Registration number (WIID)Project No.TitleStatus
54888prEN 50XXXTrolleybuses - Collection system to overhead contact lineIzstrādē
54957LVS EN 50121-2:2002Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway system to the outside worldAtcelts
54957EN 50121-2:2000Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway system to the outside worldAtcelts
55009LVS EN 50405:2007Railway applications - Current collection systems - Pantographs, testing methods for carbon contact stripsAtcelts
55009EN 50405:2006Railway applications - Current collection systems - Pantographs, testing methods for carbon contact stripsAtcelts
55023LVS CLC/TS 50459-4:2006Railway applications - Communication, signalling and processing systems - European Rail Traffic Management System - Driver- Machine Interface - Part 4: Data entry for the ERTMS/ETCS/GSM-R systemsAtcelts
55023CLC/TS 50459-4:2005Railway applications - Communication, signalling and processing systems - European Rail Traffic Management System - Driver-Machine Interface - Part 4: Data entry for the ERTMS/ETCS/GSM-R systemsAtcelts
55054EN 50149:2001/corrigendum May 2010Railway applications - Fixed installations - Electric traction - Copper and copper alloy grooved contact wiresAtcelts
55054LVS EN 50149:2002 /AC:2010Railway applications - Fixed installations; Electric traction - Copper and copper alloy grooved contact wiresAtcelts
55185LVS ENV 50129:1998Railway applications - Safety related electronic systems for signallingAtcelts
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