施工现场漏电保护器的配置技术

Configuration Technology of Leakage Protectors at Construction Site

施工现场的用电环境一般比较差,使用的设备、线路本身安全隐患比较多,流动性、重复性、临时性较强,参加施工的用电人员甚至管理人员的素质参差不齐,在施工现场强制采用TN-S三相五线制供电方式的目的就是为了保障施工现场用电的安全及加强对用电的管理。各级漏电保护器是TN-S供电系统中最关键的保护设备,施工现场所具有的特殊性,总是造成各级漏电保护器频繁跳闸。这不仅严重影响了施工现场的正常施工,而且使施工现场用电的安全无法得到有效的保障。本文通过在施工现场对施工用电的管理经历,对施工现场漏电保护器频繁跳闸的原因进行了详细的分析,以便为正常的施工创造较好的供电条件。

In view of the poor environment in general, security risks of equipments and lines are more and the qualities of the electricity staff and the managers are different. At the construction site TN-S three-phase five-wire power supply is designed to protect the security of electricity and strengthen the management of electricity. Leakage protectors at all levels are the most critical protection equipments in TN-S power supply system. Due to the special nature in the actual construction, the leakages protectors always trip frequently. This is not only seriously affected the normal working, but also the safety of electricity. In this paper, through the management of electricity and experience, the reasons for tripping are analyzed in details and the purpose is to create a better power supply conditions for the construction.