The paper presents the issues of assessing the state of the electromagnetic environment at the Intercity locomotive depot in Warsaw Olszynka Grochowska. The assessment of the electromagnetic environment was carried out in relation to the currently applicable permissible levels contained in normative documents. The basis for assessing the emission of extraneous disturbances (background) is the value of the electromagnetic field strength of radio disturbances around moving railway objects located at the measurement site.Railway moving objects such as electric locomotives, electric multiple units, passenger carriages, and fixed objects such as signal boxes, containers, equipment cabinets, and locomotive depots constitute a specific electromagnetic environment from the point of view of the modern electronic devices installed there.
Devices operating in this environment should not interfere with each other, and in particular, electrical devices powered by 3kV DC voltage. They should not introduce excessive electromagnetic disturbances emitted to the outside, which may affect the conditions prevailing, for example, in the locomotive depot.
The increasing saturation of rolling stock with electronic devices naturally necessitates the coexistence of these devices in the electromagnetic environment.
Electronic devices must not generate electromagnetic disturbances at levels higher than those permissible as defined in standards, but they must also possess a specific immunity to various electromagnetic disturbances. This feature is referred to as electromagnetic compatibility.
By electromagnetic disturbances, we mean all disturbances across the entire frequency spectrum; in this case, the subject of consideration will be the frequency range from 9kHz to 1GHz, and therefore we refer to them as radio disturbances. (…)
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Source: Logistyka Magazine