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2. 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. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association.

3. Electrical wiring in North America - Wikipedia

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

   Electrical switch. Earthing systems. v. t. e. Electrical wiring in North America follows the regulations and standards applicable at the installation location. It is also designed to provide proper function, and is also influenced by history and traditions of the location installation. The US National Electrical Code is applicable to many areas ...

4. Electrical wiring - Wikipedia

   en.wikipedia.org/wiki/Electrical_wiring

   Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric ...

5. Electronic color code - Wikipedia

   en.wikipedia.org/wiki/Electronic_color_code

   A 2.26 kΩ, 1%-precision resistor with 5 color bands (), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the tolerance (1%).. An electronic color code or electronic colour code (see spelling differences) is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others.

6. Twist-on wire connector - Wikipedia

   en.wikipedia.org/wiki/Twist-on_wire_connector

   "Wire Connecter" U.S. patent 1,896,322, Filed November 24, 1930, Patented February 7, 1933; Color code. This table shows the de facto standard color coding various manufacturers use [citation needed] to indicate the range of sizes of conductors that may be joined with twist-on wire connectors. There is a slight variation in capacity at the ...

7. 25-pair color code - Wikipedia

   en.wikipedia.org/wiki/25-pair_color_code

   The 25-pair color code, originally known as even-count color code, is a color code used to identify individual conductors in twisted-pair wiring for telecommunications. Color coding [ edit ]