Description and Application 產品描述和用途
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分別是輻照交聯低煙無鹵內絕緣料，外絕緣和護套料，產品主要用于制作K1，K3核電用電纜，材料不僅具有優良的物理機械性能，絕緣性能以及加工性能，更為突出的是其具有卓越的耐輻照性和耐熱老化性。根據阿累尼烏斯方程推斷，本產品符合90℃條件60年壽命的要求。
Processing Indicator 加工工藝
Recommend to use special screw for low-smoke halogen-free compound with L/D=20-25.
采用低煙無鹵專用螺桿，長徑比L/D=20-25。
Model
牌號 |
Machine Barrel Temperature
機筒溫度 |
Molding Temprature
機頭溫度 |
| FEJ960/FEJW960/FEHW960 |
130-160℃ |
150-170℃ |
Physical and Electrical Properties 物理及電性能指標
Item
試驗項目 |
Unit
單位 |
Specification
技術要求 |
| FEJ960 |
FEJW960 |
FEHW960 |
Density
密度 |
g/cm3 |
≤0.94 |
≤1.6 |
≤1.5 |
Tensile Strength
抗張強度 |
MPa |
≥（12.0 ）15.0 |
≥（7.0）10.0 |
≥（8.0）10.0 |
Elongation at Break
斷裂伸長率 |
% |
≥（400）300 |
≥（250）200 |
≥（200）150 |
Aging Conditions
老化條件 |
/ |
（135±2）℃×240 h |
Changing rate of Tensile Strength
抗張強度變化率 |
％ |
±20 |
±20 |
±25 |
Changing Rate if Elongation
斷裂伸長率變化率 |
％ |
±20 |
±20 |
±25 |
Hot Set Test
熱延伸試驗200℃×0.2MPa×15min |
Hot Elongation
負荷下伸長率 |
% |
≤175 |
≤175 |
≤175 |
Permanent Deformation after Cooling
冷卻后永久形變 |
% |
≤15 |
≤15 |
≤15 |
| 絕緣體積電阻率(1kV，20℃) |
Ω·m |
≥1×1013 |
≥5×1012 |
≥5×1012 |
Brittle Temperature With
Impact
沖擊脆化溫度 |
℃ |
-40 |
-40 |
-40 |
Dielectric Strength
介電強度(1kV，20℃) |
kV/mm |
≥28 |
≥20 |
≥18 |
Determination of Halogen Acid Gas
鹵酸氣體含量測定 |
mg/g |
≤5 |
≤5 |
≤5 |
PH Value
PH值 |
/ |
≥5 |
≥4.3 |
≥4.3 |
Conductivity
電導率 |
μS/mm |
≤5 |
≤5 |
≤10 |
Smoke Density
煙密度 |
No-flame無 焰 |
% |
/ |
≤200 |
≤200 |
| Flame Mode有 焰 |
% |
≤190 |
≤190 |
≤190 |
Toxicity Index
毒性指數 |
/ |
≤2.5 |
≤2.5 |
≤2.5 |
Oxygen Index
氧指數 |
% |
/ |
≥29 |
≥28 |
UV-resistant Test
耐紫外線試驗 |
h |
/ |
/ |
≥720 |
Material Life
材料壽命 |
年 |
≥60 |
≥60 |
≥60 |
1. Suggested irradiation dose:12-15 mega-tera. Thermal extension should be controlled at 30～40%。
建議的輻照劑量為：12-15兆拉, 熱延伸控制在30%～40%。
2. The data in ( ) is taken before irradiation. （）中的數據為，輻照之前的數據。
Attentions 注意事項：
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，材料一經開封，建議12小時之內用完。
2）Please ensure the screw, barrel, hopper are thoroughly cleaned before operation. Avoid bringing impurities while processing.
加工前確保螺桿、機筒、加料斗徹底清理干凈，加工過程中嚴禁帶入雜質。
3）If you need a faster extrusion. Please accelerate screw speed gradually to avoid inadequate plasticizing which may cause rough surface of the cables.
如果要快速擠出時，請慢慢逐漸加快螺桿轉速，以免塑化不良，電纜表面毛糙。
