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  2. Overhead power line - Wikipedia

    en.wikipedia.org/wiki/Overhead_power_line

    Overhead insulated cables are rarely used, usually for short distances (less than a kilometer). Insulated cables can be directly fastened to structures without insulating supports. An overhead line with bare conductors insulated by air is typically less costly than a cable with insulated conductors. A more common approach is "covered" line wire.

  3. Pothead - Wikipedia

    en.wikipedia.org/wiki/Pothead

    A three phase electric circuit terminated with a pothead Crossarms with two three phase electric circuits terminated with potheads. A pothead is a type of insulated electrical terminal used for transitioning between overhead line and underground high-voltage cable or for connecting overhead wiring to equipment like transformers. [1]

  4. Overhead line - Wikipedia

    en.wikipedia.org/wiki/Overhead_line

    It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment (OLE or OHLE), overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire. An overhead line consists of one or more wires (or rails, particularly in tunnels) situated over ...

  5. National Electrical Safety Code - Wikipedia

    en.wikipedia.org/wiki/National_Electrical_Safety...

    This step-by-step guide explains how to apply and meet the NESC rules for electrical supply stations and equipment, as well as overhead and underground electric supply and communications lines. The 2023 NESC Course Program is a series of online courses that take an in-depth look at the rules, regulations, and changes made in the 2023 NESC Edition.

  6. Optical ground wire - Wikipedia

    en.wikipedia.org/wiki/Optical_ground_wire

    An optical ground wire (also known as an OPGW or, in the IEEE standard, an optical fiber composite overhead ground wire) is a type of cable that is used in overhead power lines. Such cable combines the functions of grounding and communications .

  7. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 61394 Overhead lines – Requirements for greases for aluminium, aluminium alloy and steel bare conductors; IEC 61395 Overhead electrical conductors – Creep test procedures for stranded conductors; IEC 61400 Wind turbines; IEC 61427 Secondary cells and batteries for renewable energy storage – General requirements and methods of test

  8. Strain insulator - Wikipedia

    en.wikipedia.org/wiki/Strain_insulator

    A strain insulator is an electrical insulator that is designed to work in mechanical tension (strain), to withstand the pull of a suspended electrical wire or cable. They are used in overhead electrical wiring, to support radio antennas and overhead power lines. A strain insulator may be inserted between two lengths of wire to isolate them ...

  9. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    In both those instances the white wire should be identified as being hot, usually with black tape inside junction boxes. The neutral wire is identified by gray or white insulated wire, perhaps using stripes or markings. With lamp cord wire the ribbed wire is the neutral, and the smooth wire is the hot. NEC 2008 400.22(f) allows surface marking ...

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