永进电缆集团有限公司

产品标准 Standard of product
本产品按GB/T12527-2008标准生产，同时还可根据用户需要按国际电工委员会推荐的IEC标准、英国标准、德国标准和美国标准生产。 
The product is manufactured according to the standard of GB/T12527-2008. At the same time ,it can also be manufactured according to IEC,BS,DIN and AEIC upon request.

使用特性Operating Characterastics 
额定电压为1KV 
Rated Voltage:1kv

电缆导体允许的长期最高工作温度 
Max permissable continuous operating temperature of conductor 
聚氯乙烯架空电缆：70℃ 
PVC insulated aerial cable: 70℃
聚乙烯绝缘架空电缆：75℃ 
PE insulated aerial cable: 75℃
交联聚乙烯绝缘架空电缆：90℃ 
XLPE insulated aerial cable:90℃
短路时（最长持续时间不超过5S）电缆导体的最高温度应不超过： 
Max temperature of the conductor during short-circuit (5s maximum duration) shall not exceed : 
聚氯乙烯绝缘架空电缆：160℃ 
PVC insulated aerial cable: 160℃ 
聚乙烯绝缘架空电缆：130℃ 
PE insulated aerial cable: 130℃ 
交联聚乙烯架空电缆：250℃ 
XLPE insulated aerial cable: 250℃ 
电缆敷设时环境温度应不低于：-20℃ 
The ambient temperature under installation should not be lower than -20℃

电缆的允许弯曲半径 
电缆外径（D）小于25㎜，应不小于电缆外径的4倍 
电缆外径（D）等于或大于25㎜，应不小于电缆外径的6倍 
The bending radius of cable are recommended as follow:
When the diameter of cable is less than 25㎜:not less than 4 times of the cable’s OD
When the diameter of cable is more than and including 25mm: not less than 6 times of the cable’s OD
当电缆使用交流系统时，电缆的额定电压至少应等于该系统的额定电压；当电缆适地直流系统时，该系统的额定电压应不大于电缆额定电压的1.5倍 
When the cable are used in the alternative current systerm,rated voltage of cables should be at least equal to the rated voltage of the system;when the cables are used in direct current system, rated voltage should not exceed than 1.5 times of the rated voltage of the cables
不同环境温度下载流量修正系数 
Correction factor of current rating under different ambient temperature