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作为地铁“心脏”的接触网系统,承担着为列车提供动力的主要任务,其在整个地铁运营系统中的重要地位不言而喻。一旦供电系统发生故障引起供电不稳定或供电中断,会直接影响地铁运营安全,因此,接触网系统的安全运行是保障地铁正常、安全运营的基本条件。将其危险有害因素进行分级及管理,在保证安全的前提下可提高管理效率,为减少事故发生、降低事故损害后果奠定坚实基础。用于危险有害因素分级的方法主要有预先危险性分析法、故障类型
As the catenary system of the subway “heart”, it undertakes the main task of providing power for trains. Its important position in the entire subway operation system is self-evident. Once the power supply system failure caused by instability in power supply or power supply interruption, will directly affect the safety of subway operation, therefore, the safe operation of catenary system is to protect the normal operation of the subway, the basic conditions for safe operation. The classification and management of hazardous and harmful factors can improve the management efficiency under the premise of ensuring safety and lay a solid foundation for reducing accidents and reducing the consequences of accidental damages. The methods used to classify the dangerous and harmful factors mainly include the method of pre-risk analysis and the type of fault