Special insulation materials, such as Glass yarn, Polyester-Glass yarn and Kapton, are lapped on bare conductors/tube or enameled wire for both rectangular and round wire and then, impregnated with epoxy.

With the partially cured epoxy - insulating material after winding, the wires are adhered to each other during processing in the baking oven to provide a very strong finished product. This special insulated rectangular wires are used for generators and special motors which require superior heat and vibration resistance.

Single or Double Glass Yarn Insulated Rectangular Wire

Non-Alkali glass yarn (E class) has superior physical characteristics and heat resistance and is used for nuclear power generators and traction motors.

Polyester-Glass Yarn Insulated Rectangular Wire

Polyester-glass yarn has excellent physical characteristics, superior heat resistance and especially superior flexibility thus it is predominantly used for stator coil of turbine generator.

Mica Tape Insulated Rectangular Copper Wire

Mica-Polyester compounds generally comprise Mica paper on which a polyester film coat (PETP) is spread using an epoxy resin. Mica paper is a type of paper composed only of small strips of Mica with no admixture or bonding material (100% Mica).

Sam Dong supplies a comprehensive range of mica covered rectangular copper wires that are extensively used in the electrical and electronic industry. Our range is available in various standard as well as customized specifications at industry leading places.

Mica or PET + Mica Covered Rectangular Copper Wire is suitable for class ‘F’ (155°) insulation and it is applicable for manufacturing fields as below.

Application of Mica Covered Rectangular Conductors

• High & Low Voltage Motors
• Generator windings
• Dry Type Transformers

Enamel - Glass Yarn Insulated Rectangular Wire

Enamel-glass yarn insulated rectangular wire is enameled, covered by glass yarn then, impregnated with epoxy. Such a wire is mostly used for generators as well as industral motors, designed for high thermal and mechanical loads at high operation voltages.

Kapton Insulated Rectangular Wire

Kapton (Polyimide film) insulated rectangular wire is designed for use in applications involving high operating thermal & voltage and such wire is used in aerospace and automotive applications, relays and traction motors, etc.