Locke transposition insulator (Niagara line)

NEW

Apparatus

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Appliances.

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TRANSPOSITION INSULATORS.

The accompanying illustration shows a type of transposition insulator and two-pin breakarm specially adapted for telephone lines where the highest of insulation is required. It has been used with much success for telephone lines run on the same poles with high-voltage long-distance power transmission lines, in one case the telephone line being strung within 4-1/2 ft. of lines carrying alternating current of 15,000 volts, which, it is needless to say, is a very severe test. The insulator is applicable anywhere that two lines are fastened to one insulator, and aside from its high insulating qualities, is strong and durable. It is in use on the Cataract Construction Company's lines between Niagara Falls and Buffalo and hundreds of others.

The insulator and break-arm illustrated are made by Fred. M. Locke, Victor, N. Y.

Transposition Insulators.

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