Open Railway Map electrification layer. Shows Tokyo Central station with lines using 1.5kV (pass-tbrough normal speed lines) and two terminating Shinkansen lines, one using 25kV 50Hz and the other 25kV 60Hz

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   rail 🦊 (rail_@bark.lgbt)'s status on Friday, 15-Nov-2024 19:16:49 JST rail 🦊

   Many of you might already know that due to historical reasons, Japan uses two incompatible power systems with mismatched frequencies

   That has its consequence in railways too

   Meet Tokyo Central station. As you can see, western and eastern Shinkansen lines terminate here. They're not connected with each other and use different electrification depending on which part of the country the line goes to – 25kV 50Hz or 60Hz

   Normal-speed lines use 1.5kV DC electrification

   This small infodump was brought to you by @aroma who brought my attention to that detail

   #railinfodump