مواد عایق برق Electrical insulating materials

Electrical insulating materials

مواد عایق برق

ABSTRACT

Electrical insulating materials ensure the integrity of desired paths of electromagnetic power flow in electrical systems and equipment . They are materials at very high resistivity and can thus be used as isolators or separator between conductors having different potential (voltage) levels . In its use such as in isolators an insulating materials has the basic function of confining the current flow within the conductive circuit of a given device or part of equipment thus protecting the latter from short circuit current leakage and similar undesirable malfunctions . insulating materials may be solid liquid or gaseous substances , they may be monolithic ( discrete ) materials or may be constituted by physically cohesive composites structured with multiple constituents . Based on the primary functions electric insulation can be categorized as follows :

• Separation-type insulation
• Barrier insulation
• Creepege insulation