无机房电梯主回路封星技术的风险分析

Risk Analysis of the Short-circuiting Technique of Machine Roomless Elevator Main Circuit

主回路的封星是无机房电梯的一项辅助的重要安全保护方式。简要介绍了封星回路,并对手动操作封星、高速状态封星、辅助触点封星、两相封星等4种封星方式进行了风险分析,提出了改进措施。

The short-circuit of the main circuit is an important safety protection for the machine roomless elevator.The short-circuit is briefly introduced and the risk of the four short-circuit methods are analyzed,which are manual operation,high-speed state,auxiliary contact and two-phase.Finally some improvement measures are put forward.