Pin Type Insulator (55 Series)

Pin type insulator(55 Series)

Main dimensions and standard particulars
Class ANSI 55-1 55-2 55-3 55-4 55-5
Creepage Distance 102 127 178 229 305
Dry arcing distance 57 86 114 127 159
Cantilever strength (KN)13 11 11 13 13
Low frequency dry flashover voltage 35 45 56 65 80
Low frequency wet flashover voltage 20 25 30 35 45
Critical impulse flashover POS(kv) 50 70 90 105 130
Critical impulse flashover Neg(kv) 70 85 110 130 150
Power-frequency puncture voltage(kv)50 70 90 95 115
Test voltage to ground (kv)5 5 10 10 15
Maximum RIV at 1000Hz(UV)50 50 50 50 100
Net weight (kg) 0.5 0.65 1 1.55 2.75