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Line Post Insulators

Place Of Origin: Jiangxi, China

Branding:ECI

Model Specification: 57-1/57-2/57-3/57-4

STANDARD:ANSI C29.7-2015

VOLTAGE:11kV-66kV

    ANSI CLASS 57-1 57-2 57-3 57-4
    Creepage Distance(mm) 356 559 737 1015
    Dry Arcing Distance (mm) 165 241 311 368
    Cantilever Strength (kN) 12.5 12.5 12.5 12.5
    Low Frequency Flashover Voltage-Dry (KV) 70 100 125 140
    Low Frequency Flashover Voltage-Wet(kV) 50 70 95 110
    Critical Impulse Flashover Voltage-Pos. (KV) 120 160 200 230
    Test Voltage to Ground(kV) 15 22 30 44
    Maximum RIV at 1000KHZ(μv) 100 100 200 200
    Net Weight (kg) 4.8 7.8 11 18

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