【国外标准】 Standard Specification for Silicone Varnished Glass Cloth and Tape for Electrical Insulation (Withdrawn 2009)

This specification establishes the requirements for two types of clear silicone varnished glass fabrics in the form of sheets, rolls, and tapes for use as electrical insulation. Type A fabrics are used where electrical properties are primarily required, while Type B fabrics are used where physical properties are primarily required. The glass fabric shall be treated with a baking type of silicone varnish so as to penetrate the fabric and produce a smooth, non-tacky surface, substantially free of wrinkles, creases, blisters, and other imperfections. The products shall be sampled, tested, and conform accordingly to specified physical (breaking strength), dimensional (nominal thickness, width, length, and core), thermal (temperature index), electrical property (dielectric strength, breakdown voltage, and dissipation factor and permittivity) requirements.1.1 This specification covers clear silicone varnished glass fabrics in the form of sheets, rolls, and tapes for use as electrical insulation.1.2 The product covered by this specification shall be designed to conform to Class 180 electrical insulating materials as classified by IEEE Standard No. 1.1.3 The values stated in inch-pound units are to be regarded as the standard except temperature which is stated in degrees celsius.