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NR BR 950

Specification for Design of Electronic Equipment General Requirements to Secure Reliability

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Organization: NR
Status: active
Page Count: 7
scope:

This specification is concerned with laying down the rating of components, the pre-assembly testing of active components, inspection, soldering, construction and wiring, and the "soak" testing of completed units.

Document History

NR BR 950
Specification for Design of Electronic Equipment General Requirements to Secure Reliability
This specification is concerned with laying down the rating of components, the pre-assembly testing of active components, inspection, soldering, construction and wiring, and the "soak" testing of...

References

This document is referenced by:
NR BR 1828 - Automatic Revenue Collection Car Park Control Equipment (Pay and Display)
Published by NR on June 1, 1981
This document specifies the technical requirements for a car park control system using pedestrian prepayment pay and display equipment.
This document is referenced by:
NR BR 946 - Specification for Miniature Tractive Armature DC Neutral Time Delay Relay for Railway Signalling Purposes
Published by NR on January 1, 1981
The time shall be obtained from the discharge of an capacitor into a coil of a tractive armature relay conforming to specifications of the BR 930 series The users attention is drawn to the fact that...
This document is referenced by:
NR BR 1900 - General Specification for Solid State Inter-locking Equipment
Published by NR on May 1, 1986
Introduction This specification states the standards to be applied in the design, construction and testing of solid state interlocking and associated equipment.
This document is referenced by:
NR BR 928 - Specification for Charger for 24 Volt Battery 110 Volt or 240 Volt 50 Hz Supply
Published by NR on October 1, 1977
GENERAL The charger is intended to float charge a standby battery for 'Aster' Type ‘U' track circuit equipment. It must be capably of charging a discharged battery at the same time as supplying a...
This document is referenced by:
ACC/CAT/CO/001 ISSUE 130 - Catalogue of Network Rail Standards (aka NR/CAT/STP/001)
December 2, 2023
A description is not available for this item.
This document is referenced by:
NR/GN/SIG/CAT006 - Index of NR Documents Relating to Signalling & Communications Equipment
Published by NR on June 2, 2012
This standard represents historical information and best practice for equipment and systems that are still found on the infrastructure. This is not a mandatory standard and users should check...
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