The NEC is developed by NFPA's Committee on the National Electrical Code, which consists of 19 (20 in 2008) code-making panels and a technical correlating committee.Work on the NEC is sponsored by the National Fire Protection Association.The NEC is approved as an American national standard by the American National Standards Institute (ANSI). It is formally identified as ANSI/NFPA 70. First published in 1897, the NEC is updated and published every three years.he NEC is approved as an American national standard by the American National Standards Institute (ANSI). It is formally identified as ANSI/NFPA 70. First published in 1897, the NEC is updated and published every three years.
Neoprene or polychloroprene is a family of synthetic rubbers that are produced by polymerization of chloroprene.Neoprene exhibits good chemical stability and maintains flexibility over a wide temperature range.eoprene is produced by free-radical polymerization of chloroprene. In commercial production, this polymer is prepared by free radical emulsion polymerization. Polymerization is initiated using potassium persulfate.
In other words, neoprene is made through a chemical reaction using chloroprene. It is chloroprene that binds all the molecules of this reaction together, leaving us with polychloroprene chips. These chips are melted and mixed together with foaming agents and carbon pigments, and then baked in an oven to make it expand.n technical terms neoprene is a type of polymer (a large molecule composed of repeating structural units) known as polychloroprene that is produced by the polymerization (chemical reaction) of chloroprene (an organic compound of colourless liquid with the formula CH2=CCl-CH=CH2).