Electric shock
China has about 8,000 deaths from electric shock every year. Safe use of electricity should strengthen safety education and popularize common sense of safe use of electricity. Practice has shown that a large number of electric shock accidents are caused by people's lack of basic resident knowledge of electricity use, and some are ignorance of the characteristics of electricity and its dangers: some are negligent and ridiculous; others are ignorant. , unauthorized use of electricity, etc. Therefore, it is very important to strengthen the basic common sense of learning safe electricity using safety equipment.
The function of the insulated safety shoes (boots) is to insulate the human body from the ground, prevent current from passing through the body and the earth to form a path, causing electric shock damage to the human body and minimizing the risk of electric shock, because the electric current is the contact point when the electric shock occurs. Through the human body flowing into the ground, it also prevents the step voltage in the test voltage range from harming the human body, so it is necessary to wear not only insulated gloves but also insulated shoes for electrical work.
The applicable scope of electric insulation safety shoes, the new standard clearly points out: electric insulation shoes and cloth surface insulation shoes with the test voltage less than 15KV, applied in the working environment of power frequency (50-60F) below 1000V, test above 15KV Electric insulation rubber shoes for electric city, suitable for working environment above 1000V.
The new standard stipulates that electrically insulated shoes are used as safety aids for electrical work. As a labor safety manager, this should be clearly understood. Often, some managers with insufficient electrical knowledge mistakenly believe that 6KV insulation shoes or 5KV cloth insulation shoes, the application range is 6KV or 5KV environment, which is very wrong. In electrical safety management, insulation tools are divided into basic safety tools and auxiliary safety equipment. The so-called basic safety equipment refers to safety equipment with sufficient insulation strength to withstand the electrical application voltage, such as insulating rods, insulating clamps, and insulation tables (ladders). Auxiliary safety equipment is not enough to withstand the electrical operating voltage. In electrical work, the basic safety equipment (such as insulating mats, insulated shoes) can not touch the live part. But it can prevent the impact of the step voltage on the human body. Insulating shoes and cloth insulation shoes are mainly used as auxiliary safety tools under the power frequency of 1000V.
Insulating safety shoes must adhere to preventive testing during use
The new standard GB12011-2000 for electric insulation shoes has made specific provisions from production, packaging, transportation, storage and use. It not only constrains the manufacturer to continuously improve the quality, but also puts forward new requirements for the product users: when using, avoid sharp stab wound soles, keep the upper of the shoe dry and avoid high temperature and corrosive substances. In particular, the labor safety supervision department should conduct the handover test for the purchase of new insulation shoes. After 6 months of wearing the product, a preventive test should be carried out. For the defective product pierced by the sharp device, it should not be used as an insulated shoe.
Preventive test, for 6KV leather insulated shoes, 5KV voltage detection should be used. 5KV cloth shoes use 3.5KV testing. Implementing the new standard of GB12011-2000 is the common responsibility of product manufacturers and users. Only by implementing the standards and grasping the requirements of the standards can the safety accidents caused by electric shocks be reduced. The new standard of GB12011-2000 electric insulation shoes is beneficial to manufacturers to improve product quality, is conducive to enterprise safety and production management, and improves the safety management level and safe operation level of enterprises to prevent electric shock accidents.
Electrically insulated shoes include: electric insulation shoes, cloth shoes, rubber shoes, plastic shoes. Each unit can reasonably set the period of use according to the labor intensity and working environment.