1. isolation mode: isolation mode means that the equipment or facilities that need to be operated during live working are completely isolated from the power supply to ensure the safety of the working area. This method usually includes measures such as disconnecting power supply, removing cables or using insulation isolation devices. Isolation mode can effectively prevent electric shock, fire and other accidents, and it is a commonly used live working mode.
2. Shielding mode: Shielding mode refers to the use of shielding equipment or shielding structure to avoid the harm of current to the operator during live working. For example, when working on high-voltage lines, you can use personal protective equipment such as insulating gloves and shoes, and set shielding items such as insulating mats and insulating hanging cloth in the workplace to reduce the risk of current passing through the human body.
3. Grounding mode: Grounding mode refers to introducing the charge of charged equipment or materials into the earth through grounding wire to reduce the accumulation of voltage and current. Through grounding, current can flow into the ground along the conductor, thus reducing the probability of contacting with live parts and reducing the risk of electric shock. When working live, it is necessary to ensure that the grounding conductor is well connected and the grounding system meets the relevant safety standards.
When carrying out live working, professional knowledge and trained staff should be responsible for the operation, and at the same time, safety operation procedures and relevant laws and regulations should be strictly observed. In addition, necessary risk assessment should be carried out before live working to ensure the safety of the working environment, and necessary protective measures should be taken, such as wearing personal protective equipment and setting warning signs.
In a word, live working mainly adopts isolation mode, shielding mode and grounding mode to ensure working safety. The purpose of these measures is to reduce the risk of electric shock and fire and protect the safety of operators. When working live, you must abide by the relevant regulations and be operated by professionals to ensure the safety and reliability of the operation.
Pay attention to live working.
1. Understand the relevant regulations: Before carrying out live working, you must be familiar with and abide by the relevant laws and regulations in your area and the company's safety operation procedures. Make sure that you clearly understand the requirements and limitations of live working.
2. Use personal protective equipment: When conducting live work, you must wear personal protective equipment correctly, including insulating gloves, insulating boots, insulating clothes and protective glasses. These protective equipment can protect your safety and reduce the risk of electric shock.
3. Check tools and equipment: Before using any tools or equipment, be sure to check them. Ensure that the insulation of tools and equipment is in good condition, without damage and leakage. If problems are found, stop the machine immediately for repair or replacement.
4. Never work alone: it is absolutely forbidden to work alone with electricity. At least two people should work together, one is responsible for the operation and the other is responsible for monitoring and providing assistance. This can increase safety and get help in time when an accident happens.