Anti-pollution Glass Insulators Vs Standard Glass Insulators: How To Choose?

People wear different clothes In humid, foggy mountainous areas and dry, rainless plains. Similarly, glass insulators on power lines must also be “adapted to local conditions.”

1. What are anti-pollution glass insulators?

Anti-pollution glass insulators are specially designed for environments with high pollution, high humidity, fog, or salt spray. Through special structural optimization and surface treatment, their anti-pollution flashover performance has been enhanced and they are ensured to maintain stable insulation performance even in harsh climates.

Main features:

- More complex shed structure: Features deep ridges and multi-layers design to increase creepage distance and prevent contaminants and moisture from forming conductive pathways.  

- Anti-fouling coating: Some glass insulators are coated with hydrophobic materials such as silicone rubber to reduce moisture adhesion and lower the risk of contamination flashovers.  

- Suitable for harsh environments: Ideal for industrial pollution zones, coastal salt fog areas, and foggy, humid regions.

2. What are the standard glass insulators?

Standard glass insulators are the most common type and are suitable for clean or lightly polluted environments. Their structure is relatively simple, relying on the self-cleaning properties of glass (rainwater washing) and high mechanical strength to ensure long-term stable operation.

Key features:

- Smooth shed: Short creepage distance, suitable for dry, low-pollution areas.

- No special coating: Relies on the natural hydrophobicity of glass, which can self-clean when there is little dirt.

- Economical: Low cost, suitable for power transmission lines in normal climatic conditions.

3. How to choose the right glass insulators?

- When to use anti-pollution glass insulators:  

Power transmission lines pass through chemical plants, mining areas, and coastal regions with severe air pollution.  

The climate is foggy, rainy, and humid, making it prone to pollution flashovers.  

There are extremely high requirements for power supply reliability, and the risk of pollution flashovers must be reduced.

- Situations where standard-type insulators are selected:

The line is located in inland, dry, and low-pollution areas.

Budget constraints exist, and the environment has minimal impact on insulator contamination.

Maintenance is convenient, and regular manual cleaning is feasible.