Gold Member Since 2014
Audited Supplier
Suzhou Volsun Electronics Tech. Co., Ltd.

Red Silicone Rubber Overhead Line Cover, Overhead Conductor Animal Guard Cover, Silicon Rubber Protection Cover manufacturer / supplier in China, offering Overhead Line Cover Insulated Tubing, EPDM Cold Shrink Tube for Cable (RUBLS-EPDM), Electronic Grade Transparent Silicone Tubing and so on.

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Supplier Homepage Product Non -Shrinkable Tubing Overhead Line Cover Insulated Tubing

Overhead Line Cover Insulated Tubing

Purchase Qty.:
200-499 500-1,999 2,000+
FOB Unit Price: US $2.5 US $2.2 US $2
Purchase Qty. (Meters) FOB Unit Price
200-499 US $2.5
500-1,999 US $2.2
2,000+ US $2
Get Latest Price
Port: Shanghai, China
Production Capacity: 1, 000, 000 Meters/Month
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: RUBNS-OLC
  • Type: Insulation Sleeve
  • Material: Rubber
  • Maximum Voltage: 220kv
  • Color: Red, Grey, Green
  • Product: Red Silicone Rubber Overhead Line Cover
  • Standard Color: White/ Black/ Red/ Green
  • Sample: Free for Existing Sample
  • Electrical Strength Test: GB/T 1408.1-2006
  • Transport Package: Standard Carton Package
  • Origin: China
  • Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Insulating Varnish
  • Chemistry: Inorganic Insulation
  • Thermal Rating: 250 250
  • Certification: ISO9001
  • Brand: Volsun
  • Heat Shrink Ratio: No Shrink, Split Line Hose/ Overhead Line Cover
  • Operating Temperature: -40 Degree to 200 Degree
  • Dielectric Constant: GB/T 1409-2006
  • Trademark: VOLSUN
  • Specification: RoHS
  • HS Code: 8547909000
Product Description
Overhead line cover insulated tubing

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.

Overhead Line Cover Insulated Tubing
Overhead Line Cover Insulated Tubing
Serial No.PropertiesUnitStandard DataTest ResultsTest Methods
1Electrical Strength TestKV/mm2022GB/T 1408.1-2006
2Volume ResistivityΩ.cm 
1×10 14
2×10 14GB/T 1410-2006
3Dielectric Constant 2-32.3GB/T 1409-2006
4Shore Hardness 70±57.1GB/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
6Low Temperature Elongation(-15degree C , 2h)%20190GB/T 2951.4-1997
7Low Temperature Flexibility(-50degree C , 4h)-No cracksNo cracksUL224-2004
8High Temperature Crack Resistance(155degree C, 2h)-No cracksNo cracksGB/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 mm²7.50ID10
50 mm²9.00ID12
70 mm²10.80ID12
95 mm²12.48ID17
120 mm²14.25ID17
150 mm²15.75ID20
185 mm²17.50ID20
210 mm²18.75ID24.2
240 mm²20.00ID24.2
300 mm²22.40ID24.2
400 mm²25.90ID30
500 mm²29.12ID32
630 mm²32.67ID35
800 mm²36.90 ID39.8
l  Voltage Ratings/Wall Thickness
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