Fibre Glass Covered Wire

Covered fibre glass wire

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Fiberglass covered copper wire, also known as magnet wire, is a type of electrical wire that combines the excellent electrical conductivity of copper with the superior insulation properties of fiberglass. This insulating material is moisture and chemical resistant. Its common applications are heat treatment, glass and ceramic furnaces, foundries, and a wide range of applications in aluminium processing.

Classification and Specifications:
Fiberglass covered copper wire is typically classified based on its temperature rating and insulation type. The temperature rating indicates the maximum operating temperature at which the wire can perform reliably. Common temperature ratings include Class 130 (130°C), Class 155 (155°C), and Class 180 (180°C).

The insulation type can vary, and different insulation materials offer specific properties suitable for diverse applications. Common insulation materials used for fiberglass covered copper wire include polyurethane (PU), polyamide-imide (PAI), and polyesterimide (PEI).

Chemical Composition and Tensile Strength:
The core conductor of fiberglass covered copper wire is made of high-quality copper, known for its excellent electrical conductivity. The copper conductor provides low resistance, enabling efficient electrical transmission.

The insulation material, usually fiberglass, is composed of finely woven glass fibers. These fibers are impregnated with an insulating resin to enhance the wire's mechanical and electrical properties. The resin used in the insulation is typically a thermosetting material, which provides excellent thermal stability and resistance to aging.

The tensile strength of fiberglass covered copper wire varies depending on the wire diameter and insulation thickness. Generally, it exhibits high tensile strength, allowing for reliable and durable installations.