The Catenary wire comprises 19 strands of cadmium copper, each strand of 2.10 mm dia, with overall dia of 10.5 mm having about 80% conductivity and 65 sq. mm cross-sectional area. The contact wire is a solid hard drawn grooved electrolytic. Copper of 12.24 mm dia and 107 sq. mm cross-sectional area. The total current carrying capacity of both wires is 600 Amps. The condemning size of contact wire is 8.25 mm.
Catenary wire (also called a messenger wire) has closely spaced drops which support the particular contact wire. The messenger (or catenary) wire must be both strong and have good conductivity. They used multi-strand wires (or cables) with 19 strands in each cable (or wire). Copper, aluminium, and/or steel were used for the strands. All the 19 strands may well be of a similar metal or some strands might be of steel for strength with the remaining strands of aluminium or copper for conductivity. Another type seemed like it had all copper wires but inside each wire was a steel core for strength. The steel strands were galvanized except for better corrosion protection they might be coated with an anti-corrosion substance.
The wires and cable industry in India has come a long way, growing from being a small industry to a very large one, over the past decade. With the segment comprising nearly 40 per cent of the electrical industry in India, the increasing demand for power, light and communication has kept demand for wires and cables high. Growing at a CAGR of 15 per cent, boosted by momentum in the power and infrastructure segments. The present estimated per capita consumption is only about 0.5 kg. As GoI is focusing on ´Make in India´, the industry can grow at similar rate for the next five years.
The India structured cabling market was valued at $419.4 million in 2017 and is forecasted to witness a CAGR of 12.9% during 2018–2023. Growing demand for copper cables, surging data center market, increasing number of product launch activities, and rising demand for better bandwidth are supporting the structured cabling market growth in India.
Growing domestic market, priority for infrastructure development, improved life-style and newer opportunities, have propelled the Indian copper industry, especially for wires and cables.
The growing trend in building, construction and automobile sectors is expected to stay demand of copper high. Understanding the copper technology involved in copper production, exploration, mining, and therefore the uses of copper, also because the global industry structure would impact copper mining, the environment, the varied markets of copper, etc. The industry is affected by the worth trends of copper, market performance, import/export scenario, the physical market trends, demand for copper, and in fact, a market forecast.
According to their Indian Electrical Equipment Industry Mission Plan 2012-2022, the government has planned to form India the country of choice for the production of electrical equipment and reach an output of $100 billion by balancing exports and imports. Requirement of electrical equipment is one among the foremost important inputs for the event of the facility sector. The user enjoys right for safe and quality products and should be quality conscious while selecting the make. As a whole any entrepreneur can venture during this project without risk and earn profit.
Few Indian major players are as under
Elite Conductors Ltd
Dharmadeep Powerdive Inds. Ltd
Copper Semis Pvt. Ltd.
Chandra Metals Pvt. Ltd.
G K Winding Wires Ltd
Grid India Power Cables Pvt. Ltd.
Hindustan Transmission Products Ltd
K E C International Ltd.
M E W Electricals Ltd.
