• XLPE绝缘材料
• 内外屏蔽材料
• 汽车线束绝缘材料
• 弹性体材料
• UL系列材料
• 通用PVC材料

Product description 产品描述和用途
SEJ90-1-KK(N) is one-step silane cross-linkable polyethylene insulation compound for low-voltage cables. It is a kind of insulations for medium-low voltage overhead cables through squeeze tube mold production process. Cables working voltage is 3KV and below, the highest working temperature is 90℃.
SEJ90-1-KK(N)是低压电线电缆用一步法硅烷交联聚乙烯绝缘料。主要用于通过挤管式模具生产的中低压架空电缆的绝缘。电线电缆工作电压为3KV及以下，最高工作温度为90℃。
 
Processing Indicator 加工工艺  
Recommend to process with the PE extruder
建议使用聚乙烯专用挤出机进行加工。

Model 牌号	Machine Barrel Temperature 机筒温度	Molding Temprature 模头温度
SEJ90-1-KK(N)	160-200℃	215-220℃

 
 
Physical and Electrical Properties 物理和电气性能

Item 试验项目				Unit 单位	Technical requirements 技术要求
Density 密度				g/cm3	0.922±0.005
Tensile Strength 拉伸强度				MPa	≥13.5
Elongation at Break 断裂伸长率				%	≥300
Brittle Temperature with Low Temperature 低温脆化温度				℃ 失效数	-76 ≤15/30
20℃Volume Resistivity 20℃体积电阻率				Ω·m	≥1.0×1014
20℃Dielectric Strength,50Hz 20℃介电强度, 50Hz				MV/m	≥25.0
20℃Dielectric Constant,50Hz 20℃介电常数, 50Hz				----	≤2.35
Air Aging Condition 热空气老化条件 135±2℃×168h		Tensile Strength Variation After Aging 拉伸强度变化率		%	±20
		Elongation Variation After Aging 断裂伸长变化率		%	±20
Artificial  Weathering Aging 人工气候老化0-1008h		Tensile Strength Variation After Aging 拉伸强度变化率		%	±30
		Elongation Variation After Aging 断裂伸长率变化率		%	±30
Artificial Weathering Aging 人工气候老化504-1008h		Tensile Strength Variation After Aging 拉伸强度变化率		%	±30
		Elongation Variation After Aging 断裂伸长率变化率		%	±30
Hot Set Test Condition 热延伸试验条件 200℃×0.2MPa×15min	1mmthick 95 ℃ boiled 2 hours test 一毫米厚95℃水煮 2小时测试		Hot Elongation 负荷下伸长率	%	≤100
			Permanent Deformation after Cooling 冷却后永久形变	%	≤5