1.1 This specification covers electrical grade unsized, unbleached sulfate paper and paperboard for use as layer insulation in coils, transformers, and similar apparatus. Other applications include, but are not limited to, turn insulation, slot liners, wedges, phase insulation, and separator papers in stranded wire/cable constructions. Tissue for the manufacture of capacitors is not included in this specification. Other commonly used designations include:
1.1.1 Soft Coil Wrap,
1.1.2 Dense Coil Wrap,
1.1.3 Kraft Coil Insulation,
1.1.4 Dry-Finished Kraft, and
1.1.5 Water-Finished Kraft.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
ASTM D1305-16 Referenced Document
ASTM D1711 Standard Terminology Relating to Electrical Insulation
ASTM D202 Standard Test Methods for Sampling and Testing Untreated Paper Used for Electrical Insulation
ASTM D1305-16 history
2022ASTM D1305-16(2022) Standard Specification for Electrical Insulating Paper and Paperboard—Sulfate (Kraft) Layer Type
2016ASTM D1305-16 Standard Specification for Electrical Insulating Paper and Paperboard—Sulfate (Kraft) Layer Type
1999ASTM D1305-99(2009) Standard Specification for Electrical Insulating Paper and Paperboard-Sulfate (Kraft) Layer Type
1999ASTM D1305-99(2004) Standard Specification for Electrical Insulating Paper and Paperboard-Sulfate (Kraft) Layer Type
1999ASTM D1305-99 Standard Specification for Electrical Insulating Paper and Paperboard-Sulfate (Kraft) Layer Type