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词汇 Strain insulator
分类 英语词汇 英语翻译词典
释义

Strain insulator

英语百科

Strain insulator

Strain insulators on high-voltage power lines
Low-voltage
Pyrex-glass strain insulator used for radio antennas
High-voltage strain insulators used on 66 kV, 230 kV and 115 kV AC lines. The number of insulator skirts varies with voltage and atmospheric conditions.

A strain insulator is an electrical insulator that is designed to work in mechanical tension (strain), to withstand the pull of a suspended electrical wire or cable. They are used in overhead electrical wiring, to support radio antennas and overhead power lines. A strain insulator may be inserted between two lengths of wire to isolate them electrically from each other while maintaining a mechanical connection, or where a wire attaches to a pole or tower, to transmit the pull of the wire to the support while insulating it electrically. Strain insulators were first used in telegraph systems in the mid 19th century.

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