NEMA HP 3:2012

This standards publication covers specific requirements for PTFE (polytetrafluoroethylene) insulated solid and stranded wire designed for the internal wiring of high reliability electrical and electronic equipment. This Standards Publication addresses 250 volt (Type ET), 600 volt (Type E) and 1000 volt (Type EE) wire and permits continuous conductor temperature ratings of -65 ° C to +200 ° C with silvercoated conductors and -65 ° C to +260 ° C with nickel-coated conductors. These types of hook-up wire are used when the following properties are called for: -- High temperature resistance -- Low temperature resistance -- Low dielectric constant -- Solder iron resistance -- Resistance to cleaning solutions or a variety of chemicals that may come in contact with either the wire or the equipment -- Good flexibility and flex life when stranded conductors are used