Polytechnic and design, Vol. 13 No. 3, 2025.
Professional paper
https://doi.org/10.19279/TVZ.PD.2025-13-3-12
MEASUREMENT OF THE ELECTRICAL PROPERTIES OF COPPER AND ITS ALLOYS USING THE U-I METHOD
Krešimir Osman
; Zagreb University of Applied Sciences – Department of Electrical Engineering,
*
Teo Todorović
orcid.org/0009-0008-1046-4171
; HEP p.l.c., Zagreb, Croatia
Saša Stojanović
; Zagreb University of Applied Sciences – Department of Electrical Engineering,
*
* Corresponding author.
Abstract
The article deals with the measurement and comparison of the electrical properties of copper materials and some of their alloys. The aim was to carry out laboratory tests to verify the properties of copper as a conductor in comparison with some other materials or alloys for the same application. The results of the measurements showed that pure copper has the best electrical conductivity among the other materials tested. It also showed that adding impurities to copper degrades the electrical properties that are important for its use as a conductor. To test the properties of the soldering materials copper, brass and tin, a custom-built test model with all the necessary measuring and testing equipment was used. The test model consists of a cardboard box that represents a heat chamber to minimise heat loss. The U-I method of resistance measurement is used because electrical resistances in the range of 40-50 mΩ are expected. These values are too small to use any other measuring instruments for the measurements.
Keywords
copper; brass; tin solder; wire; U-I method
Hrčak ID:
346573
URI
Publication date:
29.1.2026.
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