Silicone Rubber Material Overhead Power Line Conductor Cover
- RUBNS-OLC
- Detailed
RUBNS-OLC is made of high-quality silicone rubber material. It has excellent electrical and tracking resistance, excellent weather resistance, high mechanical properties, hydrophobicity and hydrophobic migration, and excellent high and low temperature resistance. It can be used continuously under the temperature of -50℃~+150℃. It is convenient and simple to install, saves labor and time, and is used for insulation protection of cables and wires to increase the safe distance between objects and cables.
Features
- Soft and fold-resistant
- Long service life, anti-aging, and corrosion resistance
- Simple installation, no fire, power outage construction time is short
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
Recommended Size for LG Type Aluminum Stranded Wires
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
Recommended size for LGJ Type Steel Core Aluminum Stranded Wires & LGJF Type Anti-corrosion Steel Core Aluminum Stranded Wires
Nominal cross-sectional area (mm²) 对应绝缘护套管规格(mm)
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
Note: Special sizes and packaging can be customized upon request.
Correspondence table between voltage and wall thickness
|
Voltage(KV) |
≤10kV |
≤35kV |
≤110kV |
≤220kV |
|
Wall thickness |
2.0±0.3mm |
3.0±0.4mm |
4.0±0.5mm |
6.0±1.0mm |
