When Romania set about electrifying its railways in the 1960s (a process which has still yet to be completed), it chose Predeal to be the site of the first electric pylon on the CFR network. The pylon – found on platform one of Predeal station – today carries a commemorative plaque:
We do not know for certain, but we would take an educated guess that because Predeal is the highest town in Romania, and the station almost certainly the highest on a mainline, the country’s communist authorities were making the point that if they can bring electric railways to Predeal they can bring them anywhere. (Which makes us think that if the communists had built motorways, they would have started with the most difficult bits, such as Comarnic-Brasov: the exact opposite of today’s muppets).
Of course, it could just be that Predeal is close to a hydro-electrical power station or such like. We await further edification on the subject if anyone is remotely interested and knows better than we can guess.
PS The Predeal-Bucharest journey now takes just two hours. On Friday evening we had a vaguely Top Gear-style race: Mr & Mrs Bucharest Life in the car, the kids on the train. The car won, but only just, and only because the train was delayed after a passenger jumped off (while it was moving) at Comarnic. Apparently, he was expecting it to stop at Comarnic and when it didn’t he decided to get off there anyway.