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
If the two wires are white and black, the black is hot and the white is neutral. If the wires are red and black, the red is hot and the black is neutral. Red and black are usually reserved for direct current, rather than alternating current, which is used in households.So it&#039;s unlikely to find this color combination in your home.Look for plus (+) and minus (-) symbols on the wires.f the wires are red and black, the red is hot and the black is neutral. Red and black are usually reserved for direct current, rather than alternating current, which is used in households. So it&#039;s unlikely to find this color combination in your home. Look for plus (+) and minus (-) symbols on the wires.