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机械CE认证标准：-B类

EN ISO 14119:2013 Safety of machinery — Interlocking devices associated with guards — Principles for design and selection 机械安全-与防护装置有关的联锁装置-设计和选择原则

1 Scope范围

This International Standard specifies principles for the design and selection independent of the nature of the energy source of interlocking devices associated with guards. 上海郜盟提示本国际标准规定了与防护装置有关的联锁装置的设计和选择原则，而不考虑其能源的性质。

This International Standard covers the parts of guards which actuate interlocking devices. 本国际标准涵盖了驱动联锁装置的防护罩部件。

NOTE ISO14120 specifies general requirements for the design and construction of guards provided primarily to protect persons from mechanical hazards. The processing of the signal from the interlocking device to stop and immobilize the machine is dealt with in ISO 13849-1 or IEC 62061. 郜盟国际认证提醒注:ISO14120规定了主要用于保护人员免受机械危害的防护装置的设计和建造的一般要求。来自联锁装置的停止和固定机器的信号处理在ISO 13849-1或IEC 62061中进行了处理。

This International Standard does not necessarily provide all the specific requirements for trapped key systems. 本标准并不一定规定困匙系统的所有具体要求。

This International Standard provides measures to minimize defeat of interlocking devices in a reasonably foreseeable manner. 本标准规定了以合理可预见的方式尽量减少联锁装置故障的措施。

2 安全门开关/安全门锁示例