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In order to prevent fire as well as electrocution, insulation is used around electrical wiring to prevent sparks or electrical charges that could hurt people or their property.

There are many types of wiring insulation, rubber being one of the most effective. Ceramic is another inert material that possesses strong insulating properties. Both of these materials have their drawbacks, however. One is expense. During the Second World War, after the Japanese Empire invaded and occupied the rubber-producing regions of Southeast Asia, rubber became an expensive commodity.

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9y ago

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