I: Safety Precautions for Storage, Placement, and Use of Sulfur Hexafluoride Gas

  1. New sulfur hexafluoride gas may contain a certain amount of toxic decomposition products. Safety protection measures must be taken when using new sulfur hexafluoride gas. The sulfur hexafluoride gas provided by the manufacturer should include the manufacturer's name, net weight of the gas, filling date, batch number, and quality inspection certificate. Otherwise, it is not allowed to be used.

  2. The storage area for sulfur hexafluoride gas cylinders must be well-ventilated, away from heat sources and oil contamination, protected from moisture and direct sunlight, and must not have water or oil stains on the valves. Regularly check the sealing of the cylinders and tighten the valves and caps.

  3. The safety caps and shockproof rings of sulfur hexafluoride gas cylinders should be complete, and the safety caps should be tightly screwed. Cylinders should be stored upright on racks with labels facing outward. Handle them gently during transportation, and throwing or sliding is strictly prohibited.

  4. Untested new sulfur hexafluoride gas cylinders and tested qualified gas cylinders should be stored separately and not mixed.

  5. Sulfur hexafluoride gas stored in new cylinders for more than six months should be re-sampled and tested before use, and only used if it meets the standards.

  6. When extracting sulfur hexafluoride gas from cylinders, a pressure reducing valve must be used to lower the pressure, and the operation should be conducted in a well-ventilated environment. After use, the cylinder valves should be tightly closed, and the caps should be put on to prevent residual gas leakage.

  7. Personnel involved in the operation, maintenance, and gas testing of equipment in contact with sulfur hexafluoride gas must receive safety protection education and relevant training before starting work.

  II: Management and Use of Safety Protective Equipment for Sulfur Hexafluoride Gas

  1. Operators of sulfur hexafluoride gas should be equipped with safety protective equipment, including specialized protective clothing, gas masks, oxygen respirators, gloves, protective goggles, and protective ointment. The safety protective equipment must comply with national regulations.

  2. Safety protective equipment should be stored in a clean, dry, and cool dedicated cabinet, managed by a designated person, and regularly inspected to ensure it is always ready for use.

  3. Personnel using oxygen respirators and gas masks must first undergo a physical examination, especially checking heart and lung functions. Those with abnormal functions are not allowed to use the above equipment.

  4. When personnel wear oxygen respirators and gas masks for work, a dedicated supervisor should be present on-site to monitor and prevent accidents.

  III: Organizational Management and Labor Health Care for Sulfur Hexafluoride Gas

  1. Establish a dedicated position for sulfur hexafluoride safety protection, and each department responsible for equipment operation, maintenance, and testing should have a designated person in charge of safety protection.

  2. Various safety monitoring instruments should be regularly calibrated and maintained to ensure they are always in good condition.

  3. Personnel engaged in the maintenance, operation, testing, and supervision of sulfur hexafluoride gas should undergo physical examinations 1-2 times a year, with special requirements for examination items (such as blood tests, respiratory system, skin, etc.), and health records should be established.