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2. Electrical wiring - Wikipedia

   en.wikipedia.org/wiki/Electrical_wiring

   A wire or cable has a voltage (to neutral) rating and a maximum conductor surface temperature rating. The amount of current a cable or wire can safely carry depends on the installation conditions. The international standard wire sizes are given in the IEC 60228 standard of the International Electrotechnical Commission.

3. Hardware store - Wikipedia

   en.wikipedia.org/wiki/Hardware_store

   It is common for a hardware store in the US to repair broken windows and screens, repair power equipment such as lawn mowers, re-key entry locks, make copies of house keys and car keys, re-wire lamps and vacuum cleaners, sharpen knives and cutting tools, make minor repairs to faucet and shower parts, repair kerosene heaters and cut and thread ...

4. 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 ...

5. 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.

6. Aluminum building wiring - Wikipedia

   en.wikipedia.org/wiki/Aluminum_building_wiring

   In the late 1960s problems and failures related to branch circuit connections for building wire made with the utility grade AA-1350 alloy aluminum began to surface, resulting in a re-evaluation of the use of that alloy for building wire and an identification of the need for newer alloys to produce aluminum building wire. The first 8000 series ...

7. Live-line working - Wikipedia

   en.wikipedia.org/wiki/Live-line_working

   Once on the line, the worker is safe from shock as both the lineworker and the wire are at the same electric potential, and hence no current passes through their body. This is the same principle as that which allows birds to safely sit on power lines. [3] When the work is completed, the process is reversed to remove the worker safely from the wire.