Technical requirements and instructions for use of anti-static shoes
The human body is the most common source of static electricity hazards. The simplest way to eliminate human static electricity is to take measures to ground the human body. Wearing anti-static shoes and using anti-static floors (anti-static mats, carpets, etc.) and anti-static socks and anti-static insoles can guide static electricity from the human body to the ground, thereby eliminating human static electricity.
Technical requirements for anti-static shoes
1. Electrical performance
1.1 Anti-static shoes are tested according to Appendix A of this standard, and the resistance value range is 100kΩ~1000MΩ.
1.2 Conductive shoes are tested according to Appendix A of this standard, and the resistance value is not less than 100kΩ.
2. Physical and mechanical properties
2.1 Anti-static leather shoes and conductive leather shoes should comply with QB1002~1005 regulations.
2.2 Anti-static cloth-surface rubber-soled shoes and conductive cloth-surface rubber-soled shoes should comply with HG/T2495 regulations.
The characteristics are as follows: the sole includes the outermost layer of RB sole containing conductive carbon black, and the sole has layers of soles with conductive cloth and conductive wire sewn through it in sequence, and each layer of sole is covered with conductive glue.
Production method: First, make the RB sole with conductive carbon black, and combine it with the upper to make shoes, and then make conductive layers of soles on the layers of soles placed in the shoes with conductive cloth and conductive wire, and put them into the shoes in sequence to make the finished product.
Advantages: novel and practical structure, reliable conductive connection structure, effective anti-static, avoid various accidents caused by static electricity, protect the safety of life and property and people's health.
What should be paid attention to in the use of anti-static shoes
Anti-static shoes should be worn with anti-static socks/shoe pads, and work on anti-static ground to conduct the static electricity carried by the human body to the ground. Any part of the resistance is too large or disconnected, which will cause the human body to carry harmful static electricity. Therefore, in important departments, there should be a human body resistance tester to detect whether the shoes/socks/insoles worn by the human body and the total resistance with the human body can meet the requirements of static electricity leakage.
Human body safety issues in the use of anti-static shoes
From the perspective of anti-static, the smaller the total resistance of the human body to the ground, the better, but the minimum value is limited by safety. The human body must have a certain value of resistance to the ground so that in the event of a short circuit between a metal device or device and the power supply, the resistance can limit the current flowing through the operating human body. The minimum value should not be less than 105Ω. Usually, the current limiting resistance of a wristband is 1MΩ. The minimum resistance of anti-static shoes should not be less than 105Ω, and the maximum should not exceed 109Ω.