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insulator |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.07 sec. |
insulatorSubstance that blocks or retards the flow of electric current or heat. An insulator is a poor conductor because it has a high resistance to such flow. Electrical insulators are commonly used to hold conductors in place, separating them from one another and from surrounding structures to form a barrier between energized parts of an electric circuit and confine the flow of current to wires or other conducting paths. Electrical insulators include rubber, plastic, porcelain, and mica. Thermal insulators. which break up the heat-flow path by absorbing radiant heat, include fiberglass, cork, and rock wool. insulatorA material that does not conduct electricity. Contrast with conductor. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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By wrapping the wire with loose paper, he had in reality cushioned it with AIR, which is the best possible insulator. |
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