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  2. Knob-and-tube wiring - Wikipedia

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

    Knob-and-tube wiring (sometimes abbreviated K&T) is an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s.

  3. National Electrical Code - Wikipedia

    en.wikipedia.org/wiki/National_Electrical_Code

    The National Electrical Code, 2008 edition. The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States.

  4. Building inspection - Wikipedia

    en.wikipedia.org/wiki/Building_inspection

    A building inspection is an inspection performed by a building inspector, a person who is employed by either a city, township or county and is usually certified in one or more disciplines qualifying them to make professional judgment about whether a building meets building code requirements.

  5. Electrical wiring in North America - Wikipedia

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

    Electrical wiring practices developed in parallel in many countries in the late 19th and early 20th centuries. [7] As a result, national and regional variations developed and remain in effect. (see National Electrical Code, electrical wiring, electrical wiring in the United Kingdom). Some of these are retained for technical reasons, since the ...

  6. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    The earliest standardized method of wiring in buildings, in common use in North America from about 1880 to the 1930s, was knob and tube (K&T) wiring: single conductors were run through cavities between the structural members in walls and ceilings, with ceramic tubes forming protective channels through joists and ceramic knobs attached to the ...

  7. National Inspection Council for Electrical Installation ...

    en.wikipedia.org/wiki/National_Inspection...

    Have competence with test instruments as outlined by Part 6 ("Inspection and Testing") of BS 7671; the IET Wiring Regulations; Have public liability insurance of at least £2m. Have professional indemnity insurance of at least £250k if certified for periodic inspection.

  8. Electrical safety testing - Wikipedia

    en.wikipedia.org/wiki/Electrical_safety_testing

    Visual inspection. A survey without touching anything, and looking at the electrical installation or product before starting any electrical testing. A visual inspection seeks to identify damaged insulation, disconnected wires, incorrect installation, and any other visual issues. Dead testing. Continuity test: a test to check the wiring is correct

  9. Talk:Knob-and-tube wiring - Wikipedia

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

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