高负荷运行，导体长时通流，而且柜体缺乏维护，导致柜体积灰严重，整体散热不良，配电室无、无空调降温设施，开关本体及导线高温运行，整体性能下降，寿命降低。设备及线路老化。连续长时间运行，核心部件未得到及时的保养、检测、更换，加速设备及线路老化，使用寿命降低。

The MNS low-voltage drawer cabinet operates under high load, with its conductors passing through for a long time, and the cabinet body lacks maintenance, resulting in severe ash in the cabinet volume, poor overall heat dissipation, lack of dehumidification and air-conditioning cooling facilities in the distribution room, and high temperature operation of the switch body and conductors, resulting in reduced overall performance and reduced service life. Aging of equipment and lines. During continuous long time operation, core components are not maintained, tested, and replaced in a timely manner, accelerating the aging of equipment and circuits, and reducing their service life.

应对措施

Countermeasures

抽屉柜中进出线导体应选用正规低压电缆或者带有绝缘热缩管包覆的铜排，并按照相关标准进行安装；配电室应确保开启设备监控系统，以便于调取、查阅设备运行状态。针对历史数据做好统计分析，并对标实际运行数据，及时发现异常并隐患。

The incoming and outgoing conductors in the drawer cabinet should be regular low-voltage cables or copper bars covered with insulated heat shrinkable tubes, and installed in accordance with relevant national standards; The power distribution room should ensure that the equipment monitoring system is turned on to facilitate access and review of equipment operation status. Conduct statistical analysis on historical data, benchmark actual operation data, timely detect anomalies and eliminate hidden dangers.

同时配电室应加强送排风系统的管理，送排风功率及效能应满足正常运行需求；配电室内的运行低压柜应定期进行质量排查，尤其针对内部开关、铜导线、插接件等核心部件，必要时进行更换。

At the same time, the power distribution room should strengthen the management of the air supply and exhaust system, and the power and efficiency of the air supply and exhaust should meet the requirements of normal operation; The operating low-voltage cabinet in the power distribution room should undergo regular quality inspections, especially for core components such as internal switches, copper conductors, connectors, and the like, and should be replaced if necessary.

配电室所带负载应进行分级分类并逐一进行标识，对非常重要及重要负荷应增加必要的保护装置，制定针对性运检计划并落地实施；定期组织运维人员及配电室管理人员进行有效的技能培训，比如配电室运维知识、突发异常紧急处理、防护等课题培训，并定期开展应急演练及实操考核，提升人员技能水平和应对突发事件的应变能力。

The loads carried in the distribution room should be classified and identified one by one. Necessary protective devices should be added for very important and important loads, and targeted operational inspection plans should be developed and implemented; Regularly organize effective skill training for operation and maintenance personnel and power distribution room management personnel, such as training on topics such as power distribution room operation and maintenance knowledge, emergency handling of sudden abnormalities, safety protection, etc., and regularly carry out emergency drills and practical assessment to comprehensively improve personnel's skill level and response ability to sudden events.

MNS低压抽屉柜是配电室低压系统的重要配电装置，通过此次事故希望能引起开关柜生产厂家的重视，应严格按照标准进行设计、生产和安装，作为电力用户也应该对设备进行定期检查、维护和保养，才能共同保证设备正常运行。更多相关产品事项就来我们网站咨询吧！

MNS low-voltage drawer cabinet is an important power distribution device in the low-voltage system of the power distribution room. Through this accident, we hope to attract the attention of the switch cabinet manufacturer. It should be designed, produced, and installed in strict accordance with national standards. As a power user, we should also regularly inspect, maintain, and maintain the equipment in order to jointly ensure the normal and safe operation of the equipment. For more product related matters, please visit our website http://www.aoyuanseed.com Consult!