Jun 26, 2023 · Overhead Equipment (OHE) refers to the infrastructure and equipment used in railway systems for the electrification and power supply of trains. OHE is typically installed above the tracks and provides the necessary electrical power to propel and operate electric trains.

Portal structures are used to accommodate OHE of many lines (2 to 8 tracks) where it is not possible to erect independent mast due to restriction of track center. There are three types of portal namely N, O and R type.

Two/Three Track Cantilever (TTC) 5. Portal (N, O, R, P, G and BFB 6X12) OHE conductors are suspended from swiveling cantilever assembly generally erected on individual mast. The masts for standard applications viz. masts for single OHE, anti-creep and overlaps should be selected from the mast employment schedules.

Jan 10, 2023 · Working principal of TTC. Way its called TTC. Where it's used in OHE. Specifications of TTB and TTU and its measurements.

Weight Schedule Ohe - Free download as Excel Spreadsheet (.xls), PDF File (.pdf), Text File (.txt) or read online for free. This document contains a list of components for electrical transmission line structures along with their specifications.

OHE structures are mainly Mast, TTC and Portals. These structures are subjected to heavy overturning moment and considerably low direct load. The top of foundation should be 50-100 mm above the surrounding ground level. The length of mast below rail level should be minimum 1850 mm for regulated OHE and 1750 mm for un-regulated OHE.

DETAILS OF SMALL PARTS STEEL WORK FOR SUPPORTING 25KV ISOLATOR ON NEW TTC BOOM ETI/OHE/G/05513 DATED 06.09.1968 CONNECTION FROM ISOLATOR TO OHE ETI/OHE/G/05516 DATED 30.07.1992

Feb 19, 2022 · The document discusses the planning and layout of overhead line equipment (OHE) for electrified railway tracks. It describes various types of OHE, contact wires, catenary wires, droppers, jumpers, masts, portals, foundations, insulators, and neutral sections.

This document provides input parameters for calculating load on a traction traction catenary (TTC) location. It includes: 1. Details of the overhead line equipment like wire sizes and weights, tensions, dimensions of structures. 2.

The document provides details on various aspects of overhead line equipment (OHE) installation including foundation and grouting, structure, track centers, cantilevers and more.