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Mining, ship 90℃ Ethylene propylene insulated rubber Insulating rubber material implement the standards of MT818 mining coal cable, obey the regulation of XJ-30A in the GB7594.8-87.the product also meet the…
Mining, ship 90℃ Ethylene propylene insulated rubber
Insulating rubber material implement the standards of MT818 mining coal cable, obey the regulation of XJ-30A in the GB7594.8-87.the product also meet the rules of ship cable insulated material EPR in the IEC60092-351:2004.
This series of product mainly falls into the catalogue, YHJ-30A (8.7/10kV or below ), YHJ-30Z (3.6/6kV or below), YHJ-30D (0.66/1.14kV or below ) etc.
Performance comparison
| Test item | Unit | MT818 GB7594.8-87 | YHJ-30A Test value | ||
| Before ageing | Tensile strength | Intermediate values | MPa | ≥6.5 | 8.2 |
| Elongation at | Intermediate values | % | ≥200 | 330 | |
| Heat ageing test of air box | Aging conditions | Temperature | ℃ | 135±2 | |
| Time | h | 7×24 | |||
| Tensile strength | Intermediate values | MPa | 9 | ||
| Rate of change | % | ≤±30 | 10 | ||
| Elongation at | Intermediate values | % | 275 | ||
| Rate of change | % | ≤±30 | -6 | ||
| Air bomb ageing test | Test conditions | Temperature | ℃ | 127±1 | |
| Time | h | 40 | |||
| Tensile strength | Rate of change | % | ≤±30 | 15 | |
| Elongation at | Rate of change | % | ≤±30 | -10 | |
| Hot set test | Test conditions | Temperature | ℃ | 250±3 | |
| Load time | min | 15 | |||
| Mechanical stress | MPa | 0.2 | |||
| Load elongation | % | ≤175 | 25 | ||
| Permanent deformation after cooling | % | ≤15 | 10 | ||
| Ozone resistance test
|
Test conditions | Temperature | ℃ | 25±2 | |
| Time | h | 24 | |||
| Ozone concentration | % | 0.025~0.030 | |||
| Test results | No cracks | No cracks | |||
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+8613394156633
+8618753175317
+8613364256389
carolyn.shi@resterchem.com
18753175317,13364256389,18842852758