Porcelain disc insulator for high voltage
| Main dimensions and standard particulars |
| cat.no | A1058 | A1059 | A1060 | A1061 | A1062 | A1063 | A1064 | A1065 | | fig | 1 | 2 | 3 | 4 | 3 | 4 | 5 | 4 | | class ANSI | 52-1 | 52-2 | 52-3 | 52-4 | 52-5 | 52-6 | 52-9 | 52-10 | | main dimensions | D | 165 | 190.5 | 254 | 254 | 254 | 254 | 114 | 279.4 | | H | 139.7 | 146 | 146 | 146 | 146 | 146 | 160 | 165 | | creepage distance(mm) | 178 | 210 | 292 | 292 | 279 | 279 | 171 | 279 | | power-frequency puncture voltage(kv) | 80 | 90 | 110 | 110 | 110 | 110 | 80 | 110 | | Average flashover voltage | power-frequency | dry | 60 | 65 | 80 | 80 | 80 | 80 | 60 | 80 | | wet | 30 | 35 | 50 | 50 | 50 | 50 | 30 | 50 | Critical-impulse
15x14 μs wave | positive | 100 | 115 | 125 | 125 | 125 | 125 | 90 | 125 | | negative | 100 | 115 | 130 | 130 | 130 | 130 | 100 | 130 | | Radio-influence-voltage data | test voltage to ground(kv) | 7.5 | 7.5 | 10 | 10 | 10 | 10 | 7.5 | 10 | | maximum riv at 1000khz (μv) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | | electromechanical failing load(kn) | 44 | 67 | 67 | 67 | 111 | 111 | 44 | 160 | | mechanical pressure strength(n.m) | 5 | 5.5 | 5.5 | 6 | 7 | 7 | 5 | 10 | | time load test(kn) | 27 | 44 | 44 | 44 | 67 | 67 | 27 | 107 |
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