High tension porcelain disc suspension insulator own good tensile strength. Porcelain disc suspension insulator end fittings are manufactured of malleable iron or ductile iron.

High tension porcelain disc suspension insulator:
A permanently flexible coating on the inside of suspension top protects the suspension from chemical attack by the cement. The coating also provides more uniform distribution of working stresses in the insulator components.

                 
 High tension porcelain disc suspension insulator     porcelain disc suspension insulator             

Porcelain disc suspension insulators shells:
Proven manufacturing techniques provide the finest quality porcelain to ensure uniformly high mechanical and electrical strength.
Each class of insulator has been designed with the unique configurations required to develop the required electrical and mechanical performance.
All exposed surfaces are glazed to provide a smooth hard finish, which is easily cleaned of contaminants, and which significantly enhances the mechanical strength.
Glaze-bonded sand surfaces on the porcelain provide reliable gripping areas for the cement to develop the full strength of the insulator.

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