Microstructure and Electrical Contact Performance of Wires in Corrosion Air
- DOI
- 10.2991/meic-14.2014.195How to use a DOI?
- Keywords
- power grid; electrical contact; overheating; corrosion; air pollution
- Abstract
The high contact resistance of the corrosion products is more likely to cause contact failure. Based on service condition and natural environment of transmission and transformation equipment, the deterioration mechanism of electrical wires was investigated from the view of corrosion. The surface morphology of specimens after corrosion is observed by stereoscopic microscope and scanning electron microscope (SEM). Chemical constitution was examined by X-ray energy spectrum. The contact resistance was measured by four-point method. The experiment results show that the corrosion is mainly electrochemical corrosion. Humidity and air pollutants are the main factors of effecting the corrosion. The corrosion products formed on the surface layer of testing specimens is loose and uneven, and easy to fall off in the role of external force. The inner corrosion layer is dense and combined closely with the substrate. The EDS analysis results there is large quantity of O and S, and Cu oxide and sulfide are probably existed. The corrosion and pollution which come from the surrounding environment can increase the static contact resistance obviously, and the maximum value can reach to about 2000m .
- Copyright
- © 2014, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Jing Liang AU - Guogang Wang AU - Zhigang Kong AU - Xiaolu Zang PY - 2014/11 DA - 2014/11 TI - Microstructure and Electrical Contact Performance of Wires in Corrosion Air BT - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering PB - Atlantis Press SP - 873 EP - 876 SN - 2352-5401 UR - https://doi.org/10.2991/meic-14.2014.195 DO - 10.2991/meic-14.2014.195 ID - Liang2014/11 ER -