BS 442:1950
Current
The latest, up-to-date edition.
Specification for terminals for electrical apparatus for railway signalling purposes
Hardcopy , PDF
English
30-12-1950
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Co-operating organizations
Foreword
1 Scope
2 Definition
3 General
4 Screw threads
5 Components and assembly
6 Materials and finish
Main terminals, not terminals inside apparatus. Nut, screw, insulated screw types, materials, dimensions, manufacturing requirements.
| Committee |
GEL/9
|
| DevelopmentNote |
Reviewed and confirmed by BSI, November 2008. (10/2008)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard applies to the main terminals on electrical apparatus for railway signalling purposes, to which cables external to the apparatus are connected. It is not intended to apply to terminals inside the apparatus.
Terminals of both the nut and the screw type, and of the insulated screw type, are specified.
| Standards | Relationship |
| UNE-EN 3475-704:2002 | Identical |
| UNE-EN ISO 11542-2:1999 | Identical |
| BS 519:1950 | Specification for tractive armature direct current neutral-polar line relays for railway signalling |
| BS 581:1950 | Specification for electrically-driven point-operating machines for railways |
| BS 1745:1951 | Specification for alternating-current relays for railway signalling: track relays (double-element, 2-position), line relays (single-element, 2-position) |
| BS 3347:1961 | Specification for capacitors for railway signalling track circuits |
| BS 1659:1950 | Specification for tractive armature direct current neutral track and line relays for railway signalling |
| BS 561:1951 | Specification for alternating-current line relays double-element 3-position (for railway signalling) |
| BS 57:1951 | Specification. B.A. screws bolts and nuts |
| BS 93:1951 | Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A. |
| BS 488(1948) : LATEST | MOULDED INSULATING MATERIALS FOR GENERAL ELECTRICAL PURPOSES |
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