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Author Kim, S.D. ♦ Morcos, M.M.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1981
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics
Subject Keyword Conductors ♦ Fires ♦ Solenoids ♦ Coils ♦ Impedance ♦ Testing ♦ Mechanical sensors ♦ Aluminum ♦ Steel ♦ Power transmission lines
Abstract This paper describes several properties and nondestructive techniques for evaluating the extent of deterioration of aluminum stranded conductors steel reinforced (ACSR) conductors due to forest fires in overhead transmission lines. A solenoid coil changes its impedance with changes in the electromagnetic properties and structure of test conductors. Therefore, it is possible to design a nondestructive test (NDT) instrument to evaluate the deterioration. Tension load, extension rate and sensor impedance are tested for some ACSR conductors degraded by an artificial fire. As the duration of the fire is increased, the mechanical strength of the conductors would be reduced, but the extension rate is increased. Furthermore, the sensor output shows the change in mechanical properties. As a result, the solenoid coil provides information to evaluate serious deterioration due to forest fires in ACSR conductors.
Description Author affiliation :: Hanbat Nat. Univ., Taijon, South Korea
ISSN 02721724
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2001-10-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 21
Issue Number 10
Size (in Bytes) 496.64 kB
Page Count 2
Starting Page 26
Ending Page 27

Source: IEEE Xplore Digital Library