Porcelain pin insulators
Main parameters:
Voltage Range: 11kV~38kV
Mechanical failing load:10kN,11kN,13kN and as per client’s request
Glaze: Light grey, white, brown
Porcelain pin insulators complies with following standards:
● ANSI C29.5
● IEC60383
● BS137
| ANSI Class | 56-1 | 56-2 | 56-3 | 56-4 | 56-5 | ||
| Creepage Distance (mm) | 330 | 432 | 533 | 686 | 864 | ||
| Dry arcing Distance (mm) | 178 | 210 | 241 | 286 | 356 | ||
| Cantilever Strength (kN) | 11 | 13 | 13 | 13 | 13 | ||
| Power frequency flashover voltage (kV) | Dry | 95 | 110 | 125 | 140 | 175 | |
| Wet | 60 | 70 | 80 | 95 | 125 | ||
| Critical Impulse Flashover voltage (kV) | Pos | 150 | 175 | 200 | 225 | 270 | |
| Neg | 190 | 225 | 265 | 310 | 340 | ||
| Power frequency puncture voltage (kV) | 130 | 145 | 165 | 185 | 225 | ||
| RIV Data | Test voltage to ground (kV) | 15 | 22 | 30 | 30 | 44 | |
| Max.RIV at 1MHz (μV) | 100 | 100 | 200 | 200 | 200 | ||
| Applicable Standard | ANSI C29.5 | ||||||
