本PDF包括GI#2和#3。注:为了在本标准中保持一致的条款编号/标的物关系，故意省略了一些编号。1.范围1。1本标准涵盖额定电流为6000 A或以下、600 V或以下的塑壳断路器（为方便起见，以下简称断路器）的结构和测试，用于根据加拿大电气规范保护服务、馈线和分支电路，第I.1.2部分本标准不适用于不包含自动过电流跳闸装置的所谓塑壳开关。 1.3本标准第7条适用于可调型断路器，并补充第1条至第6.1.4条中涵盖的要求。本标准第8条适用于安装在断路器内或上的附件，以提供额外的操作或指示功能。1.5本标准第9条适用于熔断断路器和高故障保护器，并补充了本标准的其他要求。1.6本标准第10条适用于瞬时跳闸断路器，并补充了本标准的其他要求。

This PDF includes GI #2 and #3.Note:In order to maintain a consistent clause number/subject matter relationship throughout this Standard, some numbers have been purposely omitted.1. Scope1.1This Standard covers the construction and test of moulded case circuit breakers (hereafter referred to for convenience as breakers) rated at 6000 A or less and 600 V or less, intended for the protection of services, feeders, and branch circuits in accordance with the Canadian Electrical Code, Part I.1.2This Standard does not apply to so-called moulded case switches that do not incorporate automatic overcurrent tripping devices.1.3Clause 7 of this Standard applies to adjustable type circuit breakers and supplements requirements covered in Clauses 1 to 6.1.4Clause 8 of this Standard applies to accessories that mount in or on a breaker to provide an additional operating or indicating function.1.5Clause 9 of this Standard applies to fused circuit breakers and high-fault protectors and supplements the other requirements of this Standard.1.6Clause 10 of this Standard applies to instantaneous-trip circuit breakers and supplements the other requirements of this Stan dard.