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Underground Power Cables

J. D. Endacott
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
Vol. 275, No. 1248, A Discussion on Recent Advances in Heavy Electrical Plant (Aug. 30, 1973), pp. 193-203
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/74311
Page Count: 11
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Underground Power Cables
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Abstract

Up to the present, effectively all underground power transmission needs have been satisfied by the use of conductors insulated with impregnated paper. In particular, in recent years, the oil-filled cable system using cellulose paper impregnated with oil under pressure has been further developed to meet all immediate and near future needs for higher voltage and higher current power transmission underground. With modern materials and technology, are there more economical solutions and can the needs of the longer future term be met? The basic electrical, thermal, mechanical and reliability constraints which are exerted upon the design of supertension underground power cable systems are considered. The limitations upon further development of the oil-filled cable system are identified. Also, indications are given of the potentials of new insulating materials and novel constructions of cable to provide more economical solutions and greater power transmission capabilities.

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