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The major, or primary group of colors consists of the sequence of white, red, black, yellow, and violet (mnemonics Why Run Backwards, You'll Vomit). [3] The minor, or secondary color is chosen from the sequence blue, orange, green, brown, and slate (mnemonics B ell O perators G ive B etter S ervice [ 4 ] ).
A mnemonic which includes color name(s) generally reduces the chances of confusing black and brown. Some mnemonics that are easy to remember: Big Boys Race Our Young Girls But Violet Generally Wins. Better Be Right Or Your Great Big Venture Goes West. [1] Beetle Bailey Runs Over Your General Before Very Good Witnesses.
For power circuits, the color-coding uses the same colors as residential construction, and adds the additional wires used for three-phase systems. Black, Red and Blue are used for hot wires and White is used as the neutral wire in a 120/208 V circuit. Brown, Orange and Yellow are used as hot wires and gray is used as the neutral wire in a 277/ ...
In fixed wiring, the blue/brown scheme is only found in newer (post-2004) installations, and the old IEE red/black scheme is likely to be encountered in existing installations for many more decades. Earlier in the 20th century, green and blue were used as a neutral alongside black, which became the only neutral colour from 1943.
A third pair consists of white tip coding and blue ring coding. For larger cable assemblies more complex schemes, such as the 25-pair color code , are used. Some telephone technicians used mnemonic phrases, such as red-right-ring-rear , or ring-right-red-rough , to remember that the red wire connects to the right-side post in the wall jack and ...
The bird was once on the endangered species list, but conservation efforts led to it being taken off in 2007. This article originally appeared on USA TODAY: Bald eagle officially recognized as ...
Grand Strand residents may have seen little black-and-white birds turning up in the Myrtle Beach area and along the coast. ... 3-year-old shares adorably sweet message before dad marries mom. News ...
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