access icon free Manufacture of tempered-glass insulators

Author(s): J. S. T. Looms
Source: Insulators for High Voltages, p. 66-69
Publication date January 1988

The scope of the glass-insulator manufacturing processes is very much narrower than for porcelain. At present the use of toughened glass is confined to cap-and pin insulators or those types, such as railway pedestals and multiple-cone posts, which can be assembled from disc-like modules. In practice, therefore, the manufacture of toughened-glass insulators is con fined to the following stages: mixing the ingredients; melting the glass; forming and heat-treating the discs; elimination of defective pieces; attachment of metal fittings. It is evident that such simplicity cries out for long runs of standard pieces, and that, when these conditions are fulfilled, cheap and good insulators may be expected.

Inspec keywords: insulators; glass; glass manufacture

Other keywords: high voltage insulators; tempered-glass insulators; glass-insulator manufacturing processes

Subjects: Power line supports, insulators and connectors

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