​过氧化物交联聚乙烯绝缘料

Peroxide cross-linked polyethylene insulation materials

过氧化物交联聚乙烯绝缘料

特点及用途
特点:采用专用电缆材料,原料纯净,生产过程中温度不超过110度,加工性能稳定, 产品具有很好的热氧化稳定性;
用途:用作10~35Kv级中压电力电缆、架空电缆的绝缘层。
 
包装运输及贮存
包装:PE内膜袋防潮,纸箱包装,下垫木质托盘,包装500公斤/箱;
运输:小心轻放,以防破包;
贮存:打开包装后应立即使用,不必进行预干燥;
产品未用完,需密封,后续使用。
 
执行标准:JB/T10437—2004。

Peroxide cross-linked polyethylene insulation materials
Feature and Usage
l CharacterIstics: the special electric cable materials are adopted, the raw materials are pure, the temperature in the production process is not more than 110, and the processing performance is stable. The product is provided with good thermal oxidation stability;
l Application: used as the insulation layer of medium-voltage power cable and overhead cable in 10 ~ 35KV level.
 
Packaging, transportation and storage
Packaging: moisture prevantion for PE inner film bag , carton packaging,  wooden pallet cushioned underneath,  500 kg/ box for packaging;
 
Transportation :Handle with care to avoid breaking the bag;

Storage: immediately use after opening the package, it is unnecessary to carry out the pre-drying; If the product is not used completely, it is required to be sealed and used for subsequent use.
 
Executive Standard:JB/T10437—2004
 
 
性能指标
Performance Metrics

序号
No.
项目
Items
单位
Unit
标准要求
Standard Requirements
典型值
Typ.
1
拉伸强度
Stretch Str.
MPa
≥13.5
20.6
2
断裂伸长率
Elongation at failure
%
≥350
558
3
冲击脆化温度(-76℃)
Impact brittle temperature(-76℃)
失效数
Failure number
 

Nos.
 
≤15/30
 
0/30
4
空气热老化温度
Air thermal aging temperature
持续时间
Duration in
拉伸强度变化率
Variation of tensile strength
断裂伸长率变化率
Rate of change for elongation at breakage

h

135±2
168
±20
±20
 
 
+1   
+1
+6
5
热延伸200℃
Thermal extension 200 ℃
0.2MPa,15min
负荷下伸长率
Elongation under load
冷却后永久变形率
Permanent deformation rate after cooling
 
 

 
 
≤80
≤5
 
 
65
0
6
凝胶含量
Gel content
≥80
88
7
介质损耗因数50Hz,20℃
Dielectric dissipation factor 50Hz,20℃
 
≤5×10-4
2.6×10-4
8
相对介电常数50Hz,20℃
Relative permitivity 50Hz,20℃
 
≤2.35
2.20
9
体积电阻率,20℃
Volume resistivity, 20 ℃
Ω.m
≥1×1014
3.7×1014
10
介电强度
Dielectric strength
MV/m
≥25
38