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220KV及以下超高壓超純淨化學交聯聚乙烯絕緣料 XEJ-220
Ultra-purity Chemical Cross-Linkable PE Insulation Compound for EHV Power Cable (≤220KV) ...
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Product description 産品描述
Chemical cross-linkable PE insulating compound for EHV power cable which regard advanced LDPE resin as the main material, adds antioxidant, cross-linking agent and other accessory addhesives, is manufactured by advanced closed extruder. It has excellent extrusion property and physical property, impurity content is controlled within limits. This product is mainly used for the insulation of High voltage &EHV cross-linking cables. It is applicable for 220KV and below cross-linking cables.
電力電纜用可化學交聯超高壓超純淨聚乙烯絕緣料是以優質低密度聚乙烯樹脂爲主要原材料,加入抗氧劑、交聯劑等配合劑,采用先進的封閉式混煉裝置加工而成,它兼有良好的擠出性能和物理性能,雜質含量符合要求,專用于生産高壓、超高壓交聯電線電纜絕緣,本産品適用于220KV及以下交聯電線電纜。
 
Processing Indicator 加工工藝
Recommend to process with the PE extruder.
建議使用聚乙烯專用擠出機進行加工。


Model
牌號
Machine Barrel Temperature
機筒溫度
Molding Temperature
機頭溫度
XEJ-220 115-120℃ 118-120℃
 
Physical and Electrical Properties 物理和電氣性能
Item
試驗項目
Unit
單位
Standard Data
標准值
Density
密度
g/cm3 0.922±0.003
Tensile Strength
拉伸強度
MPa ≥17.0
Elongation at Break
斷裂伸長率
% ≥450
20℃Volume Resistivity
20℃體積電阻率
Ω·m ≥1.0×1014
20℃Dielectric Strength,50Hz
20℃介電強度, 50Hz
MV/m ≥30.0
20℃Dielectric Constant,50Hz
20℃介電常數, 50Hz
--- ≤2.3
20℃Dielectric Dissipation Factor,50Hz
20℃介質損耗因數, 50Hz
--- ≤0.0003
Impurity Content(Per 1.0Kg)
雜質含量(每1.0Kg)
100-250μm
250-625μm
>650 μm
 


 
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0
0
Air Aging Condition
熱空氣老化條件
135℃×168h
Tensile Strength Variation After Aging
拉伸強度變化率
% ±20
Elongation Variation After Aging
斷裂伸長變化率
% ±20
Hot Set Test Condition
熱延伸試驗條件
200℃×0.2MPa×15min
Hot Elongation
負荷下伸長率
% ≤75
Permanent Deformation After Cooling
冷卻後永久形變
% ≤5