1 Acronym Finder. 2015. 2  AcronymFinder.com 13 Oct. 2015 http://www.acronymfinder.com/Provider-Transaction-Access-Number-(medicare-reimbursements)-(PTAN).html. 3  Chicago style: Acronym Finder. 4  S.v.
The U.S. National Electric code and Canadian Electric Code mandates only white or grey color be used for neutral wires. The International Electrotechnical Commission and countries that abide by it, such as the United Kingdom, use blue for the wiring color code for neutral wire of AC branch circuit. Continue Reading
And although these markings tell you what type and size of wire you have, the color of the wires will reveal that different color wires serve different purposes. The most common wire color code is black. Black wires are always used for hot wires and may feed a switch or outlet.Most important, Black Wires are never used as a Neutral or Ground connection. Red wires are also used for hot wires or switch legs.n instances such as this, the white HOT wire should be properly marked on the end with red or black electrical tape to show that it is being used for something other than a neutral. With the right knowledge about electrical wire color coding, every project should be a safe one!