前言:这是CSA C22的第一版。2号60947-5-5，低压开关设备和控制设备-第5-5部分:控制电路设备和开关元件-具有机械闭锁功能的电气紧急停止装置，采用加拿大偏差，标题相同的IEC（国际电工委员会）标准60947-5-5（第1版:1997，合并修订件1:2005和修订件2:2016）。这是CSA集团根据《加拿大电气规范》第二部分发布的一系列标准之一。本标准拟与CSA C22结合使用。2编号60947-1，低压开关设备和控制设备-第1部分:一般规则，以及CSA C22。2 No.60947-5-1，低压开关设备和控制设备-第5-1部分:控制电路设备和开关元件-机电控制电路设备。本标准的制定符合加拿大标准委员会对加拿大国家标准的要求。 CSA集团已将其作为加拿大国家标准发布。范围:IEC 60947-5的本节提供了与具有机械闭锁功能的紧急停止装置的电气和机械结构及其测试相关的详细规范。本标准适用于用于启动紧急停止信号的电气控制电路装置和开关元件。此类设备可以配备自己的外壳，也可以按照制造商的说明进行安装。本标准不适用于:非电气控制回路的紧急停止装置，例如液压、气动；没有机械闭锁功能的紧急停止装置。紧急停止装置也可用于提供紧急关闭功能。本标准不涉及任何关于噪声的具体要求，因为具有机械闭锁功能的电气紧急停止装置的噪声排放不被视为相关危险。 注:另见IEC 60204-1:2005的9.2.5.4。

Preface:This is the first edition of CSA C22.2 No. 60947-5-5,Low-voltage switchgear and controlgear — Part 5-5: Control circuit devices and switching elements — Electrical emergency stop device with mechanical latching function, which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 60947-5-5 (edition 1:1997 consolidated with Amendment 1:2005 and Amendment 2:2016). It is one in a series of Standards issued by CSA Group under Part II of theCanadian Electrical Code.This Standard is intended to be used in conjunction with CSA C22.2 No. 60947-1,Low-voltage switchgear and controlgear — Part 1: General rules, and CSA C22.2 No. 60947-5-1,Low-voltage switchgear and controlgear — Part 5-1: Control circuit devices and switching elements — Electromechanical control circuit devices.This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.Scope:This section of IEC 60947-5 provides detailed specifications relating to the electrical and mechanical construction of emergency stop devices with mechanical latching function and to their testing.This standard is applicable to electrical control circuit devices and switching elements which are used to initiate an emergency stop signal. Such devices may be either provided with their own enclosure, or installed according to the manufacturer's instructions.This standard does not apply to:emergency stop devices for non-electrical control circuit, for example hydraulic, pneumatic;emergency stop devices without mechanical latching function.An emergency stop device may also be used to provide an emergency switching off function.This standard does not deal with any specific requirements on noise as the noise emission of electrical emergency stop devices with mechanical latching function is not considered to be a relevant hazard.NOTE See also 9.2.5.4 of IEC 60204-1:2005.