This blog is relating to the "Overhead Equipment Cantilever" of Indian Railway.
Definition of Cantilever: Cantilever hold the assembly of contact wire , catenary and dropper assembly. It transfers all vertical load, lateral forces and bending moment load through insulator to Mast. It is an insulated swiveling type structural member and keeps the overhead catenary system in a position assisting smooth current collection by the pantograph at the designed speed.
For more details please refer: click here
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refer the following Link for 25 kV OHE DIAGRAMS OF GENERAL ARRANGEMENT AND FITTINGS with Drawings(As issued by RDSO of Indian Railways)
click here
Attached Images:
Name of the parts of a Cantilever-Assembly
Image Link: Already provided above.(The 1st Link)
Diagram of CANTILEVER ASSEMBLY(NORMAL) AND ARRAGEMENT OF OHE ON PORTAL AT 4 TRACK SECTION
Image Link: Already provided above. (The 2nd Link)
Please note that all 4 tracks route of Indian Railways have the OHE arrangement as described in the 2nd attached picture of this blog.