BS 1858:1973

Superseded

View Superseded by

Specification for bitumen-based filling compounds for electrical purposes

Available format(s)

Hardcopy , PDF

Superseded date

14-02-2002

Language(s)

English

Published date

03-10-1973

Publisher

British Standards Institution

Cooperating organizations
Foreword
Specification
1. Scope
2. Classification
3. General requirements
4. Solubility
5. Softening point
6. Penetration
7. Viscosity of Class I compound
8. Pouring point of compounds of Classes II to VI
9. Electric strength (proof) test
10. Flash point (open)
11. Mineral matter (ash)
12. Acidity: neutralization value
13. Freedom from injurious sulphur
14. Adhesive properties
15. Contraction and depth of pipe
16. Segregation test for Class VI compound
Appendices
A. Solubility of Class VI compound
B. Pouring point of compounds of Classes II to VI
C. Electric strength (proof) test
D. Mineral matter (carbonated ash) for Class VI
compound
E. Injurious sulphur
F. Adhesive properties
G. Contraction and depth of pipe
H. Segregation test for Class VI compound
Tables
1. Classification
2. Tolerance on softening point
3. Penetration at 25 deg C
4. Tolerance on penetration
5. Electric strength (proof) test requirements
6. Mineral matter
7. Contraction
8. Mould temperatures
Figures
1. Folded filter paper
2. Apparatus for determination of pouring point
arranged for electrical heating
3. Valve, holder and stirrer
4. Container for compound and jet
5. Outer vessel for electrical heating
6. Outer vessel for gas heating
7. Apparatus for electric strength (proof) test
8. Apparatus for determination of adhesive properties
9. Glass tube for contraction and depth of pipe

Compounds based on bitumen or natural asphalt. Not applicable to oils, oil resisting compounds, cold pouring compounds. Classified by softening points. Electrical and physical properties; tests.

Committee	GEL/15
DevelopmentNote	OBSOLESCENT - CURRENT FOR EXISTING EQUIPMENT, NOT FOR USE WITH NEW DESIGNS
DocumentType	Standard
Pages	20
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS 1858:2002
Supersedes	BS 803(1938) : LATEST BS 688(1936) : LATEST

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