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Post Insulator For High Voltage Lines
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Pin Insulators For High Voltage Lines
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Details
Cat. No. C2227、C2228、C2229、C2230、C2231
National standard: ANSI
Main dimensions and standard particulars
Cat. No. C2227 C2228 C2229 C2230 C2231
ANSI class 57-21 57-22 57-23 57-24 47-25
Creepage distance (mm) 356 559 737 1015 1145
Dry arcing distance (mm) 165 241 311 368 438
Cantilever strength (kN) 12.5 12.5 12.5 12.5 12.5
Low frequency dry flashover voltage (kV) 80 110 125 150 175
Low frequency wet flashover voltage (kV) 70 100 115 135 160
Critical impulse flashover, pos (kV) 130 180 210 255 290
Critical impulse flashover, neg (kV) 155 205 260 340 380
Test voltage to ground (kV) 15 22 30 44 44
Max . RIV at 1MHz (μV) 100 100 200 200 200
Net weight, each, approx (kg) 7.5 10.5 12.7 16.8 19.5
Number in standrad package 6 3 3 2 2
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