YJVP22-1.8/3KV 3*2.5屏蔽电力电缆

YJVP22-3KV 3*25屏蔽电力电缆

交联聚乙烯绝缘电力电力，具有高机械强度、耐环境应力好、优良的电气性能和耐化学腐蚀等特点，产品重量轻，结构简单，使用方便。本产品适用于额定电压0.6/1kV输配电系统，供输配电能之用。
阻燃型电缆的主要特点是电缆不易着火，或着火时延燃仅局限在一定范围内，适用于电缆敷设密集程度比较高的发电站、地铁、隧道、高层建筑、大兴工矿企业、油田、煤矿等场所。
耐火型电缆的主要特点是除了能在正常的工作条件下传输电力外，电缆在着火燃烧时仍能保持一定时间的正常运行。适用于核电站、地铁、隧道、高层建筑等与防火安全和消防救生有关的场所。
 
XLPE insulated power cables, which has high mechanical robustness,good environmental stress, excellent electrical properties andchemical resistance characteristics, is simple in structure ,lightin weight and convenient in applicable. This product is suitablefor rated voltage of 0.6/1 kV power distribution system, fortransmission and distribution of electric energy use.
The main features of flame retardant cable is not easy to catchfire,or it can confine the  fire in some  limited area.There fore the cable is applicable to the places where the densityof cable laying is high,such as generating stations, subways,tunnels, high-rise buildings, large industrial and miningenterprises, oil field, coal mine and other places.
The fire-resistant cable is besides the power transmission undernormal condition, can continue operating normally for some timewhen it catches fire,so it is applicable to the place which isconcerned to the fires safety and fire rescue,such as nuclear powerplant,subway,tunnel,high-rise building and so on.
 
二、执行标准  Standards
 
GB12706或IEC 60502及相关的国内外标准。如：BS、VDE、JIS、AEIC等。
IEC60502 and GB12706 or the relevant domestic and internationalstandards. Such as: BS, VDE, JIS, AEIC and so on.
 
三、使用特性 Product features
 
1、电缆导体高允许工作温度：正常运行时90 ℃，短路时（大短路持续时间5 s）为250 ℃。
Max. admissible temperature for conductor：90 ℃ under normal runningcondition，250 ℃ during short circuit（max. duration not exceeding5s）.
 
2、电缆的敷设低温度为0℃，敷设时小弯曲半径为：
单芯电缆20（D+d）±5 %，mm
多芯电缆15（D+d）±5 %，mm
式中：D--电缆的实际外径，mm
d--电缆导体的实际外径，mm
产品型号及名称（见表4-1） Types of products（Table 4-1）
 V交联电缆结构示意图 0.6/1 kV XLPE cable schematic

0.6/1kV交联电缆结构包括单芯结构、二芯结构、三芯结构、四芯结构（含3＋1结构）、五芯结构（含4＋1，3＋2结构）等，分别见图1-13。