High voltage pin post insulator 20KV can be used on overhead power line. Below are few definitions for technical parameters in relation to high voltage pin post insulator 20KV.

Creepage Length -The creepage length is the shortest distance between two metallic end fittings of high voltage pin post insulator 20KV along the surface of insulator. In the string of porcelain pin post insulators for creepage length calculation the metallic portion between two consecutive insulator discs is not taken into account.
The corrugation below the high voltage pin post insulator 20KV is for the purpose of obtaining longer creepage path between the pin and cap. The corrugation increases the creepage length so consequently increasing resistance to the high voltage pin post insulators 20KV leakage current. The leakage current that flows through the surface of insulators should be as little as possible.
The creepage distance required in clean air may be 15 mm per kiloVolt (line voltage). In the polluted air depending on the level of pollution of air the required creepage distance increases.

Flashover distance - It is the shortest distance through air between the electrodes of high voltage pin post insulator 20KV.

Flashover voltage - The voltage at which the air around high voltage pin post insulator 20KV breaks down and flashover takes place shorting the insulator.

Puncture voltage - The voltage at which the high voltage pin post insulator 20KV breaks down and current flows through the inside of ceramic pin post insulator.

Relative Articles:
◆Ceramic pin post insulator 24 kv
◆pin post insulator wholesale
◆Porcelain pin post insulators manufacturer
◆ngk pin post insulator
◆22KV porcelain pin post insulator