Most recent
ASTM D1305-16(2022)
Standard Specification for Electrical Insulating Paper and Paperboard - Sulfate (Kraft) Layer Type
1.1This 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:
1.1.1Soft Coil Wrap,
1.1.2Dense Coil Wrap,
1.1.3Kraft Coil Insulation,
1.1.4Dry-Finished Kraft, and
1.1.5Water-Finished Kraft.
1.2The 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.
1.3This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Content Provider
ASTM International [astm]
