The product implements the performance requirements of EPDM rubber in the national standard GB/T7594-87, and is applicable to the insulation layer of ordinary rubber cable, mining cable, UCPJB, UCPJR, wind energy cable, etc. Its mechanical and electrical properties are as follows table:
| Pilot projects | unit | YXJ-10A | YXJ-30A | YXJ-30A(high pressure) | |||
| standard requirement | Typical value | standard requirement | Typical value | standard requirement | Typical value | ||
| Tensile Strength | N/mm² | ≥5.0 | 7.0 | ≥5.0 | 8.6 | ≥4.2 | 9.5 |
| Elongation at break | ％ | ≥250 | 280 | ≥250 | 290 | ≥200 | 240 |
| Air box heat aging | condition | 5±2℃×240h | 80±2℃×240h | 135±2℃×168h | |||
| Tensile strength change rate | ％ | ≤±30 | -10.8 | ±30 | -10.1 | ±30 | ＋0.5 |
| Rate of change in elongation at break | ％ | ≤±30 | -8 | ±30 | -10.2 | ±30 | -14.8 |
| Thermal extension test | condition | 250±3℃×15min×0.2Mpa | |||||
| Elongation under load | ％ | ≤100 | 60 | ≤175 | 60 | ≤175 | 65 |
| Permanent deformation after cooling | ％ | ≤25 | 17 | ≤15 | 13 | ≤15 | 13 |
| 20 ° C volume resistivity | Ω.cm | ≥1.0×1013 | 6.0×1014 | ≥1.0×1014 | 2×1015 | ≥1.0×1015 | 5×1015 |
| Dielectric strength | MV/m | 26 | 28 | 28 | |||
| Ozone resistance | condition | 25±2℃×24h×0.025~0.03% | |||||
| result | No crack | No crack | |||||
EPDM insulation rubber 2019-8-30 本文被阅读 2416 次
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Contact: Manager Zhang
Mobile: 18660668323
Landline: 0536-7371003
Company Address: Hanting District, Weifang City, Shandong ProvinceLingang Logistics Industrial Park South Road
