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Applications:
Provide insulation and protection for surger arrester.
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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