A composite core conductor for low sag at high temperatures

A new type of overhead conductor with a polymer composite core is evaluated in terms of the mechanical properties and operating characteristics. The conductor is composed of trapezoidal O'-tempered aluminum wires helically wound around a hybrid glass/carbon composite core produced by pultrusion...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2005-07, Vol.20 (3), p.2193-2199
Main Authors: Alawar, A., Bosze, E.J., Nutt, S.R.
Format: Article
Language:English
Subjects:
Aluminum
Aluminum conductor composite core (ACCC)
aluminum conductor steel reinforced (ACSR)
aluminum conductor steel supported (ACSS)
Applied sciences
Carbon
Conductors
Conductors (devices)
Core wire
Electric wire
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Glass
Materials
Mechanical factors
Operating temperature
overhead conductors
Overhead networks
Polymers
Power networks and lines
Power transmission
Sag
Steel
stress strain curve
Temperature
tensile strength
tensile test
unidirectional composites material
Wires
Wounds
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Summary:A new type of overhead conductor with a polymer composite core is evaluated in terms of the mechanical properties and operating characteristics. The conductor is composed of trapezoidal O'-tempered aluminum wires helically wound around a hybrid glass/carbon composite core produced by pultrusion. The conductor is intended for electrical power transmission, and is designated ACCC/TW, for aluminum conductor composite core/trapezoidal wire. Measurements of core properties and conductor sag at high temperatures were compared to conventional ACSR (aluminum conductor, steel-reinforced) of the same diameter. The tensile strength of the ACCC/TW was /spl sim/1.5 times greater than conventional ACSR of the same outer diameter. The CTE of the composite core was approximately 4 times lower than the steel core in ACSR. The ACCC/TW conductor exhibited a six-fold reduction in high-temperature sag compared with conventional ACSR (Drake) when operated at the same current. The ACCC/TW conductor also exhibited greater ampacity than ACSR conductor at all operating temperatures.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2005.848736