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Applications:
Provide insulation and protection for various incoming and outgoing connection points of insulation switches, vacuum switches and fuses.
Features:
1.Suitable for 1-35KV.
2.Radiation cross linking materials (Polyolefin or EPDM rubber ).
3.Quick and easy installation.
4.Avoid short circuit and leakage.
5.Facilitate routine inspection and maintenance.
6.Resistant to moisture and dust.
7.Meet RoHS Stand.
8.Customized.
Technical properties:
Properties |
Polyoelfin |
EPDM |
Test methods |
Tensile strength |
≥10.0Mpa |
≥10.0Mpa |
ASTM D 2671 |
Elongation at break |
≥300% |
≥1000% |
ASTM D 2671 |
Thermo aging elongation at break |
≥6.9Mpa |
≥9Mpa |
90℃ /70hrs |
Thermo aging tensile strength |
≥150% |
≥500% |
90℃ /70hrs |
Heat shock |
No cracking |
No cracking |
JB7829 |
Oxygen index |
≥28 |
- |
GB/T 2406 |
Dielectric strength |
≥20KV/mm |
≥30KV/mm |
IEC 243 |
Dielectric constant |
2~3 |
2~3 |
IEC 250 |
Volume resistance |
≥1.0x 1014Ω•cm |
≥4.5x 1014Ω•cm |
IEC 93 |
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