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Abstract
The ampacity of power cables depends, among others, on the conditions of heat dissipation from the cable to the environment. Cables are usually laid directly in the ground, but in some sections, they may be placed in ducts, which adversely affects the ampacity of the cable line. The paper presents heat transfer phenomena for cables installed in pipe-type ducts filled with air. The effect of cable duct diameter on this ampacity is discussed. The results of the theoretical analysis have been validated by calculations performed with CYMCAP software. The comparison of the ampacity for air-filled vs. water- or bentonite-filled ducts is also included. The analyses and comparisons have shown that with an appropriate dimension of the duct, the simplest filling (with air) allows to obtain the ampacity not lower than when water or bentonite is used.
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Authors (3)
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Michał Kołtun
- -
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.15199/48.2022.03.32
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Przegląd Elektrotechniczny
pages 141 - 144,
ISSN: 0033-2097 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Ratkowski F., Kołtun M., Czapp S.: The effect of cable duct diameter on the ampacity of high-voltage power cables// Przegląd Elektrotechniczny -Vol. 98,iss. 3 (2022), s.141-144
- DOI:
- Digital Object Identifier (open in new tab) 10.15199/48.2022.03.32
- Verified by:
- Gdańsk University of Technology
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