Description
Post insulators are used as support for bus-bars in transformer sub-station yards, in switchgear as support for breakers, and for capacitor banks.
Post insulator is a High Voltage (HV) type of insulator which is designed based on the IEC, ANSI and other standards. Composite post insulators are used for bus-bars, air switches or for other special applications.
General
- Ratings: up to 252kV.
- Application: for lines supporting and insulation of power transmission & distribution system.
- Standard: IEC 62217:2005, IEC 62231:2006, ANSI, etc.
Working Condition
- Ambient air temperature: -50℃~+50℃
- Altitude: ≤3000m
- Frequency: ≤100Hz
Product Features
- High mechanical strength: Post insulators face compression, torsion and bending forces every day. As a result, the insulator must have high mechanical properties to overcome these forces, or it would simply collapse and cost more to replace.
- Solid and puncture-proof: Being in an atmospheric space and exposed to pollution, rain, and other natural phenomena make them at risk of being damaged due to punctures.
- Made of aluminum oxide ceramic and porcelain: The insulator’s material should be pure insulator as well as high strength properties. We use aluminum oxide ceramics as they have well insulating properties.
- Flexible creepage distance: The post insulators should have a reasonable creepage distance that will not endanger the integrity of the insulating path. This distance shields against tracking.
