Fog type insulators composite suspension insulator is a main kind anti-pollution suspension insulator, and can be used in contamination areas or on transmission and distribution lines with high mechanical and electrical strength.

Mechanism of Contamination Flashover for fog type insulators composite suspension insulator:
• Buildup of contamination on insulator surface
• Light wetting of the pollution on the insulator surface
• Buildup of leakage current on the surface
• Formation of scintillating arcs and associated audible noise level increases
• Formation of dry bands and buildup of electrical stress
• Sparking discharges across the dry bands
• The joining of the discharges to form a complete flashover

If a fog type insulators composite suspension insulator would be used, then the recommended minimum size is minimum breaking load. The minimum recommended strengths are based on the requirement to achieve a design life comparable to other line components

Relative Articles:
◆fog type suspension insulators,120KN anti-pollution suspension ceramic insulator
◆90KN anti-pollution disc suspension insulator
◆120KN porcelain fog type disc suspension insulator
◆Aerodynamic fog type disc insulator
◆fog type disc insulators double-shed type
◆IEC 120kn porcelain fog type porcelain disc suspension insulators