Porcelain Pin Insulator
What is porcelain pin insulator?
Porcelain Pin insulator also called pin type insulator, ceramic pin insulators. Pin type insulators were used for distribution line, normally up to 33kV. Porcelain pin insulators used with steel spindle, and spindle installed on wooden cross arm or steel cross arm. And conductor combined on insulators top groove or side groove by side tie or top tie.
Orient can produce almost all types pin insulators. Such as ANSI standard porcelain pin insulator and IEC standard pin insulators.
ANSI standard insulator type:
ANSI C29.5: ANSI 55-1, ANSI 55-2, ANSI 55-3, ANSI 55-4, ANSI 55-5
ANSI C29.6: ANSI 56-1, ANSI 56-2, ANSI 56-3, ANSI 56-4, ANSI 56-5
Other types: P-11-Y, P-15-Y, P-22-Y, P-33-Y, PW-15-Y, PW-22-Y, PW-33-Y
ANSI 55 series porcelain pin insulators type:
| Type No. | ANSI 55-1 | ANSI 55-2 | ANSI 55-3 | ANSI 55-4 | ANSI 55-5 |
| Creepage distance – (mm) | 102 | 127 | 178 | 229 | 305 |
| Dry arcing ditance – (mm) | 57 | 86 | 114 | 127 | 159 |
| Cantilever failing load – (kN) | 13 | 11 | 11 | 13 | 13 |
| Dry flashover voltage – (kV) | 35 | 45 | 55 | 65 | 80 |
| Wet flashover voltage – (kV) | 20 | 25 | 30 | 35 | 45 |
| Impulse flashover Pos. – (kV) | 50 | 70 | 90 | 105 | 130 |
| Impulse flashover Neg. – (kV) | 70 | 85 | 110 | 130 | 150 |
| Low frequency puncture voltage – (kV) | 50 | 70 | 90 | 95 | 115 |
| Test voltage to ground – (kV) | 5 | 5 | 10 | 10 | 15 |
| Max.RIV at 1000kHz – (µV) | 50 | 50 | 50 | 50 | 100 |
ANSI 56 series porcelain pin insulators type:
| Type No. | ANSI 56-1 | ANSI 56-2 | ANSI 56-3 | ANSI 56-4 | ANSI 56-5 |
| Creepage distance – (mm) | 330 | 432 | 533 | 686 | 865 |
| Dry arcing ditance – (mm) | 178 | 203 | 229 | 279 | 356 |
| Cantilever failing load – (kN) | 11 | 13 | 13 | 13 | 13 |
| Dry flashover voltage – (kV) | 95 | 110 | 125 | 140 | 175 |
| Wet flashover voltage – (kV) | 60 | 70 | 80 | 95 | 125 |
| Impulse flashover Pos. – (kV) | 150 | 175 | 200 | 225 | 270 |
| Impulse flashover Neg. – (kV) | 190 | 225 | 265 | 310 | 340 |
| Low frequency puncture voltage – (kV) | 130 | 145 | 165 | 185 | 225 |
| Test voltage to ground – (kV) | 15 | 22 | 30 | 30 | 44 |
| Max.RIV at 1000kHz – (µV) | 100 | 100 | 200 | 200 | 200 |
BS series porcelain pin insulators type:
| Type No. | P-11-Y | P-15-Y | P-22-Y | P-33-Y | PW-11-Y | PW-22-Y | PW-33-Y |
| Creepage distance – (mm) | 155 | 298 | 432 | 630 | 432 | 673 | 900 |
| Cantilever failing load – (kN) | 11 | 11 | 11 | 13 | 11 | 11 | 11 |
| Dry flashover voltage – (kV) | 75 | 80 | 110 | 130 | 100 | 125 | 140 |
| Wet flashover voltage – (kV) | 50 | 55 | 70 | 95 | 65 | 95 | 110 |
| Dry withstand voltage – (kV) | 65 | 70 | 100 | 125 | 90 | 110 | 125 |
| Wet withstand voltage – (kV) | 45 | 50 | 65 | 90 | 60 | 90 | 100 |
| Impulse flashover Pos. – (kV) | 115 | 130 | 175 | 215 | 150 | 190 | 210 |
| Impulse flashover Neg. – (kV) | 150 | 175 | 225 | 290 | / | / | / |
| Low frequency puncture voltage – (kV) | 135 | 150 | 160 | 210 | 140 | 180 | 200 |
| Test voltage to ground – (kV) | 15 | 15 | 22 | 30 | 22 | 30 | 44 |
| Max.RIV at 1000kHz – (µV) | 100 | 100 | 100 | 200 | 100 | 200 | 200 |