Insulator PDF
Composite insulator,polymer insulator,silicone rubber insulator
Composite insulator is made of silicone rubber, which is a polymer material. It is called composite insulator since it has three parts made together. The silicone rubber is over moulded on injection onto the fiber glass core rod. Before vulcanization, the fiber glass rod is crimped with end fittings, and after vulcanization, second crimping of end fittings is needed in order to give enough mechanical strength.
Advantages of composite polymer insulator:
Better anti-pollution ability because of silicone rubber material
Higher power frequency flashover wet voltage than porcelain insulator
The polymer insulator has much lighter weight, easy to transportation and installation
We are an high quality composite insulator manufacturer, all material is chosen from internation known companies, and we process silicone rubber ourselves, make end fitting of the silicone rubber insulator ourselves, extrude the fiber glass rod ourselves, we can control all quality process exactly and improve the delivery time a lot on each batch.
Fig 1 Fig 2
Until now we have developped full types of composite polymer insulator:
Refer to Fig 1- composite long rod insulator
Used on high voltage or ultrahigh voltage power system to hang conductors. Composite long rod high voltage insulator is the most important type.
Refer to Fig 2- composite pin insulator
Used for high voltage line facilities. Top and bottom of polymer pin insulator installed are the same as the corresponding size of porcelain insulator.
Fig 3 Fig 4 Fig 5
Refer to Fig 3 - composite post insulator
Used on substations and used to insulation and connection between conductive body and grounding body.
Refer to Fig 4 - composite cross arm insulator
Used on the innovation of urban electrical network and has advantages of high strength, small volume and light weight.
Refer to Fig 5 – composite electrical railway insulator
Used on railway system to suspend or support the electric wires in order to provide safe working condition for the train or subway.