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25kv Railway Polymer Insulator

We can provide different kinds of end fitting combination for 25kv railway polymer insulator, to make sure our customers satisfied.

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Product Details

1.Technical data of 25kv railway polymer insulator


Rated voltage


Rated mechanical bending load


Min nominal creepage distance


1min power frequency wet withstand voltage (kV)

Full wave lightning impulse withstand voltage peak value (kV)







25kv railway polymer insulator

2.Materials of 25kv railway polymer insulator advantage: 

1). Each 25kv railway polymer insulator is tested before shipment.

2). The 25kv railway polymer insulator with fine internal and external insulating ability.

3). It is not so easy to be damaged in the course of transporting and installing.

4). High tracking resistance silicone rubber used for sheathing.

5). Unique self-cleaning property, reduced maintenance cost.

3.Regularly clean the 25kv railway polymer insulator


During the long-term operation of the transmission line, a layer of impurities is attached to the surface of the transmission line, which causes certain damage to the insulation performance of the 25kv railway polymer insulator. Therefore, in order to ensure the insulation performance of the insulator, the cleaning work can be performed to insulate the insulator surface. The impurities are removed. Moreover, while cleaning, the insulator should be carefully inspected to see if there are any defects such as cracks and damage on the surface. When problems are found, they should be replaced in time.

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