Contents I. Introduction
Long-term operation under unfavorable working conditions may occur during the manufacturing, installation, and daily process and control of 10kV switchgear cable joints. Factors such as condensation, dirt, foreign objects, and dust can contribute to issues such as poor contact, arc impact, and contact oxidation[1]. These issues can result in a notable rise in the resistance value of the components and the generation of a substantial amount of Joule heat. Prolonged operation in non-standard environments or conditions can result in a decline in the insulation capacity of the internal insulation components of the switchgear. This decline in insulation characteristics can lead to faults in the electrodes within the switchgear, ultimately causing arc faults. The current focus in the operation of switchgear is to detect similar situations in a timely manner and prevent the occurrence of arc faults[2].
