广东电力2018，Vol.31Issue(2)：125-129,5.DOI:10.3969/j.issn.1007-290X.2018.002.020
适用于广州地区的10kV配电电缆载流量计算系数法
Correction Factor Method of Calculation on Ampacity of 10 kV Distribution Cable Adapting to Guangdong Area
摘要
Abstract
The correction factor method is mostly adopted to calculate ampacity of 1 0 kV distribution cable,but correction factor method in IEC standard,GB standard and used by power supply bureaus for ampacity calculation are different.In or-der to reasonably and safely dispatch cable load,it is necessary to study the correction factor method for ampacity calcula-tion.By monitoring local soil temperature and testing soil thermal resistance factor,reference condition including air tem-perature,soil temperature and soil thermal resistance for ampacity calculation in Guangzhou area were determined respec-tively as 40 ℃,30 ℃ and 1.0 K·m/W.Reference ampacity,types and values of correction factor method were determined by comparing each standard values and software calculation values.Research results indicate reference ampacity and correc-tion factors in IEC standard are still adapting to Guangzhou area but reference conditions should be reselected.关键词
配电电缆/载流量/系数法/基准条件/修正系数Key words
distribution cable/ampacity/correction factor method/reference condition/correction factor分类
信息技术与安全科学引用本文复制引用
周庆辉,王晓兵,周凡珂,张煌,郑文坚,牛海清..适用于广州地区的10kV配电电缆载流量计算系数法[J].广东电力,2018,31(2):125-129,5.基金项目
广州供电局有限公司科技项目(082300KK52150004) （082300KK52150004）
