Cotton Covered Copper Conductors

Cotton is one of the most useful, naturally occurring insulators and is used from ancient time for heat resistance. However, it also has moderate electrical insulation properties in dry condition. In certain low voltage applications, cotton yarn is used as wrap-around insulators, which proved to be long lasting, flexible and tough insulation. Cotton yarn soaked in impregnating resins and cured properly can be used for critical applications like servo stabilizer windings, magnet coils etc.