IC697MDL750
：/，QQ：1982497648
摘要:本文针对化工厂电力线路、电缆线路、车间配电线路的安全检查,变压器、高、低压配电柜、发电机等电气设备的安全检查管理,阐述了具体要检查记录哪些数据,有哪些判断方法等。
关键词:电气设备;电力线路;电缆;变压器;配电柜;发电机;安全管理
1电力线路的安全检查
电力线路是电力系统的重要组成部分,担负着输送电能的重要任务.但目前在部分工厂中,往往对电力线路的安全检查和运行维护重视不够,导致个别区段的电力线路的安全性降低,增大了发生电气事故的可能性.因此,加强工厂电力线路的安全检查是非常必要的。
1架空线路的安全检查
对厂区架空线路,一般要求每月进行1次安全检查。如遇大风大雨及发生故障等特殊情况时,还需临时增加安全检查次数。架空线路的安全检查应重点检查以下项目:
1.1电线杆子有无倾斜,变形,腐朽,损坏及基础下沉等现象。
1.2沿线路的地面是否堆放有易燃易爆和强腐蚀性物质。
1.3沿线路周围,有无危险建筑物。应尽可能保证在雷雨季节和大风季节里,这些建筑物不致对线路造成损坏。
1.4线路上有无树枝,风筝等杂物悬挂。
1.5拉线和板桩是否完好,绑托线是否紧固可靠。
1.6导线的接头是否接触良好,有无过热发红,严重老化,腐蚀或断脱现象;绝缘子有无污损和放电现象。
1.7避雷接地装置是否良好,接地线有无锈断情况。在雷雨季节到来之前,应重点检查。
2电缆线路的安全检查
电缆线路一般是敷设在地下的,要做好电缆的安全运行与检查工作,就必须全面了解电缆的敷设方式,结构布置,走线方向及电缆头位置等。对电缆线路一般要求每季度进行1次安全检查,并应经常监视其负荷大小和发热情况。如遇大雨,洪水等特殊情况及发生故障时,还须临时增加安全检查次数。电缆线路的安全检查应重点检查以下项目:
2.1电缆终端及瓷套管有无破损及放电痕迹。对填充电缆胶(油)的电缆终端头,还应检查有无漏油溢胶现象。
2.2对明敷的电缆,应检查电缆外表有无锈蚀,损伤,沿线挂钩或支架有无脱落,线路上及附近有无堆放易燃易爆及强腐蚀性物质。
2.3对暗设及埋地的电缆,应检查沿线的盖板和其它覆盖物是否完好,有无挖掘痕迹,路线标是否完整。
2.4电缆沟内有无积水或渗水现象,是否堆有杂物及易燃易爆物品。
2.5线路上各种接地是否良好,有无松动,断股和锈蚀现象。
3车间配电线路的安全检查
要搞好车间配电线路的安全检查工作,也必须全面了解车间配电线路的布线情况,结构形式,导线型号规格及配电箱和开关的位置等,并了解车间负荷的大小及车间变电室的情况。对车间配电线路,有专门的维护电工时,一般要求每周进行1次安全检查,其检查项目如下:
3.1检查导线的发热情况。
3.2检查线路的负荷情况。
3.3检查配电箱,分线盒,开关,熔断器,母线槽及接地接零装置等的运行情况,着重检查母线接头有无氧化,过热变色和腐蚀等情况,接线有无松脱,放电和烧毛的现象,螺栓是否紧固。
3.4检查线路上及线路周围有无影响线路安全运行的异常情况。禁止在绝缘导线上悬挂物体,禁止在线路旁堆放易燃易爆物品。
3.5对敷设在潮湿,有腐蚀性物体的场所的线路,要定期对绝缘进行检查,绝缘电阻一般不得低于0.5ΜΩ。
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