| Ball and socket type suspension porcelain insulators( ANSI Class ) |
| ANSI Class | 52-3 | 52-5 | 52-8 | 52-11 |
| Coupling size | Type B | Type J | Type K | Type K |
| Dimensions |
| Diameter(D) | mm | 254 | 254 | 254 | 280 |
| Spacing(H) | mm | 146
| 146 | 146 | 155 |
| Creepage distance | mm | 320
| 320 | 320 | 380 |
| Dry arcing distance | mm | 197
| 197 | 197 | 216 |
| Mechanical Values |
| Combined M&E strength | KN | 67 | 111 | 178 | 222 |
| Dry arcing distance | mm | 197 | 197 | 197 | 216 |
| Impact strength | N.M | 6.2
| 10 | 11.3 | 11.3 |
| Routine proof test load | KN | 33.3
| 55.5 | 89 | 111 |
| Time load test value | KN | 44.5
| 67 | 107 | 134 |
| Maximum working load | KN | 33.3
| 55.5 | 89 | 111 |
| Electrical Values |
| Low frequency dry flashover voltage | KV | 80 | 80 | 80 | 80 |
| Low frequency wet flashover voltage | KV | 50 | 50 | 50 | 50 |
| Criticalimpulse flashover voltage,positive | KV | 125 | 125 | 125 | 125 |
| Critical impulse flashover voltage,negative | KV | 130 | 130 | 130 | 130 |
| low frequency puncture voltage | KV | 110 | 110 | 110 | 110 |
| Radio influence Voltage Data |
| Test voltage RMS to ground | KV | 10 | 10 | 10 | 10 |
| Maximum RIV at 1000kHz | μv | 50 | 50 | 50 | 50 |
| Packing and Shipping Data |
| Net weight,approximate | KG | 4.7 | 5.2 | 7.8 | 9.7 |
