Project Description
Porcelain Line Post Insulator: ANSI 57-13
Porcelain insulator includes Suspension type, Pin type, Spool type, Strain/Guy type, Line Post type and Station Post type, which meet IEC, ANSI, AS, BS, etc. standards.
|
ANSI Class |
57-11 | 57-12 | 57-13 | 57-14 | 57-15 | |
| Creepage distance (mm) | 356 | 559 | 737 | 1015 |
1145 |
|
|
Dry arcing distance (mm) |
165 | 241 | 311 | 368 | 438 | |
| Cantilever strength (kN) | 12.5 | 12.5 | 12.5 | 12.5 |
12.5 |
|
| Low frequency flashover (kV) |
Dry (kV) |
80 | 110 | 125 | 150 | 175 |
|
Wet(kV) |
60 | 85 | 100 | 125 |
150 |
|
| Critical impulse flashover | Positive (kV) | 130 | 180 | 210 | 255 |
290 |
|
Negative (kV) |
155 | 205 | 260 | 340 | 380 | |
| Radio influence voltage |
Test voltage to ground (kV) | 15 | 22 | 30 | 44 |
44 |
|
Maximum RIV at 1000kHz (uV) |
100 | 100 | 200 | 200 |
200 |
|
|
Net weight, Each, Approx (kg) |
6.8 | 10 | 11.8 | 15.9 | 18.6 | |
| Nos. in standard package (Nos.) | 6 | 3 | 3 | 2 |
2 |
|
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