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BS 4145:1967

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Specification for glass mica boards for electrical purposes

Requirements for two types of board for electrical purposes made from glass bonded mica powder, from ⅛ in (3.2 mm) up to ½ in (12.7 mm) in thickness. Definitions, classifications, finish, flatness, thickness, electric strength proof test in oil, surface electric strength proof test in air, insulation resistance, carbon arc test, spirit burner test, water absorption, deformation under compression, shear strength and cross breaking strength. Methods of test given in appendices.

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Pages: 22

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  • BS EN 60371-1:2003

    Specification for insulating materials based on mica, Definitions and general requirements

  • BS EN 60371-2:2004

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  • BS EN 60371-3-1:2006

    Specification for insulating materials based on mica, Specifications for individual materials, Commutator separators and materials

  • BS EN 60371-3-2:2006

    Insulating materials based on mica, Specifications for individual materials, Mica paper

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Pages: 22

BS 4145:1967

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