minimum areas for multiple cable connections
标准类型：K43
发布日期：2005/12/30 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：K43
国际标准分类号：29.130.20
适用范围：Low-voltage metal-enclosed switchgear-which contains either stationary or drawout, manually or electrically operated low-voltage ac or dc power circuit breakers in individual grounded metal compartments, in three-pole, two-pole, or single-pole construction-is covered. Rated maximum voltage levels are 254 V, 508 V, or 635 V (ac) and 300/325 V, 800 V, 1000 V, 1200 V, 1600 V, or 3200 V (dc). The standard deals with service conditions, ratings, temperature limitations, and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and application.