Suzhou Volsun Electronics Technology Co., Ltd.
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RUBNS-OLC
VOLSUN
The 110kV Silicone Cover for Bare Cables represents a breakthrough in high-voltage cable protection, engineered to shield bare conductors in transmission and distribution networks from environmental stressors and electrical hazards. This lightweight yet robust silicone housing provides superior insulation, tracking resistance, and weatherability, ensuring reliable performance in demanding utility applications. Designed for quick installation on conductors up to 500 mm², it delivers long-term protection against UV radiation, abrasion, and chemical exposure in both overhead and underground installations.
Constructed from high-purity silicone rubber, the cover achieves 10 kV/mm dielectric strength, exceeding industry requirements for 110kV applications . Its volume resistivity of 10¹² ohm·cm ensures minimal leakage current, maintaining insulation integrity even in high-humidity environments . The material's inherent tracking resistance prevents surface degradation from electrical discharges, extending cable service life.
With a 65 Shore A hardness and 200% minimum elongation, the silicone cover balances rigidity with flexibility to withstand installation stresses and thermal expansion cycles . It resists ozone, oxidation, and UV degradation, maintaining physical properties after prolonged outdoor exposure. The cover's 4 N/mm² tensile strength and 10 N/mm² tear strength ensure resistance to mechanical damage during handling and operation .
Available in precision-machined dimensions for conductors ranging from 12 mm to 35 mm diameter, the cover provides a snug fit without compromising installation efficiency . Its 5 mm uniform wall thickness ensures consistent insulation performance across all conductor sizes . The lightweight design reduces installation fatigue and eliminates the need for heavy lifting equipment in overhead applications.
Category | Specification | Value | Test Method |
Electrical Properties | Dielectric Strength | 10 kV/mm (min) | ASTM D2671 |
Volume Resistivity | 10¹² ohm·cm (min) | IEC 60093 | |
Voltage Rating | 110kV | IEC 60840 | |
Mechanical Properties | Hardness | 65 Shore A | ISO 868 |
Tensile Strength | 4 N/mm² (min) | ASTM D638 | |
Elongation | 200% (min) | ASTM D638 | |
Tear Strength | 10 N/mm² (min) | ASTM D638 | |
Dimensional Data | Conductor Diameter Range | 12 mm - 35 mm | Custom Engineering |
Wall Thickness | 5 mm | ASTM D374 |
Protects bare overhead conductors in 110kV transmission lines from environmental contamination and weathering. Ideal for retrofitting aging infrastructure and upgrading lines in coastal or industrial areas with high pollution levels.
Shields busbars and conductor connections in outdoor substations from dust, moisture, and accidental contact. The non-conductive design enhances personnel safety during maintenance operations.
Essential for cable protection in wind farms and solar power facilities where conductors are exposed to extreme weather conditions. Its UV resistance ensures reliable performance in open, unshaded installations typical of renewable energy sites.
Protects catenary wires and feeder cables in high-speed rail networks from abrasion and environmental damage. The cover's flexibility accommodates vibration and thermal movement in dynamic railway environments.
The cover's silicone formulation provides inherent UV resistance, ozone stability, and weatherability, maintaining performance in temperatures ranging from -50°C to 150°C. It resists degradation from sunlight, rain, snow, and industrial pollutants, ensuring a service life exceeding 20 years in most applications.
It is engineered for conductors with cross-sectional areas from 25 mm² to 500 mm², corresponding to conductor diameters of 12 mm to 35 mm . Custom sizes are available for specialized applications requiring non-standard conductor dimensions.
No, the design enables quick, tool-free installation by simply sliding the cover over properly prepared conductors . Its flexibility allows for easy positioning even in confined spaces, reducing installation time compared to traditional insulation methods.
Yes, the silicone cover meets IEC 60840 and ASTM D2671 standards for high-voltage insulation materials . It is certified for use in utility applications worldwide, with additional compliance to regional specifications as required.
Item | Typical Data | Test Method |
Electrical Strength Test | ≥20kV/mm | GB/T 1408.1-2006 |
Volume Resistivity | ≥1×1014Ω·cm | GB/T 1410-2006 |
Dielectric Constant | 2～3 | GB/T 1409-2006 |
Shore Hardness | 70±5A | GB/T 531 |
Mechanical Property | ||
Before heat ageing | ||
Tensile Strength | ≥4.0MPa | GB/T 528-2009 |
Elongation at break | ≥200% | GB/T 528-2009 |
After Heat aging (180℃, 7d) | ||
Tensile Strength Change | ±30% | GB/T 528-2009 |
Elongation Change | ±30% | GB/T 528-2009 |
Low Temperature Elongation(-15℃, 2h) | ≥20% | GB/T 2951.4-1997 |
Low Temperature Flexibility(-50℃, 4h) | No cracks | UL224-2004 |
High Temperature Crack Resistance(155℃, 2h) | No cracks | GB/T2951.6-1997 |
Nominal cross-sectional area (mm²) | Recommended Inner Diameter of Conductor Cover (mm) |
50～70 | Ф12 |
95～120 | Ф17 |
150～185 | Ф20 |
210～300 | Ф24.2 |
400 | Ф30 |
500 | Ф32 |
630 | Ф35 |
800 | Ф39.8 |
Nominal cross-sectional area (mm²) | Recommended Inner Diameter of Conductor Cover (mm) |
35 50 | Ф12 |
Ф15.6 | |
70～95 120～150 185～240 | Ф17 |
Ф20 | |
Ф24.2 | |
400～500 800～800 | Ф32 |
Ф39.8 |
Voltage(KV) | ≤10kV | ≤35kV | ≤110kV | ≤220kV |
Wall thickness | 2.0±0.3mm | 3.0±0.4mm | 4.0±0.5mm | 6.0±1.0mm |
The 110kV Silicone Cover for Bare Cables represents a breakthrough in high-voltage cable protection, engineered to shield bare conductors in transmission and distribution networks from environmental stressors and electrical hazards. This lightweight yet robust silicone housing provides superior insulation, tracking resistance, and weatherability, ensuring reliable performance in demanding utility applications. Designed for quick installation on conductors up to 500 mm², it delivers long-term protection against UV radiation, abrasion, and chemical exposure in both overhead and underground installations.
Constructed from high-purity silicone rubber, the cover achieves 10 kV/mm dielectric strength, exceeding industry requirements for 110kV applications . Its volume resistivity of 10¹² ohm·cm ensures minimal leakage current, maintaining insulation integrity even in high-humidity environments . The material's inherent tracking resistance prevents surface degradation from electrical discharges, extending cable service life.
With a 65 Shore A hardness and 200% minimum elongation, the silicone cover balances rigidity with flexibility to withstand installation stresses and thermal expansion cycles . It resists ozone, oxidation, and UV degradation, maintaining physical properties after prolonged outdoor exposure. The cover's 4 N/mm² tensile strength and 10 N/mm² tear strength ensure resistance to mechanical damage during handling and operation .
Available in precision-machined dimensions for conductors ranging from 12 mm to 35 mm diameter, the cover provides a snug fit without compromising installation efficiency . Its 5 mm uniform wall thickness ensures consistent insulation performance across all conductor sizes . The lightweight design reduces installation fatigue and eliminates the need for heavy lifting equipment in overhead applications.
Category | Specification | Value | Test Method |
Electrical Properties | Dielectric Strength | 10 kV/mm (min) | ASTM D2671 |
Volume Resistivity | 10¹² ohm·cm (min) | IEC 60093 | |
Voltage Rating | 110kV | IEC 60840 | |
Mechanical Properties | Hardness | 65 Shore A | ISO 868 |
Tensile Strength | 4 N/mm² (min) | ASTM D638 | |
Elongation | 200% (min) | ASTM D638 | |
Tear Strength | 10 N/mm² (min) | ASTM D638 | |
Dimensional Data | Conductor Diameter Range | 12 mm - 35 mm | Custom Engineering |
Wall Thickness | 5 mm | ASTM D374 |
Protects bare overhead conductors in 110kV transmission lines from environmental contamination and weathering. Ideal for retrofitting aging infrastructure and upgrading lines in coastal or industrial areas with high pollution levels.
Shields busbars and conductor connections in outdoor substations from dust, moisture, and accidental contact. The non-conductive design enhances personnel safety during maintenance operations.
Essential for cable protection in wind farms and solar power facilities where conductors are exposed to extreme weather conditions. Its UV resistance ensures reliable performance in open, unshaded installations typical of renewable energy sites.
Protects catenary wires and feeder cables in high-speed rail networks from abrasion and environmental damage. The cover's flexibility accommodates vibration and thermal movement in dynamic railway environments.
The cover's silicone formulation provides inherent UV resistance, ozone stability, and weatherability, maintaining performance in temperatures ranging from -50°C to 150°C. It resists degradation from sunlight, rain, snow, and industrial pollutants, ensuring a service life exceeding 20 years in most applications.
It is engineered for conductors with cross-sectional areas from 25 mm² to 500 mm², corresponding to conductor diameters of 12 mm to 35 mm . Custom sizes are available for specialized applications requiring non-standard conductor dimensions.
No, the design enables quick, tool-free installation by simply sliding the cover over properly prepared conductors . Its flexibility allows for easy positioning even in confined spaces, reducing installation time compared to traditional insulation methods.
Yes, the silicone cover meets IEC 60840 and ASTM D2671 standards for high-voltage insulation materials . It is certified for use in utility applications worldwide, with additional compliance to regional specifications as required.
Item | Typical Data | Test Method |
Electrical Strength Test | ≥20kV/mm | GB/T 1408.1-2006 |
Volume Resistivity | ≥1×1014Ω·cm | GB/T 1410-2006 |
Dielectric Constant | 2～3 | GB/T 1409-2006 |
Shore Hardness | 70±5A | GB/T 531 |
Mechanical Property | ||
Before heat ageing | ||
Tensile Strength | ≥4.0MPa | GB/T 528-2009 |
Elongation at break | ≥200% | GB/T 528-2009 |
After Heat aging (180℃, 7d) | ||
Tensile Strength Change | ±30% | GB/T 528-2009 |
Elongation Change | ±30% | GB/T 528-2009 |
Low Temperature Elongation(-15℃, 2h) | ≥20% | GB/T 2951.4-1997 |
Low Temperature Flexibility(-50℃, 4h) | No cracks | UL224-2004 |
High Temperature Crack Resistance(155℃, 2h) | No cracks | GB/T2951.6-1997 |
Nominal cross-sectional area (mm²) | Recommended Inner Diameter of Conductor Cover (mm) |
50～70 | Ф12 |
95～120 | Ф17 |
150～185 | Ф20 |
210～300 | Ф24.2 |
400 | Ф30 |
500 | Ф32 |
630 | Ф35 |
800 | Ф39.8 |
Nominal cross-sectional area (mm²) | Recommended Inner Diameter of Conductor Cover (mm) |
35 50 | Ф12 |
Ф15.6 | |
70～95 120～150 185～240 | Ф17 |
Ф20 | |
Ф24.2 | |
400～500 800～800 | Ф32 |
Ф39.8 |
Voltage(KV) | ≤10kV | ≤35kV | ≤110kV | ≤220kV |
Wall thickness | 2.0±0.3mm | 3.0±0.4mm | 4.0±0.5mm | 6.0±1.0mm |
