【正文】 ...................................................................................... .....5 3 Def i ni ti ons ...............................................................................................................6 System s ..........................................................................................................6 Conductors ......................................................................................................7 El ectri cal .........................................................................................................9 Mechani cal .................................................................................................... 10 Support ......................................................................................................... 11 Com ponent ................................................................................................... . 11 Current col l ecti on .......................................................................................... 12 4 Ov erhead contact l i ne system s ................................................................................ 12 General ......................................................................................................... 12 System desi gn ............................................................................................... 12 Ov erhead l i ne equi pm ent and ponents ..................................................... . 12 Instal l ati on desi gn .......................................................................................... 13 Constructi on .................................................................................................. 13 5 System desi gn ....................................................................................................... 13 Fundam ental desi gn data ............................................................................... 13 Requi rem ents of the ov erhead contact l i ne system ........................................... 15 Presentati on of the desi gn .............................................................................. 26 Dem onstrati on of conf orm i ty .......................................................................... . 27 6 Ov erhead contact l i ne equi pm ent and ponents ................................................... 27 General ......................................................................................................... 27 Insul ators ...................................................................................................... 28 Groov ed contact wi re ..................................................................................... 29 Other wi res................................................................................................... . 30 Droppers ....................................................................................................... 30 Supporti ng assem bl i es ................................................................................... 31 Cl am ps, spl i ces and other i nl i ne tensi on f i tti ngs .............................................. 32 El ectri cal connecti ons ...................................................................... .............. 33 Secti oni ng dev i ces ......................................................................................... 33 Swi tches and protecti on dev i ces ..................................................................... 34 Tensi oni ng dev i ces ........................................................................................ 34 Regi strati on assem bl i es ................................................................................. 34 Fi x ed anchor restrai nts ................................................................................... 35 Structures ..................................................................................................... 35 Foundati ons ................................................................................................. . 36 Presentati on and drawi ng standards ................................................................ 37 7 Instal l ati on desi gn ................................................................................................. . 37 General ......................................................................................................... 37 Route detai l s ................................................................................................. 37 Secti oni ng ..................................................................................................... 37 Layout ........................................................................................................... 38 Presentati on .................................................................................................. 38 Dev i ati on f rom system and ponent desi gn ................................................. 39 EN 50119:2020 4 8 Constructi on .......................................................................................................... 39 Cl i ent i nterf aces ............................................................................................ 39 Pri nci pal m ethodol ogi es ................................................................................. 40 Redundant m ateri al di sposal ........................................................................... 40 Re m ended m ateri al suppl i ers ................................................................... 40 Acceptance param eters .................................................................................. 41 Energi zati on noti ce ..................................................