Product description 產品描述
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凈聚乙烯絕緣料是以優質低密度聚乙烯樹脂為主要原材料，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，專用于生產高壓、超高壓交聯電線電纜絕緣，本產品適用于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℃ |
| Item 試驗項目 |
Unit 單位 |
Standard Data 標準值 |
|
| 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 |
個 個 個 |
0 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 冷卻后永久形變 |
% | ≤5 | |