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4 202-10-40 Iss 1.pdf
4 202-10-40 Iss 1Use SHIFT+ENTER to open the menu (new window).
Call Routing Apparatus: Particular Conditions of Contract31/12/1999Withdrawn
Particular conditions of contract for the purchase of call routing apparatus. Although this document has been stamped superseded, it is not known by what.


AWS 10 Iss 1.pdf
AWS 10 Iss 1Use SHIFT+ENTER to open the menu (new window).
Standard & Extra Strength Permanent Magnets for AWS and Temporary Speed Restrictions31/12/1999Withdrawn
This specification relates to permanent magnets, both standard strength and extra strength types, that are used for the AWS at signals, permanent speed restrictions and temporary speed restrictions. NETWORK RAIL DOCUMENT.


AWS 11 Iss 1.pdf
AWS 11 Iss 1Use SHIFT+ENTER to open the menu (new window).
Depot Test Magnet31/12/1999Withdrawn
This specification relates to permanent magnets that are used to test the AWS on vehicles as they leave a traction maintenance depot. NETWORK RAIL DOCUMENT.


AWS 15 Iss 1.pdf
AWS 15 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC Vacuum Horn - Diesel & Electric31/12/1999Withdrawn
This specification relates to the operation of vacuum horns. NETWORK RAIL DOCUMENT.


AWS 16 Iss 1.pdf
AWS 16 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC (AWS) Isolating & Change End Switches31/12/1999Withdrawn
This specification relates to the isolation and change of end switches. NETWORK RAIL DOCUMENT.


AWS 17 Iss 1.pdf
AWS 17 Iss 1Use SHIFT+ENTER to open the menu (new window).
Electro-pneumatic Valve31/12/1999Withdrawn
This specification relates to electro-pneumatic valve usage. NETWORK RAIL DOCUMENT.


AWS 18 Iss 1.pdf
AWS 18 Iss 1Use SHIFT+ENTER to open the menu (new window).
Relay Unit and Junction Box31/12/1999Withdrawn
This specification relates to the relay unit and junction box. NETWORK RAIL DOCUMENT.


AWS 19 Iss 1.pdf
AWS 19 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Reset Plunger31/12/1999Withdrawn
This specification relates to the use of the Reset Plunger. NETWORK RAIL DOCUMENT.


AWS 2 Iss 1.pdf
AWS 2 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC (AWS) Non - Return Valve31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 20 Iss 1.pdf
AWS 20 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Train Control Indicator for Non-steam Stock31/12/1999Withdrawn
This specification relates to Non-steam stock control indictors. NETWORK RAIL DOCUMENT.


AWS 25 Iss 1.pdf
AWS 25 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Electro-Pneumatic Valve Air31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 29 Iss 1.pdf
AWS 29 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS EP Repeat & Horn Relay Unit & Base31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 3 Iss 1.pdf
AWS 3 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC (AWS) Receiver Plugs & Sockets, Receiver Twin Plug Assembly31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 31 Iss 1.pdf
AWS 31 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Electric Horn31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 32 Iss 1.pdf
AWS 32 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Brake & Horn Relay Unit Base31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 35 Iss 1.pdf
AWS 35 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Relays31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 36 Iss 1.pdf
AWS 36 Iss 1Use SHIFT+ENTER to open the menu (new window).
AWS Specification for Static Voltage Converter31/12/1999Withdrawn
Specification on static voltage converters. NETWORK RAIL DOCUMENT.


AWS 37 Iss 1.pdf
AWS 37 Iss 1Use SHIFT+ENTER to open the menu (new window).
Specification for New Pattern Electro Inductors and Suppressor Inductors Standard and Extra Strength31/12/1999Withdrawn
This is a general specification for AWS electro inductors and suppressor inductors. NETWORK RAIL DOCUMENT.


AWS 4 Iss 1.pdf
AWS 4 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC & (AWS)  Receiver Junction Box31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 5 Iss 1.pdf
AWS 5 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC (AWS) Bell Plug & Socket31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


AWS 6 Iss 1.pdf
AWS 6 Iss 1Use SHIFT+ENTER to open the menu (new window).
ATC (AWS) Brake Valve31/12/1999Withdrawn
NETWORK RAIL DOCUMENT.


BR10 Nov 1973.pdf
BR10 Nov 1973Use SHIFT+ENTER to open the menu (new window).
Painting Schedule: Signal Boxes and Signal Department Equipment31/12/1999Withdrawn
This document details the responsibilities for painting exterior and interior equipment including signal boxes.


BR13424 Iss 1.pdf
BR13424 Iss 1Use SHIFT+ENTER to open the menu (new window).
Signalling Maintenance Specification31/12/1999Withdrawn
Index of signalling maintenance specifications.


BR14222 May 1986.pdf
BR14222 May 1986Use SHIFT+ENTER to open the menu (new window).
Painting and Letterin Schedule for British Rail Road Vehicles31/12/1999Withdrawn
This schedule deals with the painting and lettering of British Rail Road Vehicles.


BR1612 Jan 1988.pdf
BR1612 Jan 1988Use SHIFT+ENTER to open the menu (new window).
Specification for Renovation and Construction of Cable Routes01/05/1993Superseded
This specification covers the construction and/or renovation of a cable route consisting in part or whole of surface troughing; buried throughing; elevated troughing, undertrack, under-road and platform duct routes; and associated works.
BR1612 May 1993

BR1612 May 1993.pdf
BR1612 May 1993Use SHIFT+ENTER to open the menu (new window).
Specification for Renovation and Construction of Cable Routes31/12/1999Withdrawn
This specification covers the construction and/or renovation of a cable route consisting in part or whole of surface troughing; buried troughing; elevated troughing; undertrack, under-road and platform duct routes; and associated works.


BR1613 Aug 1993.pdf
BR1613 Aug 1993Use SHIFT+ENTER to open the menu (new window).
Specification for Supply,Joint and Test Optical Fibre Cable31/12/1999Withdrawn
This specification covers the supply, jointing, fibre-end testing, terminating and overall testing of telecommunications cables.


BR1613 Jan 1988.pdf
BR1613 Jan 1988Use SHIFT+ENTER to open the menu (new window).
Specification for Supply, Joints and Test Optical Fibre Cable01/08/1993Superseded
This specification covers the supply, jointing, fibre-end testing, terminating and overall testing of telecommunications cables.
BR1613 Aug 1993

BR1614 Mar 1988.pdf
BR1614 Mar 1988Use SHIFT+ENTER to open the menu (new window).
Specification for Handling and Laying of Telecommunications Cables01/03/1993Superseded
This specification covers the handling and laying of telecommunications cables.
BR1614 Mar 1993

BR1614 Mar 1993.pdf
BR1614 Mar 1993Use SHIFT+ENTER to open the menu (new window).
Specification for Handling and Laying of Telecommunications Cables31/12/1999Withdrawn
This specification covers the handling and laying of telecommunications cables.


BR1647 Jan 1986.pdf
BR1647 Jan 1986Use SHIFT+ENTER to open the menu (new window).
Specification for British Railways Automatic Warning System31/12/1999Withdrawn
This specification defines the functional and performance requirements for a solid state Decoder that is required to replace the existing relay decoder, auxiliary relays and power supply units used in the British Railways Automatic Warning System.


BR1648 Iss 2.pdf
BR1648 Iss 2Use SHIFT+ENTER to open the menu (new window).
Specification for 4 and 8 Port Statistical Multiplexors for use on BRT Data Networks31/12/1999Withdrawn
This specification details the design and performance requirements for a statistical multiplexor providing typically 4 and 8 channels.


BR1649 Sep 1986.pdf
BR1649 Sep 1986Use SHIFT+ENTER to open the menu (new window).
Specification for Dry Plate Capacitors for use with A.C. 50Hz Track Circuits31/12/1999Withdrawn
These capacitors are intended for use on conventional a.c 50Hz track circuits with may or may not contain impedance bonds. Two types of capacitor are specified, giving respectively 12.3 uF and 20 uF nominal total capacitance.


BR1651 Part 1.pdf
BR1651 Part 1Use SHIFT+ENTER to open the menu (new window).
Specification for Fibre Optic Theatre-Type Route indicators31/12/1999Withdrawn
This specification covers the requirements of Alpha Numeric Route Indicators (Theatre) using Fibre Optic light guides.


BR1651 Part 2.pdf
BR1651 Part 2Use SHIFT+ENTER to open the menu (new window).
Specification for Fibre Optic Stencil Indicators31/12/1999Withdrawn
This specification covers the requirements of Alpha Numeric Miniature Route Indicators (Stencil) using Fibre Optic Light guides.


BR1651 Part 3.pdf
BR1651 Part 3Use SHIFT+ENTER to open the menu (new window).
Fibre Optic Banner Signal31/12/1999Withdrawn
This specification covers the requirements for a Banner Signal using Fibre Optic light guides.


BR1651 Part 4 Iss 1.pdf
BR1651 Part 4 Iss 1Use SHIFT+ENTER to open the menu (new window).
Specification for Fibre Optic Position Light Signal31/12/1999Withdrawn
This specification comprises the requirements for the design and manufacture of position light signals utilising fibre optic technology. Such signals are mounted adjacent to the track and used to convey information to drivers regarding low speed train movements. Although this document has been stamped superseded, it is not known by what.


BR1651 Part 5.pdf
BR1651 Part 5Use SHIFT+ENTER to open the menu (new window).
Fibre Optic Train Operated Points Indicator31/12/1999Withdrawn
This specification covers the requirements for Train Operated Points Indicator using Fibre Optic light guides.


BR1679 Iss 1.pdf
BR1679 Iss 1Use SHIFT+ENTER to open the menu (new window).
Specification for Standard Telephone Set for use on British Rail Telecommunications Network31/12/1999Withdrawn
This specification details the requirements of the British Railways Board for simple telephone sets to be connected to the public switched telephone network, the BR Privat Branch Network, and other telephone circuits forming part of the BR telecommunications network.


BR1811 Iss 1.pdf
BR1811 Iss 1Use SHIFT+ENTER to open the menu (new window).
Specification for a Serial Matrix Printer01/07/1993Superseded
This specification details the design and performance requirements for a serial matrix printer for use with British Rail computer terminals in Area Freight Offices, Control Centres, Travel Centres, Train Maintenance Depots and general offices.
BR1811 Jul 1993

BR1811 Iss 2.pdf
BR1811 Iss 2Use SHIFT+ENTER to open the menu (new window).
Specification for Dot Matrix Printer with Serial Interface for use on BRT Data Networks31/12/1999Withdrawn
This specification details the design and performance requirements for a dot matrix printer with serial data interface for use with British Rail computer terminals in Area Freight Offices, Control Centres, Travel Centres, Train Maintenance Depots and general offices.


BR1837 Iss 2.1.pdf
BR1837 Iss 2.1Use SHIFT+ENTER to open the menu (new window).
Specification for Optical Fibre Trunk Telecommunications Cables31/12/1999Withdrawn
This specification sets out the constructional and testing requirements for single-mode or multi-mode optical fibre trunk telecommunications cables containing not more than 32 fibres.


BR1845 Iss H.pdf
BR1845 Iss HUse SHIFT+ENTER to open the menu (new window).
Train to Signalbox Radio System (Fixed Equipment)31/12/1999Withdrawn
This specification describes the general requirements of a Train to Signal Box radio system for British Rail which will operate in the UHF frequency band to provide secure communications between train drivers and signalmen.


BR1847 Iss 2.pdf
BR1847 Iss 2Use SHIFT+ENTER to open the menu (new window).
Specification for British Railways Automatic Warning System31/12/1999Superseded
This specification outlines the principles and describes the operation and equipment of the British Railways Automatic Warning System. Although this document has been stamped superseded, it is not known by what.


BR1863 Apr 1984.pdf
BR1863 Apr 1984Use SHIFT+ENTER to open the menu (new window).
Specification for 2Mbit/s To 8 Mbit/s Digital Multiplex Equipment31/12/1999Withdrawn
This specification details the requirements for Second Order Digital Multiplex Equipment.


BR1864 Apr 1984.pdf
BR1864 Apr 1984Use SHIFT+ENTER to open the menu (new window).
Specification for 8 Mbit/s to 34 Mbit/s Digital Multiplex Equipment Technical Specification31/12/1999Withdrawn
This specification details the requirements for Third Order Digital Multiplex Equipment.


BR1865 Apr 1984.pdf
BR1865 Apr 1984Use SHIFT+ENTER to open the menu (new window).
Specification for 34/68 Mbit/s To 140 Mbit/s Digital Multiplex Equipment31/12/1999Withdrawn
This specification details the requirement of a Fourth Order Digital Multiplex Equipment.


BR1878 Iss B.pdf
BR1878 Iss BUse SHIFT+ENTER to open the menu (new window).
Specification for the Use of Visual Display Units for Railway Signalling Control and Indication Purposes01/02/1992Superseded
This specification defines the requirements of the user of a signalling control and indications system based on colour visual display units (VDU's).
BR1878 Iss C

BR1878 Iss C.pdf
BR1878 Iss CUse SHIFT+ENTER to open the menu (new window).
Operating Specification for the use of Visial Display Units for Railway Signalling Control and Indication Purposes31/12/1999Withdrawn
This specification defines the requirements of the user of a signalling control and indications system based on colour visual display units (VDU's).


BR1914 Iss E.pdf
BR1914 Iss EUse SHIFT+ENTER to open the menu (new window).
General Specification for Permitted Electrical Interference Produced by Traction and Rolling Stock01/04/1994Superseded
This specification covers the requirements for the maximum permitted levels of current or voltage produced by the electrical system that will not give rise to unacceptable interference to signalling and telecommunication equipment.
GSES1914 Iss 1

BR1929 Iss 1.pdf
BR1929 Iss 1Use SHIFT+ENTER to open the menu (new window).
Development and Supply of Data Radio for Networker Rolling Stock31/12/1999Withdrawn
This specification details the requirements for the development of a duplex radio to act as the interface between an on-train data system and a WAN connected to British Rail's Train - signalbox Radio Systems.


BR1934 Iss 1.pdf
BR1934 Iss 1Use SHIFT+ENTER to open the menu (new window).
Specification for Optical - Fibre Tail Cable31/12/1999Superseded
This specification defines the requirements for an optical fibre internal cable containing a single optical fibre for use in transmission systems up to 565 Mbit/s, between the cable termination point and the Line Termination Equipment.
GKES1934 Iss 2

BR1942 Iss 3.pdf
BR1942 Iss 3Use SHIFT+ENTER to open the menu (new window).
Systems Specification for BR AWS22/06/1998Superseded
This specification outlines the principles and describes the operation and equipment of the British Railways Automatic Warning System. Only the basic system is covered in detail with a brief account of the major variations being given in the Appendices e.g. use in dc electric traction areas; extended applications.
GKRT0364 Iss 1

BR1946 Iss 1.pdf
BR1946 Iss 1Use SHIFT+ENTER to open the menu (new window).
BR Automatic Warning System Production and Service Test Specification Lightweight Twin Reciever for Class 373 and 92 Vehicles31/12/1999Withdrawn
This specification covers the production and service test requirements for the British Railways Automatic Warning System (AWS) Lightweight Twin Reciever.


BR1947 Iss 1.pdf
BR1947 Iss 1Use SHIFT+ENTER to open the menu (new window).
Br Automatic Warning System Production and Service Test Specification for AWS LED Indicator for Class 373 and 92 Vehicles31/12/1999Withdrawn
This specification covers the test requirements for an AWS Led Visual Indicator to be used in the driver's cab of a class 373 and class 92 Channel Tunnel vehicles.


BR1993 Iss 1.pdf
BR1993 Iss 1Use SHIFT+ENTER to open the menu (new window).
Specification for Radio Frequency Coaxial Feeder Cable with Zero-Halogen Low-Smoke Sheath for Railway Telecommunications01/02/1993Superseded
This specification describes the desirable construction and the electrical, mechanical and fire performance of Radio Frequency Feeder Cable to be used for Underground Communications purposes.
GKES1993 Iss 2

BR3000 Jan 1992.pdf
BR3000 Jan 1992Use SHIFT+ENTER to open the menu (new window).
Track Circuit Adjustment Resistors31/12/1999Withdrawn
This specification applies to adjustable resistance units for use with track circuits. The specification is generic with appendices for particular requirements.


BR3001 Feb 1991.pdf
BR3001 Feb 1991Use SHIFT+ENTER to open the menu (new window).
Specification for 50/0.25mm Cables with Pre-formed Terminations for Track Circuit Rail Connections31/12/1999Withdrawn
This specification covers the production of single core signalling cables with pre-formed terminations for making track circuit rail connections.


BR3007 Iss 2.pdf
BR3007 Iss 2Use SHIFT+ENTER to open the menu (new window).
Standard Maintenance Conditions for BR Maintained Telecommunications Equipment31/12/1999Withdrawn
This specification details the standard maintenance conditions for BR maintained telecommunications equipment. Although this document has been stamped superseded, it is not known by what.


BR3060 Jul 1993.pdf
BR3060 Jul 1993Use SHIFT+ENTER to open the menu (new window).
BR Specification Index01/10/1993Superseded
Index of BR specifications.
BR3060 Oct 1993

BR3060 Nov 1992.pdf
BR3060 Nov 1992Use SHIFT+ENTER to open the menu (new window).
BR Specification Index01/07/1993Superseded
Index of BR Specifications
BR3060 Jul 1993

BR3060 Oct 1993.pdf
BR3060 Oct 1993Use SHIFT+ENTER to open the menu (new window).
BR Specification Index31/12/1999Withdrawn
Index of BR specifications.


BR817 Oct 1979.pdf
BR817 Oct 1979Use SHIFT+ENTER to open the menu (new window).
Specification for Electro-Hydraulic Power Equipment for Point Operation31/12/1999Withdrawn
This specification is for electro-hydraulic power packs and linear actuator units for use in operating the movable tongues of railway track points by high pressure oil hydraulics.


BR820 Aug 1974.pdf
BR820 Aug 1974Use SHIFT+ENTER to open the menu (new window).
Specification for Colours of Light Signals, Colour Filters and Lenses31/12/1999Withdrawn
This specification covers the requirements for colours of light signals and the colourimetric and photometric requirements for colour filters and lenses used in connection with signalling on British Railways and road traffic signals at level crossings.


BR829 Jan 1981.pdf
BR829 Jan 1981Use SHIFT+ENTER to open the menu (new window).
Specification for Plugboards for Miniture Relay Units for Railway Signalling Purposes31/12/1999Withdrawn
This document details the specification for plugboards for miniture relay units for railway signalling purposes.


BR831 Feb 1987.pdf
BR831 Feb 1987Use SHIFT+ENTER to open the menu (new window).
Specification for Connectors for BR Miniture Relays31/12/1999Withdrawn
This specification relates particularly to connectors for miniture plug-in relays, but standard connectors are required for use in similar situations; for example, the plug couplers for geographical relay sets.


BR863 Jan 1992.pdf
BR863 Jan 1992Use SHIFT+ENTER to open the menu (new window).
Specification for Impedance Bonds for use with 50Hz Double Rail Track Circuits and Audio Frequency Track Circuits31/12/1999Withdrawn
This specification applies to air cooled impedance bonds for use on lines having d.c electric traction at 600 to 1500 volts.


BR865 Jul 1990.pdf
BR865 Jul 1990Use SHIFT+ENTER to open the menu (new window).
Specification for Tansformer-Rectifier Units for General Railway Signalling Purposes31/12/1990Withdrawn
This specification applies to transformer-rectifier units, suitable for general railway signalling purposes, whose nominal mean output voltage does not exceed 175 V irrespective of input voltage and output current rating.


BR902 Nov 1970.pdf
BR902 Nov 1970Use SHIFT+ENTER to open the menu (new window).
Specification for Electrical Requirements of High Voltage Electric Point Machines for Railway Signalling Purposes31/12/1999Withdrawn
The object of this specification is to codify those electrical requirements of point machines driven by a high voltage electric motor which are not defined by B.S.581.


BR903 Oct 1992.pdf
BR903 Oct 1992Use SHIFT+ENTER to open the menu (new window).
Specification for Electrical Requirements for Standard Colour Light Signals31/12/1999Withdrawn
This specification covers the signal head wiring and the various items of equipment required for a complete electrical system for lighting and proving lamps in colour light signals.


BR904 Oct 1977.pdf
BR904 Oct 1977Use SHIFT+ENTER to open the menu (new window).
Specification for Feed Set for AC Immune DC Track Circuit using Relay to BR Specification 939A01/07/1990Withdrawn
This feed set is intended for use with a Track Relay to BR specification no. 939A and is suitable for ballast resistances from infinity to 3 ohms.


BR906 Apr 1994.pdf
BR906 Apr 1994Use SHIFT+ENTER to open the menu (new window).
24 Volt D.C Double Pole Contactor for BR Lifting Barriers31/12/1999Withdrawn
This specification relates to a 24 Volt d.c double pole contactor and overload cut-out suitable for operating the hydraulic power unit for BR Lifting Barriers.


BR922 Apr 1994.pdf
BR922 Apr 1994Use SHIFT+ENTER to open the menu (new window).
Technicians Strength and Polarity Meter for use with Automatic Warning System Standard Strength and Extra Strength Track Magnets31/12/1999Withdrawn
This specification applies to a technicians meter for measuring the magnetic field strength and polarity of A.W.S standard strength and extra strength track magnets. The magnetic field from the A.W.S magnets is DC.


BR923A Feb 1964.pdf
BR923A Feb 1964Use SHIFT+ENTER to open the menu (new window).
Specification for Moving Iron Direct Current Polar Line Relays for Railway Signalling31/12/1999Withdrawn
This specification covers moving iron direct current polar line relays for railway signalling. It provides for relays having up to two contact arms as standard. Relays having contact arrangements or resistances different from those regarded as standard may be obtained to this specification by arrangement between the Purchaser and Manufacturer.


BR930 Aug 1981.pdf
BR930 Aug 1981Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature DC Neutral Line Relay (Plug-in Type) for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature d.c. neutral line relays of the plug-in type for use in railway signalling circuits.


BR931A Aug 1971.pdf
BR931A Aug 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature AC Immune DC Neutral Line Relay, Plug-in Type for Railway Signalling31/12/1999Withdrawn
This specification relates to design requirements for A.C. immune miniature tractive armature D.C. neutral line relays of the plug-in type for use in railway signalling circuits.


BR932A Sep 1971.pdf
BR932A Sep 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature, AC Immune DC Biased Neutral Line Relay, Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature D.C biased neutral line relays of the plug-in type for use in railway signalling circuits irrespective of the presence in the circuit of alternating current at industrial frequency.


BR933A Sep 1971.pdf
BR933A Sep 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature AC Immune DC Slow Pick-up Neutral Line Relay Plug-In Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to the design requirements of miniature tractive armature D.C. slow pick-up neutral line relays for use in railway signalling circuits, irrespective of the presence in the circuit of alternating current at industrial frequency.


BR934A Sep1971.pdf
BR934A Sep1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature AC Immune DC Slow Release Neutral Line Relay Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature D.C slow release neutral line relays of the plug-in type for use in railway signalling circuits, irrespective of the presence in the circuit of alternating current at industrial frequency. The design is based on the requirement that the delay is sufficiant to cover the changeover time of an A.C immunised neutral line relay manufactured in accordance with B.R. Specification No. 931A.


BR938A Sep 1971.pdf
BR938A Sep 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature DC Neutral Track Relay, Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature D.C neutral track relays of the plug-in type for use in railway signalling circuits.


BR939A Sep 1971.pdf
BR939A Sep 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature AC Immune DC Neutral Track Relay, Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature A.C immune D.C neutral track relays of the plug-in type for use in railway signalling circuits.


BR940 May 1972.pdf
BR940 May 1972Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature DC Single Wound Lamp Proving Relay, Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for a miniature tractive armature slow release line relay of the plug-in type for use in signalling circuits energised by a battery or rectified a.c. supply.


BR941 May 1972.pdf
BR941 May 1972Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature AC Lamp Proving Relay Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for a miniature tractive armature slow release line relay of the plug-in type for use in 110v signalling circuits, incorporating a rectifier feed unit, and suitable for use with S.L.34 or S.L.35 lamps to B.S. 469.


BR942 May 1972.pdf
BR942 May 1972Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature AC Lamp Proving Relay, Plug-in Type, for use with Relay Signalling Position Light Junction Indicators31/12/1999Withdrawn
This specification relates to design requirements for a miniature tractive armature line relay of the plug-in type for use in 11OV signaling circuits, incorporating a rectifier feed unit, and suitable for use with 11Ov 25w lamps. It is intended to be used without an external resistor and with a lamp circuit having characteristics such that under extreme variations of lamp consumption and supply voltage the line currents will meet the operating values specified in Clause 18.2.


BR943 Feb 1971.pdf
BR943 Feb 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Travtive Armature AC Immune DC Biased Contactor Relay, Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature d.c. biased neutral contactor relays of the plug-in type for use in railway signalling circuits irrespective of the presence in the control circuit of alternating current at industrial frequency.


BR944 Iss 1.pdf
BR944 Iss 1Use SHIFT+ENTER to open the menu (new window).
Supplement to Specs. for All Relays or Equivalent Items where Pin Codes Lie in the Range 1-252, 566-1060 or 6001-621003/10/1998Withdrawn
BR944 will be superseded by GKGN0630 Issue One on 3 October 1998.


BR949 May 1972.pdf
BR949 May 1972Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature D.C. Non-Safety Time Delay Relay Unit; Plug-in Type, for use in Point Control Circuits31/12/1999Withdrawn
The specification relates to design requirements for a D.C. miniature non-safety type of relay unit incorporating a device which delays the operation of a relay for a predetermined time after the unit is energised.


BR960 Sep 1981.pdf
BR960 Sep 1981Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature D.C Neutral Line Relay Unit (Plug-in Type) for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature twin tractive armature d.c neutral line relays of the plug-in type for use in railway signalling circuits.


BR961 Feb 1972.pdf
BR961 Feb 1972Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Twin Tractive Armature A.C. Immune D.C. Biased Neutral Line Relay Unit, Plug-in Type, for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature twin tractive armature A.C. immune D.C. biased neutral line relays of the plug-in type for use in railway signalling circuits.


BR963 Oct 1971.pdf
BR963 Oct 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Twin Tractive Armature D.C. Slow-Acting Neutral Line RElay Unit, Plug-In Type, for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature twin tractive armature D.C slow acting neutral line relays of the plug-in type for use in railway signalling circuits


BR968 Dec 1971.pdf
BR968 Dec 1971Use SHIFT+ENTER to open the menu (new window).
Specification for Miniature Tractive Armature D.C Neutral Track Relay for use with Aster Type 'U' Plug-in Type for Railway Signalling Purposes31/12/1999Withdrawn
This specification relates to design requirements for miniature tractive armature D.C neutral track relays of the plug-in type for use in railway signalling circuits.


BR991 Nov 1994.pdf
BR991 Nov 1994Use SHIFT+ENTER to open the menu (new window).
Flashing Signal Aspect Control Unit31/12/1999Withdrawn
This specification related to a unit designed to supply a pulsating current to signal lamps, such that the signal aspect appears to flash. The supply to the signal lamp is pulsated rather than interrupted so as to improve the operating conditions of the lamp.


CP1 Iss 1.PDF
CP1 Iss 1Use SHIFT+ENTER to open the menu (new window).
Code of Practice for the Down Proving Relays31/12/1999Superseded
Code of Practice for the Down Proving Relays.
GKRC0706 Iss 1 (Part B)

CP4 Iss 3.pdf
CP4 Iss 3Use SHIFT+ENTER to open the menu (new window).
Code of Practice for the Registration, Inspection & Statutory Examination of Closed Circuit Television Camera Hoist Mechanisms31/12/1999Withdrawn
This instruction relates to the hoist mechanism fitted to Closed Circuit Television Camera Columns situated at level crossings.


CP8 Iss 1.pdf
CP8 Iss 1Use SHIFT+ENTER to open the menu (new window).
Signal Sightings01/07/1991Superseded
Code of Practice for Signal Sightings.
JDPC005 Iss 1

CPPM004 Iss 3.pdf
CPPM004 Iss 3Use SHIFT+ENTER to open the menu (new window).
Registration, Inspection and Statutory Examination of CCTV Camera Coloumn Hoist Mechanism31/12/1999Withdrawn
Instructions relating to the hoist mechanism fitted to CCTV coloumns situated at level crossing installation registration and statutory examination of the mechanisms which includes the winch box, wire rope, pulley system, locking mechanism and camera platform.


EHH008 Iss 1.PDF
EHH008 Iss 1Use SHIFT+ENTER to open the menu (new window).
The Connection of Test or Monitoring Instruments to Vital Signalling Systems31/12/1999Withdrawn
This document may be ordered individually or as part of the complete handbook.


EHH201 Iss 1.pdf
EHH201 Iss 1Use SHIFT+ENTER to open the menu (new window).
Instructions to Staff Seeking Evidence of cause of Serious Railway Accident04/10/1997Superseded
This docuemtn may be ordered individually or as part of the complete handbook.
GORT3434-2 Iss 1

EHH204 Iss 1.pdf
EHH204 Iss 1Use SHIFT+ENTER to open the menu (new window).
Management of Incidents04/10/1997Superseded
The instruction is to ensure that, in the event of a serious incident, procedures are in hand for managing and where appropriate for the independent investigation of the incident.
GORT3434-2 Iss 1

GKEHA200 Iss 9.pdf
GKEHA200 Iss 9Use SHIFT+ENTER to open the menu (new window).
Engineers Handbook - Alphabetical Index31/12/1999Withdrawn
The alphabetical index engineers handbook. Although this document has been stamped superseded, it is not known by what.


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