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  2. Electrical wiring in North America - Wikipedia

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

    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 with ridged, grooves or white stripes on the surface of lamp cord. With transparent cord the hot wire is copper colored, and the neutral is silver colored.

  3. Arc-fault circuit interrupter - Wikipedia

    en.wikipedia.org/wiki/Arc-fault_circuit_interrupter

    An AFCI does not detect high line voltage caused by an open neutral in a multiwire branch circuit. A multiwire branch circuit uses both energized wires of a 120–240 V split phase service. If the neutral is broken along the return path to the circuit breaker panel, devices connected from a 120 V leg to the neutral may experience excess voltage ...

  4. Bootleg ground - Wikipedia

    en.wikipedia.org/wiki/Bootleg_ground

    A receptacle with a bootleg ground. In building wiring installed with separate neutral and protective ground bonding conductors (a TN-S network), a bootleg ground (or a false ground) is a connection between the neutral side of a receptacle or light fixture and the ground lug or enclosure of the wiring device.

  5. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    The failure of a neutral fuse would cut off power flow through the affected circuit, but the hot conductor could still remain hot relative to ground, an unexpected and potentially hazardous situation. Because of the presence of a neutral fuse, and in the event that it blew, the neutral conductor could not be relied on to remain near ground ...

  6. Power cord - Wikipedia

    en.wikipedia.org/wiki/Power_cord

    A lamp cord (also known as a zip cord) is a light-weight, ungrounded, single-insulated two-wire cord used for small loads such as a table or floor lamp. A cord set includes connectors molded to the cord at each end (see Appliance coupler). Cord sets are detachable from both the power supply and the electrical equipment, and consist of a ...

  7. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Joints were soldered, and special fittings were used for lamp holders and switches. These cables were similar to underground telegraph and telephone cables of the time. Paper-insulated cables proved unsuitable for interior wiring installations because very careful workmanship was required on the lead sheaths to ensure moisture did not affect ...

  8. Ground and neutral - Wikipedia

    en.wikipedia.org/wiki/Ground_and_neutral

    The neutral conductor receives and returns alternating current to the supply during normal operation of the circuit; to limit the effects of leakage current from higher-voltage systems, the neutral conductor is often connected to earth ground at the point of supply.

  9. Electrical wiring in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_the...

    It contains three conductors, two of which are insulated (line and neutral), and it is from this that the name twin and earth derives. Steel-wire armoured (SWA) Steel wire protected cable, mandatory for outdoor or buried use unless equivalent protection is provided via containment. Flex Refers to the flexible cord of a portable appliance.