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Background Information on High Voltage Fields

By Janes, David E.

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Book Id: WPLBN0000091369
Format Type: PDF eBook
File Size: 0.3 MB
Reproduction Date: 2005

Title: Background Information on High Voltage Fields  
Author: Janes, David E.
Language: English
Subject: Government publications, United Nations., United Nations. Office for Disarmament Affairs
Collections: Government Library Collection, Disarmament Documents
Publication Date:
Publisher: United Nations- Office for Disarmament Affairs (Unoda)


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Janes, D. E. (n.d.). Background Information on High Voltage Fields. Retrieved from

Government Reference Publication

Introduction: The high-voltage fields that are of current environmental interest are the fields associated with the transmission of electricity. Since electricity is often generated at sites that are remote from the points of consumption, some means of electrical transmission is required. Most of this transmission is accomplished with overhead transmission lines. The increase in the demand for power and the economies that can be realized when electricity is tansmitted at high volrage have led to higher and higher transmission voltages. Extra-high-voltage (EHV) is the term applied to transmission of electricity at or above 345 kV. The highest transmission volrage in use in North America was 10 kV in 1892. Transmission at 345 kV began in the mid-1950s, followed by 500 and 765 kV in the late 1960s. In 1971, 22% of the U. S. transmission capability was at 500 kV, and it is estimated that by 1980 15% of the transmission capability will be on 765 kV lines (I) . Voltages as high as 2000 kV have been considered, with 1500 kV as the highest level at which extensive research has been done (I).


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