Analysis of the conductivity property of live working shielding clothing

Live working shielding clothing must be worn when working under the high-pressure environment. High voltage and electromagnetic waves are shielded by conducting principle, so as to reduce the harm to human body. At present, the relationship between the point to point resistance and the structure of clothing is not clear in the production and research of shielding clothing, its design, production, and test lack of theoretical guidance. In this paper, the electrical conductivity of the clothing is studied by measuring the point to point resistance of shielding clothing. The suitable method of measuring point to point resistance is designed, and test platform is build by U610E's digital multimeter and homemade special electrode and other equipment. The representative points are selected from the main latitude lines of clothing and the parts of contacting electrified equipment when wearing clothes, then measure the resistance value between different points. Through the analysis of the experimental results it can be found that, on the basis of good connection, the farther the distance between two points, the smaller the resistance value and the better the connectivity; the resistance value of the points that frequently contact with electrified equipment is significantly smaller than others; about the same distance of two points, if there is structure line in the middle, the resistance value is large; the structural complexity is proportional to the resistance value. It is concluded that the point to point resistance of shielding garment is related to the parts of contacting with electrified equipment during operation, the complexity of structure, and other relevant factors. In the design and production, we should focus on reducing the resistance value between the most distal of clothing, the parts of contacting electrification equipment and limbs, in order to increase its connectivity; the structural design of clothing should be simplified.