page_title: Overhead power line
section_title: Low voltage
hierarchical_section_title: Overhead power line / Low voltage
caption_attribution_description: Another pole nearby An aerial bundled cable (ABC) seen at Keston Avenue, Old Coulsdon, London Borough of Croydon. On the nearer pole, the conductors are brought down the pole and then run underground to the houses supplied.
context_page_description: An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy across large distances. It consists of one or more uninsulated electrical cables suspended by towers or poles.
  Since most of the insulation is provided by the surrounding air, overhead power lines are generally the least costly method of power transmission for large quantities of electric energy.
context_section_description: Low voltage overhead lines may use either bare conductors carried on glass or ceramic insulators or an aerial bundled cable system. The number of conductors may be anywhere between two (most likely a phase and neutral) up to as many as six (three phase conductors, separate neutral and earth plus street lighting supplied by a common switch); a common case is four (three phase and neutral, where the neutral might also serve as a protective earthing conductor).
caption: Aerial bundled cable in Old Coulsdon, Surrey
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