Silicone Rubber Overhead Line Cover
Applications:Widely used in substation protection works and railway catenary system, a significant effect in the cross-lines.Features: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. Technical properties:PropertiesTest methodTypical dataElectical strength TestGB/T1408.1-2006≥20kV/mmDielectric constantGB/TVolume ResistivityGB/T1410-2006≥1X1014Ω•cmShore HardnessGB/T 53170 ABefore heat ageingTensile StrengthGB/T 528≥4.0MpaElongation at breakGB/T 528≥200%After Heat ageing(180℃,7d)Tensile strength changeGB/T 528±30%Elongation changeGB/T 528±30%Low Temperature Elongation
(-15℃,2h)GB/T 2951.4-1997≥20%Low Temperature Flexiblity
(-50℃,4h)UL224-2004No cracksHigh Temperature Crack Resistance(155℃,2h)GB/T2951.61997No cracksDimensions:Voltage-RatingsVoltage(kV)≤10kV≤35kVThickness2.0±0.3mm3.0±0.4mm Size
(mm)Suitable conductor section
(mm2)Max. conductor diameter
(mm
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