携带型短路接地线截面积选择与热稳定校核  

Selection of cross-sectional area and thermal stability verification of portable short-circuit grounding wire

作　　者：陈敏 CHEN Min(Wanan Hydroelectric Power Plant of National Energy Group Jiangxi Electric Power Co.,Ltd.,Jian,Jiangxi 551408)

机构地区：[1]国家能源集团江西电力有限公司万安水力发电厂,江西吉安343800

出　　处：《水电站机电技术》2023年第8期69-71,127,139,共5页Mechanical & Electrical Technique of Hydropower Station

摘　　要：携带型短路接地线作为是一项重要的电气安全技术措施,是保护检修人员的一道安全屏障,当短路电流通过接地线时,其热效应不应超过允许值,为保证接地线在短路故障发生时满足电流通过要求,有必要定期对其热稳定进行校核,并选择正确合格的接地线,此校验方法同样适用于其它接地装置。As an important electrical safety technical measure,portable short-circuit grounding wire is a safety barrier for maintenance personnel.When short-circuit current passes through the grounding wire,its thermal effect should not exceed the allowable value.To ensure that the grounding wire meets the current passing requirements when a short-circuit fault occurs,it is necessary to check the thermal stability of wires regularly and select the correct and qualified grounding wire.This verification method is also applicable to other grounding devices.

关 键 词：接地线 热稳定 短路电流 

分 类 号：TM206[一般工业技术—材料科学与工程]