The Silicone Rubber Overhead Line Insulation Sleeve is highly resistant to aging, erosion and corona. It can provide protection against electrical outages caused by incidental contact from tree branches or wildlife. Especially suitable for the substation protection works and railway catenary.
Features:
Made of silicone rubber, high temperature performance
High resistance to aging and erosion
Providing insulation for catenaries, droppers and conductors against contact from trees or wildlife
Simple and fast installation, widely used in emergency repairs or temporarily insulation protection of equipment.
Dimension:
|
Cross Section of Stranded Wire
|
O.D. of Stranded Wire
|
Cover Dia.(mm)
|
Cross Section of Steel Core Strande
|
O.D. of Steel Core Stranded Wire
|
Cover Dia.(mm)
|
|
16mm2
|
5.10mm
|
Φ8
|
16mm2
|
7.60mm
|
Φ10
|
|
25mm2
|
6.54mm
|
Φ10
|
25mm2
|
9.20mm
|
Φ12
|
|
35mm2
|
7.50mm
|
Φ10
|
35mm2
|
10.50mm
|
Φ14
|
|
50mm2
|
9.00mm
|
Φ12
|
50mm2
|
12.00mm
|
Φ16
|
|
70mm2
|
10.80mm
|
Φ14
|
70mm2
|
14.30mm
|
Φ18
|
|
95mm2
|
12.50mm
|
Φ16
|
95mm2
|
16.50mm
|
Φ20
|
|
120mm2
|
14.25mm
|
Φ18
|
120mm2
|
19.25mm
|
Φ24
|
|
150mm2
|
15.75mm
|
Φ20
|
150mm2
|
21.75mm
|
Φ24
|
|
185mm2
|
17.50mm
|
Φ22
|
185mm2
|
23.67mm
|
Φ28
|
|
240mm2
|
20.00mm
|
Φ24
|
240mm2
|
27.50mm
|
Φ32
|
|
300mm2
|
22.40mm
|
Φ28
|
300mm2
|
30.40mm
|
Φ35
|
|
400mm2
|
25.90mm
|
Φ32
|
400mm2
|
35.90mm
|
Φ42
|
|
500mm2
|
29.12mm
|
Φ35
|
500mm2
|
43.40mm
|
Φ48
|
|
630mm2
|
32.67mm
|
Φ38
|
630mm2
|
47.80mm
|
Φ52
|
|
Voltage(kV)
|
≤10KV
|
≤35KV
|
≤110KV
|
≤220KV
|
|
Thickness
|
2.3±0.3mm
|
3.5±0.4mm
|
5.0±0.5mm
|
7.0±1.0mm
|
Performance:
|
No.
|
Properties
|
Unit
|
Standard Data
|
Test Results
|
|
1
|
Shore Hardness
|
A
|
≥50
|
65
|
|
2
|
Tensile Strength
|
MPa
|
≥9.0
|
15
|
|
3
|
Elongation at break
|
%
|
≥200
|
282
|
|
4
|
Thermal Aging (100℃, 168h)
|
|
Shore Hardness change
|
A
|
-5 ~ +10
|
3.5
|
|
Tensile Strength change
|
%
|
＜25
|
12.7
|
|
Elongation at break change
|
%
|
＜40
|
18
|
|
5
|
Thermal Aging (70℃, 48h)
|
|
Resilience (Da)
|
%
|
Grade 3: 50%, Da≤60
|
31.5
|
|
6
|
Hardness Changes
|
-20℃~0℃
|
≤10
|
5.1
|
|
0℃~23℃
|
≤10
|
0.2
|
|
23℃~70℃
|
≤10
|
2.7
|
|
7
|
Low Temperature Crack Resistance (-50℃)
|
|
No cracking
|
No cracking
|
|
High Temperature Crack Resistance(220℃)
|
|
No cracking
|
No cracking
|
|
8
|
Volume Resistivity
|
Ω·cm
|
≥1.1×1013
|
1.5×1013
|
|
9
|
Breakdown Strength
|
kV/mm
|
≥10
|
18
|
|
10
|
Surface resistivity
|
Ω
|
＜2.0
|
1.2
|
|
11
|
Ozone aging resistance
|
500pphm,tensile 20% 40℃ 48h
|
No cracking on appearance
|
No cracking on appearance
|
