DocumentCode :
3446678
Title :
Overall design of supertension cables
Author :
Attwood, Jim
Author_Institution :
BICC Cables Ltd., Wrexham, UK
fYear :
1995
fDate :
20-21 Nov 1995
Firstpage :
42552
Lastpage :
42556
Abstract :
The author describes how, during the design of supertension (66 kV to 500 kV) polymeric power cables, it is necessary to not only consider the electrical performance of the dielectric but also the correct choice of overall cable design to perform a variety of functions. The polymeric insulation must be protected from the surrounding environment by a radial metallic moisture barrier and suitable protection from the forces generated by thermal expansion, installation conditions or accidental damage. In service the core protection will be subjected to: (1) capacitive charging currents; (2) circulating currents; (3) transient fault currents; and (4) transient voltages which all must be designed for and adequately dissipated. The cable design is completed with a polymeric oversheath which can be modified to be abrasion resistant, termite resistant or have enhanced fire performance to suit the particular installation conditions. All of these influences must be considered in the overall design of a supertension polymeric cable
Keywords :
XLPE insulation; cable sheathing; design engineering; ethylene-propylene rubber; moisture; polyethylene insulation; power cable insulation; protection; 66 to 500 kV; abrasion resistant; accidental damage; cable design; capacitive charging currents; circulating currents; dielectric; electrical performance; fire protection; installation; polymeric cable insulation; polymeric oversheath; protection; radial metallic moisture barrier; supertension power cables; termite resistant; thermal expansion; transient fault currents; transient voltages;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Supertension, IEE Two Day Colloquium on
Conference_Location :
London
Type :
conf
DOI :
10.1049/ic:19951332
Filename :
494724
Link To Document :
بازگشت