Question

The substance used in the manufacture of high voltage insulators is  ​

Answer 1

Explanation:

silicons are used in the manufacture of high voltage insulators.

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Answer 2

Answer:

Glass, porcelain or composite polymor materials

Explanation:

Insulators used for high-voltage power transmission are made from glass, porcelain or composite polymer materials. Porcelain insulators are made from clay, quartz or alumina and feldspar, and are covered with a smooth glaze to shed water.