ANSI 55-6 standard pin insulator, ANSI 55-7 standard are high voltage pin insulator design manufactured by Orient Power insulator manufacturer in China, and normally used on 35kv power lines.
ANSI 55-6 standard pin insulator, ANSI 55-7 standard data
| application | Tie-top IP-35-F1 | IP-35-VTN/M* vise top | ANSI 55-6 | Tie-top IP-35-F2 | IP-35-VTN/M* 2 vise top | ANSI 55-7 |
| “Nominal” ANSI Class | 55-6 | 55-6 | 55-6 | 55-7 | 55-7 | 55-7 |
| Neck Size/Style | F | NA | J | F | NA | J |
| Typical Operating Voltage Application, kV (L-L) |
35 | 35 | 35 | 35 | 35 | 35 |
| Leakage Distance (in | 20.9 | 21 | 15 | 20.9 | 21 | 15 |
| Dry Arcing Distance (in) | 9.5 | 9.8 | 8 | 9.5 | 9.8 | 8 |
| Pin Hole Diameter (in) | 1 | 1 | 1 | 1.375 | 1.375 | 1.375 |
| Suggested Minimum Pin Length (in) |
7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 |
| 60Hz Dry Flashover (kV) | 126(1) | 128(Ny) ;115(met) (1) |
100 | 126 | 128;115 | 100 |
| 60Hz Wet Flashover (kV) | 82(1) | 72(Ny) ;80(met) (1) |
50 | 82 | 72;80 | 50 |
| Positive Impulse Flashover (kV) | 175(1) | 188(Ny) ;196(met) (1) |
150 | 175 | 188;196 | 150 |
| Negative Impulse Flashover (kV) | -238(1) | -272(Ny) ;-261(met) (1) |
-170 | -238 | -272;-261 | -170 |
| Low Frequency Puncture (kV) |
223 | 219(Ny) ;209(met) (1) |
135 | 235 | 219;209 | 135 |
| 10kV to grd, μV | NA | NA | NA | NA | NA | |
| 15kV to grd, μV | <100μV @22kV |
NA | NA | NA | NA | |
| 22kV to grd, μV | NA | <5(1) | <100μV @22kV |
<5 | <6 | <100μV @22kV |
| Cantilever Strength (lbs) | 3000 | 3000 | 3000 | 3000 | 3000 | |
| Aproximate Weight (lbs) | 2.8 | 3 | NA | 2.8 | 3.2 | NA |
| Maximum Operating Temperature (Degree C) |
120 | 120 | 120 | NA | 120 | NA |
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