In long tunnel If we reduce the length of system height on catenary system, tunnel construction cost is cut down. It is because of tunnel section curtailment. So that we have review reduction of system height according to tunnel section. We have desig...
In long tunnel If we reduce the length of system height on catenary system, tunnel construction cost is cut down. It is because of tunnel section curtailment. So that we have review reduction of system height according to tunnel section. We have designed reduction of system height considered characteristics of overhead contact systems within UIC 799 code.