WG 44 - TC 9/WG 44

IEC 62498-1:2010 covers the use of on board electrical, electromechanical and electronic equipment for rolling stock, for the following parameters:
- altitude,
- temperature,
- humidity,
- air movement,
- rain,
- snow and hail,
- ice,
- solar radiation,
- lightning,
- pollution,
- vibrations and shocks,
- electromagnetic interference environment,
- acoustic noise environment,
- supply system characteristics.
IEC 62498-1 defines:
- interface conditions between the vehicle and its environment;
- general environmental rules for the equipment of rolling stock, especially for the main sub-systems. The contents of the corrigendum of November 2010 have been included in this copy.

IEC 62498-3:2010 covers the design and the use of equipment and any portable equipment for signalling and telecommunications systems (including test, measure, monitoring equipment, etc.). The contents of the corrigendum of November 2010 have been included in this copy.

IEC 62498-2:2010 deals with the environmental influences on fixed electrical installations for traction power supply and equipment essential to operate a railway:
- in open air;
- in covered areas;
- in tunnels;
- within enclosures placed in the above-mentioned areas.
Such influences include altitude, temperature and humidity, air movement, rain, snow, hail, ice, sand, solar radiation, lightning, pollution, vibration, shocks, EMC and earthquakes. The contents of the corrigendum of November 2010 have been included in this copy.