ASTM D 1305 Standard Specification for Electrical Insulating Paper and Paperboard - Sulfate (Kraft) Layer Type

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ASTM D 1305 Document Information:

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

ASTM International

Publication Date:
Mar 10, 1999

Scope:

This specification covers electrical grade unsized, unbleached sulfate paper and paperboard for use as layer insulation in coils, transformers, and similar apparatus. Other applications may 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:

Soft Coil Wrap,

Dense Coil Wrap,

Kraft Coil Insulation,

Dry-Finished Kraft, and

Water-Finished Kraft.

Keywords:

alcohol-soluble material

aqueous extract conductivity

ash

chlorides

conducting paths

density

dielectric breakdown voltage

paper

paperboard

pH

tensile strength

unbleached sulfate kraft

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