Telephony, Vol. 4 of 6: A Manual of the Design, Construction, and Operation of Telephone Exchanges; The Construction of Aerial Lines (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from Telephony, Vol. 4 of 6: A Manual of the Design, Construction, and Operation of Telephone Exchanges; The Construction of Aerial Lines

The pole line is the Oldest form of electrical circuit and is so familiar as seemingly to merit but slight attention. Owing to its cheapness the pole line is universally adopted Where but a few circuits are needed, and as it is subjected to destructive forces of greater number and intensity than those which prey upon conduit lines, there is more oppor tunity to exercise ingenuity in the construction of the best line for the least expense.

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