Yes, its not gonna raise cz if it has to, it would hav gt done b4 electrification, as FOB crosses complete Junction, nt just PF!!
The series whch pass-thru direct below bridge is the one kept AC flow live, while Bridge attachment is to offer wire alignment @ mid for the side wires to take over later on!!
I guess, the Jn will b kept @ PSR & pass-thru train will surely lower the panto while enter station premise n will raise whn cross premise (starter)..while stoppage train will lower the same while...
more... entering station premise, as mostly Loco applies brake to adjust speed to retain stoppage @ proper point in even gradient & non-heavy junction points!! Stopping freight may would work like lower back panto n raise front, with quite less speed or stop even!!