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Applications:
Widely used in substation protection works and railway catenary system, a significant effect in the cross-lines.
Features:
Design ease of installation. Use silicon rubber material, anti-aging, corrosion resistance, with good resistance to corona resistance, high temperature performance, especially suitable for the protection of the bare wire.
Technical properties:
Properties |
Test method |
Typical data |
Electical strength Test |
GB/T1408.1-2006 |
≥20kV/mm |
Dielectric constant |
GB/T1409-2006 |
2-3 |
Volume Resistivity |
GB/T1410-2006 |
≥1X1014Ω•cm |
Shore Hardness |
GB/T 531 |
70 A |
Before heat ageing |
||
Tensile Strength |
GB/T 528 |
≥4.0Mpa |
Elongation at break |
GB/T 528 |
≥200% |
After Heat ageing(180℃,7d) |
||
Tensile strength change |
GB/T 528 |
±30% |
Elongation change |
GB/T 528 |
±30% |
Low Temperature Elongation |
GB/T 2951.4-1997 |
≥20% |
Low Temperature Flexiblity |
UL224-2004 |
No cracks |
High Temperature Crack Resistance(155℃,2h) |
GB/T2951.61997 |
No cracks |
Dimensions:
Voltage-Ratings
Voltage(kV) |
≤10kV |
≤35kV |
Thickness |
2.0±0.3mm |
3.0±0.4mm |
Size |
Suitable conductor section |
Max. conductor diameter |
8 |
16 |
6 |
10 |
25-35 |
8 |
12 |
50 |
10 |
14 |
70 |
12 |
16 |
95 |
14 |
18 |
120 |
15 |
20 |
150 |
17 |
22 |
185 |
19 |
24 |
240 |
22 |
28 |
300 |
25 |
32 |
400 |
29 |
35 |
500 |
32 |
38 |
630 |
35 |
Molypoly is one of the best and leading silicone rubber overhead line cover manufacturers and suppliers, who can bring you high-quality silicone rubber overhead line cover from our professional factory. Customized service is also offered as you may need.
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