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Anoverhead cable is a cable for thetransmission of information, laid onutility poles. Overheadtelephone andcable TV lines are common in North America. These poles sometimes carryoverhead power lines for the supply ofelectric power.Power supply companies may also use them for an in-housecommunication network. Sometimes these cables are integrated in theground or power conductor. Otherwise an additional line is strung on the masts.
Cables are arranged on poles with the most dangerous cables, that is, those carrying power, strung highest. Overhead cable systems also include a number of different components for managing signal cables. These includesplicing systems that allow multi-conductor cables for distributing telephone signals andsnowshoe-shaped devices for reversing the direction of cables.
When metal-based telephone wires are strung on the same utility poles as the power lines, they can pick upnoise from the power line. Modernfiber optic telephone cable has the advantage that it can be strung next to power lines without interference.
In heavily populated regions of the UK, the only overhead cable that would be visible is the telephone line. Power cables and fiber-optic cables that deliver television and broadband services are buried underground. The lesser populated regions of the UK, the countryside for example, will have overhead power cables. Although it is safer to keep the cables underground, it would be difficult to repair a line if a fault were to develop.
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