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PKP class EP05
The EP05 is a Polish modification of Czech electric locomotive EU05 used by Polish railway operator (''PKP'')
==History==
The locomotive was produced in the years 1957–1960 in three types: ''20E1'', the prototype, ''30E1'' and ''30E2''. In need of modern electric locomotives for passenger trains, and unable to get timely delivery of EU06 locomotives from England, Poland bought 30 locomotives from its southern neighbours.
In 1969, PKP started testing several changes to enable EU05 locomotives to achieve speeds up to . First trials were made with the EU05-29 locomotive, and soon it became clear that it was possible to safely achieve speeds up to after changing the transmission rate. The decision was made to rebuild all locomotives of EU05 class during first servicing. As a result, by 1977 almost all locomotives had been rebuilt to EP05 class, except for locomotives 09, 12 and 19, which had been scrapped earlier. To distinguish the new series from its predecessor, the color scheme was changed from two-tone green to orange. All modifications were conducted in ''Zakłady Naprawcze Taboru Kolejowego'' in Gdańsk.
In the beginning of the 1980s, EP05 was being prepared for pulling express trains. Most of the engines had had multiple steering and pneumatic devices installed, which allowed them to pull trains with two connected locomotives and operate automatic fixtures. First express train, ''Górnik'' (En.: miner) led by EP05 locomotive run in 1984 on ''Centralna Magistrala Kolejowa'', achieving a top speed of . In the second half of the 1980s the top speed on ''Centralna Magistrala Kolejowa'' rose to and as a result EP05 could run at top speed. Some of those engines later had their clutch changed from Secheron to Skoda.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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