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Show Number of Wires In Cable. If you watch men drawing a lead-covered lead-covered cable Into the conduits which form a network nnder city streets It Is usually not long before you hear some one ask : "How many wires are there In the cable?" That there may be some variation in the number of the wires Is easily guessed, but few realize how wide a discrepancy In the number there may be. Tuke, for example, two sections that are by no meuns extremes but give some Idea of the range. One Is of a telephone cable containing 28 dozen pairs of C24 wires, each pair wrapped with paraffined par-affined paper and the whole entwined ' In such a way that plenty of air space ; Is left between the wires. The other, i Is a 20,000-volt cable for a three-phase power transmission circuit, such as Is used for conveying power from the ccn-' ccn-' trnl stations to the scattered dlstrlb-' dlstrlb-' utlnx (stations In some of our lnrce cities. This has the copper cables - Imbedded In a solid muss of rubber I or gutta percha, with no air spaces whatever, the number of conductors being only three Instead of C24. |