Nexans wins a 20 million euro contract in Brazil to supply overhead conductors for the world’s longest power transmission link
Nexans overhead conductors will be used to construct the first transmission line for the Madeira River Power Interconnection project consisting of a 2,375 km HVDC link between the new Rondônia hydroelectric plant and the city of São Paulo, across five Brazilian states and 86 towns and cities.
Paris, May 26, 2011 – Nexans, a worldwide leading expert in the cable industry, has been awarded a 20 million euro contract by the IE Madeira consortium to deliver the overhead lines for the world’s longest power transmission link, Brazil’s Madeira River Power Interconnection.
This new HVDC (high voltage direct current) link, the first of two, will transmit 3,150MW of power produced by the Rondônia hydroelectric plant in northwest Brazil to São Paulo, Brazil’s main economic centre, over a distance of 2,375 km. HVDC transmission at 600kV is being used to minimize transmission losses over the long distance and the link will eventually comprise two parallel overhead lines. Nexans has been selected to provide the conductors for the first circuit by IE Madeira, a consortium comprising the utilities Furnas, Chesf and CTEEP.
Advanced aluminium conductors
The Madeira River Power Interconnection is a bipole circuit, with each pole comprising four overhead conductors. Overall, Nexans is supplying some 6,700 km – equivalent to 21,120 tonnes – of its special All-Aluminium Conductor (AAC) for the project. Each conductor features 91 bare wires, with a diameter of 44.4 mm.
AAC conductors are well established as part of the Nexans overhead line portfolio. However, a bespoke cross-section has been developed specifically for the Madeira River Interconnection project to provide the desired electrical and mechanical properties (breaking stress, elongation, linear thermal expansion coefficient for example) by taking into account the line's construction conditions, such as topography and climate. The typical span between the towers will be 500 metres.
To ensure the total safety and effectiveness of the Nexans solution, an extensive evaluation programme, including creep, stress and stretch tests, among many others, was conducted in close consultation with IE Madeira.
The cable is being manufactured at three Nexans plants in Brazil, located in Americana (São Paulo State), Lorena (São Paulo State) and Rio de Janeiro (Rio de Janeiro State). The first transmission line is scheduled for installation in the last quarter of 2011, while the entire project should come on line by 2013.
“Nexans is proud to be involved in this major project for the energy and utilities industry in Brazil, as the Madeira River Interconnection will help create 43,500 direct and indirect jobs, as well as supplying nearly nine percent of the country’s energy requirement”, said Jorge Tagle, Nexans Executive Vice President South America Area. “The AAC conductors we are supplying are a perfect example of Nexans’ proven global capability to develop high technology transmission solutions to suit specific project requirements and to support them with local manufacture and service.”
Editors note – world’s longest transmission links
The Madeira River Interconnection will set a new record as the world’s longest power transmission link, with a route length of 2,375 km across five states in Brazil and 86 towns and cities. The current record for an operational HVDC project is also in Brazil – the 900 km line from Itaipu Dam to Ibiuna in São Paulo State. The overall world record is for the 1,700 km AC (alternating current) line between Inga and Saba in Zaire.
以能源为发展核心，耐克森作为全球电缆业的领先者，提供全系列的电缆和电缆系统，并成为基础设施、工业、建筑业和局域网（LAN）四大市场的世界性重要角色。从能源、交通运输、电信网络到造船、石油和天然气、核能、汽车、电子、航天、物料搬运到自动化，耐克森的电缆无处不在。 作为负责的工业公司，耐克森将可持续发展视为其全球和运营战略中不可或缺的部分。产品、解决方案和服务的不断创新，员工的发展和敬业，以及引入减小环境影响的安全工业过程，这些重要举措树立了耐克森可持续未来发展的核心地位。 耐克森在全球40个国家设有工厂，业务遍及全球，共拥有23,700名员工。2010年销售额达60亿欧元。耐克森集团在巴黎股票市场上市，更多信息请查询www.nexans.com