Japanese electric multiple unit train type
The is a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway in Japan since 1990.
Overview.
Seventeen eight-car sets were built to replace the older 60 series sets on the Sakaisuji Line. 
The first 12 sets (96 cars) were built in 1990 while an expansion of 40 cars (5 sets) were introduced between 2002 and 2004.
Formations.
The Sakaisuji Line fleet consists of 17 eight-car trainsets formed as follows, with car 1 at the Tenchagaya end.
Interior.
Passenger accommodation consists of longitudinal seating throughout. 
History.
The trains started to undergo refurbishment in 2012. Set 66605 was the first train to be refurbished. It returned to service in February 2013. Works included a new paint scheme, various installations of LED displays and lights, and the installation of a front skirt.
References.
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