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ASTM D1459-93(2003)

Current Revision

Standard Specification for Silicone Varnished Glass Cloth and Tape for Electrical Insulation

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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.


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.


SDO ASTM: ASTM International
Document Number D1459
Publication Date March 10, 2003
Language en - English
Page Count 3
Revision Level 93(2003)
Supercedes
Committee D09.07
Publish Date Document Id Type View
March 10, 2003 D1459-93R03 Revision
Nov. 10, 1998 D1459-93R98 Reaffirmation