In Dongguan, South China's Guangdong Province, overload protection failure is being blamed for last Friday's elevator plunge that injured 20 people.
在中国南方的广东省东莞市，超载保护失效被认为是上周五致20人受伤的电梯坠落事故的原因。
After some non-famous elevator repairs, the original brand hybrid device, or to stop the operation of brand lift. the failure of existing safety problems.
有一部分非名牌电梯经过维修后，原器件品牌混杂，或者名牌电梯带病运行，存在发生故障的安全隐患。
It focuses on the role of safety gear of elevator, intro-duces safety gear types and working principle of safety gear, as well as the general test methods, common safety gear failure, treatment.
着重介绍了安全钳在电梯中所起的作用，安全钳的结构、种类及安全钳的工作原理以及安全钳的一般检验方法，安全钳常见的故障、处理方法。
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