stylized class electric locomotives built successor swedish mining company railway division class variation product platform related later platform locomotives haul iron ore freight trains line sweden norway respectively long ton short ton car trains hauled single ended locomotives power output operates pounds force effort maximum speed mph delivery series locomotives replaced aging units vehicles double units ordered production completed time double units ordered units scheduled delivered history line iron ore line railroad lines built allow iron ore hauled mines sweden baltic_sea sweden norway historically lines operated norwegian state railways norway swedish state railways sweden operations infrastructure transferred new company joint venture norwegian subsidiary time line locomotives estimated steady increase iron ore production requested governments grant sufficient funding upgrade lines long ton short ton long ton short ton maximum permitted axle load combined new locomotives increased efficiency hauling ore mines upgrade estimated cost million norwegian nok line march awarded contract build new cars august agreement reached pay nok million nok million needed upgrade line contract deliver locomotives signed september bought share sections delivered august subjected intensive tests manufacture rest series commissioning concluded december locomotive started regular service january started operation new cars long ton short ton axle load march took delivered rest series march decided purchase additional cars instead purchased heavier cars ore trains soviet wanted try known heavier trains usa south_africa tested new weights pair locomotives rest batch equipped handle existing cars later locomotives sold august ordered twin units delivery costing million replace remaining locomotives convert ore trains cars increase capacity million tonnes year time reduce number departures day mixture term iron ore fictional character spelled swedish specifications class cold adapted heavy haul electric locomotive platform launched basis latest models time later conducted final assembly locomotives germany introduced brand updated locomotive platform type designation applicable class excluded family time second batch order manufacturer referred locomotive type consists twin units driver cab normally operate fixed units making pair capable hauling long ton short ton ore train technically section capable operate single locomotive option seldom operation units fed power transformed converted single water cooled gate turn based belong family developed swiss branch successor oil cooled found previous use class operate independently cooling control systems shut automatically case failure consist seven line unit minimize maintenance costs locomotive phase alternating current traction motors rated single axle gives wheel arrangement effort locomotive lbf maximum dynamic braking effort lbf boost function allowing temporary traction effort lbf units capable mph single runs mph trains mph loaded trains locomotives long tall wide distance centers wheel base wheel diameter new worn locomotive weighs tonnes long tons short tons tonnes long tons short tons electrical equipment locomotive tonnes long tons short tons dead weight increase locomotive weight maximum axle weight weight increase achieved making walls centimetres wide armored steel extra wall thickness provides increased structural strength withstand collisions sides walls built flat possible reduce sticking blowing snow ice formation auxiliary system powered separate winding feeding independent gate providing phase system locomotive designed open system architecture adapted later information available driver sent control center locomotive large bright cab space people second series locomotives improved driver chair older trains machine room center hallway high current equipment located door opened special key key locked way accessed grounding locomotive similarly locomotive key place operation operates iron ore mines sweden output transported rail ice free port route named minority ore transported located baltic_sea ore shipped baltic customers delivered operated long including branch route operations handled subsidiary sweden norway pairs batch locomotives operate trains daily direction remaining pairs batch operate trains pairs second batch locomotives replace locomotives trains hauled cars long weigh tonnes long tons short tons national border port trains use fifth power energy sufficient power trains national border trains cars owned line owned passenger container trains
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