Results 151 to 160 of about 1,759 (186)

Influencing factors on the ampacity of EVs cables

2021 International Conference on Electrical Materials and Power Equipment (ICEMPE), 2021
To meet the demand for improved performance of EVs, the ampacity of high-voltage cables for EVs has received more and more attention. Due to the small space and the high ambient temperature around EVs cables, as well as the low thermal conductivity of the insulating materials of traditional high-voltage vehicle cables, it is difficult for the EVs ...
Yifang Wang, Jin Li, Xiaoxiao Kong, Boxue Du, Jing Xu, Chuanbin Wang   +5 more
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Ampacity Application Considerations for Underground Cables

IEEE Transactions on Industry Applications, 2015
Underground power cables are routinely used in many types of electrical power systems. In many cases, unique considerations and analysis are required in determining the ampacity of underground cable applications. This paper examines these considerations in low- and medium-voltage electrical systems and provides examples of actual system applications.
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Ampacities of power cables wound on reels

IEEE Transactions on Power Delivery, 1994
This paper presents a mathematical model that is capable of calculating the ampacity of a wide variety of power cable designs consisting of an arbitrary number of layers on a cable reel. The model considers round cables with copper conductors. The validity and accuracy of the ampacity model were verified by comparing the predicted temperature ...
W.Z. Black, G.W. Woodruff, P.G. Kovalchik, F.T. Duda   +3 more
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Cable Ampacity in Tray With Raised Covers

IEEE Power Engineering Review, 1986
Power cable tray systems in generating stations are installed with tray covers that may be raised over the tray side rail. Raising the tray cover allows installation of the cover without cutting and fitting the cover around conduits that terminate at the tray.
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Ampacity of aerial bundled cables

Proceedings of Canadian Conference on Electrical and Computer Engineering CCECE-94, 1994
Problems associated with the proximity of buildings and trees and the clashing of bare conductors have stimulated the world-wide trend towards the use of insulated conductors (cables) for the overhead distribution of electric power. An IEC Guide, Publication 287-2, proposes a method for determining the current-carrying capacity of a single core or ...
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Ampacity Calculations for Cables in Shallow Troughs

IEEE Transactions on Power Delivery, 2010
This paper presents the findings of an investigation concerning a calculation method for current-carrying capability (ampacity) of cables located in a shallow trough. The investigations proceeded in two parallel directions. On the one hand, an extensive search of published and unpublished records dealing with the subject was performed.
George J. Anders, Mark Coates, Mohamed Chaaban   +2 more
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Major factors affecting cable ampacity

2006 IEEE Power Engineering Society General Meeting, 2006
This paper presents a parametric study of the major factors affecting cable ampacity calculations. The current carrying capacity (or ampacity) of a cable depends on many of the installation properties and conditions. In this paper the effects on ampacity of conductor size, ambient temperature, bonding arrangement, duct size, soil thermal resistivity ...
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Ampacity reduction factors for cables crossing thermally unfavorable regions

IEEE Transactions on Power Delivery, 2001
When power cables cross regions with unfavorable thermal conditions, temperatures higher than the design value can occur. If the region is wide enough, the rating of the cable will usually be based on the assumption that the entire route is characterized by the same conditions.
H. Brakelmann, G. Anders
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AMPACITY OF CABLES

2003
Ampacity is the term that was conceived by William Del Mar in the early 1950s when he became weary of saying ‘‘current wrying capacity” too many times. AEE/IPCEA published the term “ampacity” in 1962 in the “Black Books” of Power Cable Ampacities [13-11.
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Probabilistic Determination of Power Cable Ampacity

Electric Machines & Power Systems, 1992
This paper reports that a probabilistic evaluation of the ampacity of naturally cooled and forced-cooled 300 KV underground cables has been carried out from the deterministic sensitivity studies of cable ampacities. The results show that probabilistic studies of cable ampacities should be carried out because deterministic studies give conservative ...
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