IEC, CIGRE to Develop Standards for UHV Tech
August 8, 2007 // Published as a news service by IHS
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The International Electrotechnical Commission (IEC) and the International Council on Large Electric Systems (CIGRE) are teaming to develop international standards for ultra high voltage (UHV) to ensure the safe and efficient use of this technology in areas such as reliability and maintenance.
They will also define the tests for measuring electromagnetic radiation from power lines.
UHV could offer a solution to the need for more electricity in a space-restricted world, according to the IEC. Countries using this technology include Brazil, Canada, China, Japan, Russia and the U.S.
One of today's challenges is to supply growing demand for large amounts of electrical energy efficiently and with a minimal impact on the environment, said the IEC.
Electricity can be generated thousands of kilometers away from the urban populations to whom it needs to be delivered but loses energy during transmission.
UHV generally means alternating current (AC) voltages of 1000 kilovolts or higher or direct current (DC) voltages of 800 kilovolts or higher.
It is a highly efficient means of transmitting large quantities of power over a transmission line, said the IEC. This is because higher voltage on the line means lower current and therefore less energy being lost from the Joule effect.
Source: International Electrotechnical Commission (IEC).