Factory No. 10301 10302 10303 10304 10305 10306 10307 10308 ANSI or AS Class 53-1 53-2 53-3 53-4 53-5 R-1 R-2 R-3 Fig. No 11 12 11 11 13 14 14 15 Mechanical Failing Load kN 8.9 13.3 17.8 20 26.7 9 20 9 Low Frequency Dry Flashover Voltage kv 20 25 25 25 35 - - - Low Frequency Wet Flashover Voltage Vertical kv 8 12 12 12 18 - - - Horizontal kv 10 15 15 15 25 - - - Dimmensions mm H 54 76 81 76 105 54 76 32 D 57 79 76 105 102 57 80 57.5 R 11 17.5 11 16 11 12 17 9 d1 44 44 44 73 73 39 54 40 d2 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 Net Weight Each Approx. kg 0.2 0.5 0.6 1 1.2 0.3 0.7 0.13