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Environmental Conditions, EN50125 - Printable Version +- IRSE Exam Forum (https://irse.signalpost.org) +-- Forum: MODULES (https://irse.signalpost.org/forumdisplay.php?fid=3) +--- Forum: Module 7 (https://irse.signalpost.org/forumdisplay.php?fid=10) +---- Forum: Specific topics (https://irse.signalpost.org/forumdisplay.php?fid=85) +---- Thread: Environmental Conditions, EN50125 (/showthread.php?tid=1116)

Environmental Conditions, EN50125 - PJW - 05-11-2012 EN50125-3 considers three situations: T1 (warm temperate, warm dry) T2 (Cold temperate) and TX (Cold) Gives information about the environment in which equipment should be able to perform- · Pressure (altitude, pulse pressure due to tunnel etc) · Temperature (extremes, rate of change) · Humidity (ambient, in cubicle, in shelter, in building, sudden rate of change) · Wind (natural, passing trains) · Rain (also considered combined with wind) · Snow and Hail (all types of snow, driven snow by wind / vehicles passing and on board) · Ice · Solar radiation · Lightning · Pollution (chemical, biologically active, mechanically abrasive, electrically conductive) · Fire protection · Vibration (energy level, distribution across frequency range) · Shocks (for mounting: on rail, on sleeper, in ballast, trackside) · Electromagnetic Compatibility (victim, source) · Power Supply (spec, tolerance of voltage and frequency)