EP480 capped porcelain line post insulators were used in electrical system with creepage distance 786mm, which are also called electrical insulator.
Due to the weather changing, EP480 capped porcelain line post insulators will be breakdown by lightning, when the same time voltage is called breakdown voltage.
EP480 capped porcelain line post insulators are used in electrical equipment to support and separate electrical conductors without allowing current through themselves. The EP480 capped porcelain line post insulator is also used more specifically to refer to insulating supports used to attach electric power distribution or transmission lines to utility poles and transmission towers. They support the weight of the suspended wires without allowing the current to flow through the tower to ground.
EP480 capped porcelain line post insulators technical parameters:
Type: | EP480-00 | |
Nominal voltage | kv | 33 |
Nominal creepage distance |
mm | 786 |
Bottom fixing diameter | mm | M20 |
Top fixing diameter | mm | 73 |
Top groove radius | mm | 25 |
Cantilever strengh | kn | 4 |
Dry arcing distance | mm | 320 |
Power frequency flashover dry | kv | 127 |
Power frequency flashover wet | kv | 74 |
Power frequency withstand dry | kv | 131 |
Power frequency withstand wet | kv | 87 |
Impulse withstand voltage (bil) | kv | 205 |
Impulse flashover positive | kv | 209 |
Impulse flashover negative | kv | 346 |
EP480 capped porcelain line post insulators application:
EP480 capped porcelain line post insulator can be used on high voltage distribution power line, which is also called high voltage insulator.
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