Description and Application 产品描述和用途
FEJ960, FEJW960, FEHW960 are respectively the internal insulation, external insulation and jacketing of irradiation cross-linkable low-smoke halogen-free insulation compounds. They are mainly used for K1, K3 nuclear power cables. Those compounds not only have excellent mechanical properties, insulation properties and processing properties, but also irradiation-resistant and anti-aging properties. According to The Arrhenius Equation, this product can reach 90℃and 60-year service life.
FEJ960，FEJW960，FEHW960分别是辐照交联低烟无卤内绝缘料，外绝缘和护套料，产品主要用于制作K1，K3核电用电缆，材料不仅具有优良的物理机械性能，绝缘性能以及加工性能，更为突出的是其具有卓越的耐辐照性和耐热老化性。根据阿累尼乌斯方程推断，本产品符合90℃条件60年寿命的要求。
Processing Indicator 加工工艺
Recommend to use special screw for low-smoke halogen-free compound with L/D=20-25.
采用低烟无卤专用螺杆，长径比L/D=20-25。
Model
牌号 |
Machine Barrel Temperature
机筒温度 |
Molding Temprature
机头温度 |
| FEJ960/FEJW960/FEHW960 |
130-160℃ |
150-170℃ |
Physical and Electrical Properties 物理及电性能指标
Item
试验项目 |
Unit
单位 |
Specification
技术要求 |
| FEJ960 |
FEJW960 |
FEHW960 |
Density
密度 |
g/cm3 |
≤0.94 |
≤1.6 |
≤1.5 |
Tensile Strength
抗张强度 |
MPa |
≥（12.0 ）15.0 |
≥（7.0）10.0 |
≥（8.0）10.0 |
Elongation at Break
断裂伸长率 |
% |
≥（400）300 |
≥（250）200 |
≥（200）150 |
Aging Conditions
老化条件 |
/ |
（135±2）℃×240 h |
Changing rate of Tensile Strength
抗张强度变化率 |
％ |
±20 |
±20 |
±25 |
Changing Rate if Elongation
断裂伸长率变化率 |
％ |
±20 |
±20 |
±25 |
Hot Set Test
热延伸试验200℃×0.2MPa×15min |
Hot Elongation
负荷下伸长率 |
% |
≤175 |
≤175 |
≤175 |
Permanent Deformation after Cooling
冷却后永久形变 |
% |
≤15 |
≤15 |
≤15 |
| 绝缘体积电阻率(1kV，20℃) |
Ω·m |
≥1×1013 |
≥5×1012 |
≥5×1012 |
Brittle Temperature With
Impact
冲击脆化温度 |
℃ |
-40 |
-40 |
-40 |
Dielectric Strength
介电强度(1kV，20℃) |
kV/mm |
≥28 |
≥20 |
≥18 |
Determination of Halogen Acid Gas
卤酸气体含量测定 |
mg/g |
≤5 |
≤5 |
≤5 |
PH Value
PH值 |
/ |
≥5 |
≥4.3 |
≥4.3 |
Conductivity
电导率 |
μS/mm |
≤5 |
≤5 |
≤10 |
Smoke Density
烟密度 |
No-flame无 焰 |
% |
/ |
≤200 |
≤200 |
| Flame Mode有 焰 |
% |
≤190 |
≤190 |
≤190 |
Toxicity Index
毒性指数 |
/ |
≤2.5 |
≤2.5 |
≤2.5 |
Oxygen Index
氧指数 |
% |
/ |
≥29 |
≥28 |
UV-resistant Test
耐紫外线试验 |
h |
/ |
/ |
≥720 |
Material Life
材料寿命 |
年 |
≥60 |
≥60 |
≥60 |
1. Suggested irradiation dose:12-15 mega-tera. Thermal extension should be controlled at 30～40%。
建议的辐照剂量为：12-15兆拉, 热延伸控制在30%～40%。
2. The data in ( ) is taken before irradiation. （）中的数据为，辐照之前的数据。
Attentions 注意事项：
1）The compound should be dried before using if the package is broken. Once package is open, recommend to run out within 12 hours.
原料破包需烘干后才能使用，材料一经开封，建议12小时之内用完。
2）Please ensure the screw, barrel, hopper are thoroughly cleaned before operation. Avoid bringing impurities while processing.
加工前确保螺杆、机筒、加料斗彻底清理干净，加工过程中严禁带入杂质。
3）If you need a faster extrusion. Please accelerate screw speed gradually to avoid inadequate plasticizing which may cause rough surface of the cables.
如果要快速挤出时，请慢慢逐渐加快螺杆转速，以免塑化不良，电缆表面毛糙。
