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The width of devices that are mounted on a 35 mm "top hat" DIN rail generally use "modules" as a width unit, one module being 18 mm wide. For example, a small device (e.g. a circuit breaker) may have a width of 1 module (18 mm wide), while a larger device may have a width of 4 modules (4 × 18 mm = 72 mm).
The numbers relate to pages in the detailed Table A diagrams. Exceptionally poor rail adhesion. This is a list of known areas for exceptionally poor railhead conditions. It states the route, location, lines affected, and the mileage references between which it occurs. Table A diagrams
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Download as PDF; Printable version; In other projects ... Key to symbols. Heavy rail Metro or light rail In use ... under construction Tunnel Some diagrams may use ...
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A copy of the 2002 edition of the National Routeing Guide. The railway network of Great Britain is operated with the aid of a number of documents, which have been sometimes termed "technical manuals", [1] because they are more detailed than the pocket-timetables which the public encounters every day.
Proto and finescale rails and wheels are generally not compatible with the normal scale model railway material with the same scale ratio. Proto scale was originally developed by the Model Railway Study Group in Great Britain in 1966 and later adopted into NMRA standards with modifications necessary for the North American prototype railway ...
This file is licensed under the United Kingdom Open Government Licence v3.0.: You are free to: copy, publish, distribute and transmit the Information; adapt the Information; ...