scope:

Specifies the emission and immunity requirements for all types of rolling stock. It covers traction stock and trainsets, as well as independent hauled stock. The frequency range considered is from d.c. to 400 GHz. At present, testing is not defined for frequencies above 1 GHz. The limits in this Prestandard do not apply to intentional communication signals (radio communications, track/vehicle transmissions,...). The scope of this part of the prestandard ends at the interface of the stock with its respective energy inputs and outputs. In the case of locomotives, trainsets etc., This is the sliding contact (or the third rail), in case of hauled stock this is the a.c. or d.c. auxiliary power connector. However, since the pantograph is part of the tractive stock, it is not entirely possible to exclude the effects of this interface. The electromagnetic interference concerning the railway system as a whole is dealt with in ENV 50101-2. These specific provisions are additional to the general provisions in ENV 50121-1.