Here you will find an introduction to automated pantograph monitoring in Catalan.
You can read about protecting the overhead wires in Spanish.
An explanation about how to do predictive maintenance on locomotives in Portuguese.
Read about preventing teardown of the catenary in Italian.
Read how the French can keep trains running on time.
In Tokyo, Japan, the railway operators might want to protect their brand name.
Also in Russia, replacing the contact wire is expensive.
In Germany rail operators prefer not to pay compensations because of delays.
In Saudi Arabia, high speed trains can suffer from sand storms.
China is investing heavily in its railway infrastructure
Hong Kong uses metros with catenaries and pantographs.