Jiangsu, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available
MEI Awards

Red Silicone Rubber Overhead Line Cover, Overhead Conductor Animal Guard Cover, Silicon Rubber Protection Cover manufacturer / supplier in China, offering Volsun Insulating Silicone Rubber Cover, Black and Red X Patten Heat Shrink Thin Wall Tube, Red Heat Shrinkable Busbar Insulation Sleeving 24kv and so on.

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Volsun Insulating Silicone Rubber Cover

Get Latest Price
Purchase Qty. / Reference FOB Price
200-499 Meters US $2.5
500-1,999 Meters US $2.2
2,000+ Meters US $2
Production Capacity: 1, 000, 000 Meters/Month
Transport Package: Standard Carton Package
Payment Terms: L/C, T/T, Paypal, Western Union
Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Insulating Varnish
Type: Insulation Sleeve
Chemistry: Inorganic Insulation
Material: Rubber
Thermal Rating: 250 250
Maximum Voltage: 220kv

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Basic Info

Color: Red, Grey, Green
Brand: Volsun
Product: Red Silicone Rubber Overhead Line Cover
Heat Shrink Ratio: No Shrink, Split Line Hose/ Overhead Line Cover
Standard Color: White/ Black/ Red/ Green
Operating Temperature: -40 Degree to 200 Degree
Sample: Free for Existing Sample
Dielectric Constant: GB/T 1409-2006
Electrical Strength Test: GB/T 1408.1-2006
Trademark: VOLSUN
Specification: RoHS
Origin: China
HS Code: 8547909000

Product Description

Volsun Insulating Silicone rubber cover

RUBNS-OLC The innovative product 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. Widely used in substation protection works and railway catenary system, a significant effect in the cross-lines.

Volsun Insulating Silicone Rubber Cover

Volsun Insulating Silicone Rubber Cover
Volsun Insulating Silicone Rubber Cover
Serial No. Properties Unit Standard Data Test Results Test Methods
1 Electrical Strength Test KV/mm 20 22 GB/T 1408.1-2006
2 Volume Resistivity Ω.cm  
1×10 14
2×10 14 GB/T 1410-2006
3 Dielectric Constant   2-3 2.3 GB/T 1409-2006
4 Shore Hardness   70±5 7.1 GB/T 531
Mechanical Properties
Before ageing
Tensile Strength
Elongation at break
After Heat ageing(180degrees C, 7d)
Tensile Strength Change
Elongation Change
GB/T 528
6 Low Temperature Elongation(-15degree C , 2h) % 20 190 GB/T 2951.4-1997
7 Low Temperature Flexibility(-50degree C , 4h) - No cracks No cracks UL224-2004
8 High Temperature Crack Resistance(155degree C, 2h) - No cracks No cracks GB/T2951.6-1997
l  Product Dimensions
LJ Stranded Wire  Cross-sectional Area(Nominal) O.D. Of LJ Stranded Wire(mm) Silicone Rubber Sleeving Covers Models
16 mm²ID     
35 mm² 7.50 ID10
50 mm² 9.00 ID12
70 mm² 10.80 ID12
95 mm² 12.48 ID17
120 mm² 14.25 ID17
150 mm² 15.75 ID20
185 mm² 17.50 ID20
210 mm² 18.75 ID24.2
240 mm² 20.00 ID24.2
300 mm² 22.40 ID24.2
400 mm² 25.90 ID30
500 mm² 29.12 ID32
630 mm² 32.67 ID35
800 mm² 36.90  ID39.8
l  Voltage Ratings/Wall Thickness
Voltage(kV) ≤10kV ≤35kV ≤110kV ≤220kV
Thickness(mm) 2.3mm 2.3-3.0mm 4.0-6.0mm 6.0-8.0mm

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