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Homepage>ASTM Standards>29>29.035>29.035.10>ASTM D1305-16R22 - Standard Specification for Electrical Insulating Paper and Paperboard—Sulfate (Kraft) Layer Type
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Released: 01.05.2022

ASTM D1305-16R22 - Standard Specification for Electrical Insulating Paper and Paperboard—Sulfate (Kraft) Layer Type

Standard Specification for Electrical Insulating Paper and Paperboard—Sulfate (Kraft) Layer Type

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Standard number:ASTM D1305-16R22
Released:01.05.2022
Status:Active
Pages:4
Section:10.01
Keywords:alcohol-soluble material; aqueous extract conductivity; ash; chlorides; conducting paths; density; dielectric breakdown voltage; paper; paperboard; pH; tensile strength; unbleached sulfate kraft ;
DESCRIPTION

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.

1.3 This 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.