Insulators
ANSI 57-13 Brown Porcelain Line-Post Insulator | 33 kV Drawing
Product Overview
Brown porcelain line-post insulator with top clamp and metal base. Six factory photographs match the dedicated ANSI 57-13 drawing and its eight-shed profile. Dimensions and test figures below follow that drawing. The source series table conflicts on voltage and dimensions; independent test certificates were not provided.
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Technical Parameters
| Parameter | Unit | Value |
|---|---|---|
| Model shown on drawing | ANSI 57-13 | |
| Voltage designation on drawing | kV | 33 |
| Overall height | mm | 419 ± 17 |
| Body diameter | mm | 172 |
| Creepage distance | mm | 736 |
| Dry arcing distance | mm | 311 |
| Mechanical failing load | kN | 12.5 |
| Low-frequency dry flashover | kV | 125 |
| Low-frequency wet flashover | kV | 100 |
| Power-frequency puncture | kV | 195 |
| Critical impulse flashover | kV | 200 |
| Base thread shown | M22 |
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