Aktívna norma | Vydaná: 31.03.1967

BS 4145:1967

Specification for glass mica boards for electrical purposes.

Dostupné jazyky: Anglicky

Dostupné prevedenie: PDF - okamžité stiahnutie, Tlačené

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Podrobné informácie

Označenie: BS 4145:1967

Dátum vydania: 31.03.1967

Stránok: 22

Krajina: Britská technická norma

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Anotácia

Requirements for two types of board for electrical purposes made from glass bonded mica powder, from 1/8 in (3.2 mm) up to 1/2 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. Status: Confirmed

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