Sulfur hexafluoride itself is a non-toxic and harmless gas,but under the action of high temperature and high pressure arc,often decomposes and dissociates a variety of products,some of these decomposes are toxic substances that will cause harm to human body.At the same time,if a large amount of sulfur hexafluoride gas is inhaled,it will also cause asphyxia and other adverse reactions.But high-purity sulfur hexafluoride is the"oxygen"that cannot be obtained by the power industry.What should we do in case of gas poisoning?How can it be prevented?How do we know if it's gas poisoning?

　　Why does sulfur hexafluoride gas poisoning occur?Due to technical problems and other reasons,the purity of some SF6 gas products is not up to standard,and there will be some harmful impurities when leaving the factory.There is also a situation that when dealing with gas equipment,personnel operation is improper,resulting in SF6 power equipment leakage,toxic and harmful substances leakage,resulting in gas poisoning.Of course,there are also some enterprises in the regular inspection of leakage when cutting corners,leading to equipment failure,resulting in gas poisoning.

　　Sulfur hexafluoride of poisonous gas and dust,the status of the equipment to the human body has certain harm,respiratory system and mucous membrane after general sulfur hexafluoride gas poisoning will appear different degrees of tears,sneezing,runny nose,nasal throat have hot feeling,sound hoarse,cough,dizziness,nausea,chest tightness,neck discomfort and other symptoms.When the poisoning occurs,the poisoned person should be quickly moved to the fresh air and treated in time.

　　Once sulfur hexafluoride gas ENCOUNTERS high HEAT,HIGH TEMPERATURE(e.g.,ELECTRIC ARC),it PRODUCES BY-PRODUCTS,SULFUR OXIDE and hydrogen FLUORIDE gas,which coexist with the undecomposed gas.There are three kinds of poison gas present.Sulfur OXIDE is a kind of SULPHuric ANHYDRIde,which is easily absorbed by the moist mucosal surface of the human body to produce sulfuric acid and sulfite,and has a strong stimulating effect on the mucosa of the eye and respiratory tract.Specific manifestations are tears,cough,burning throat,eye conjunctival and respiratory tract tingling symptoms.

　　If high purity sulfur hexafluoride meets human sweat,it will make people's skin red and swollen.Hydrogen fluoride,soluble in water.Hydrofluoric acid is also easily absorbed by the moist mucosal surface of the body to form hydrofluoric acid,it is as harmful to the human body as sulfur oxide-eyes and respiratory tract,but more harmful.Hydrofluoric acid is often used to etch glass,so it is extremely corrosive.If encounter PERSON's sweat,FORM hydrofluoric acid ON PERSON's skin surface,IT CAN penetrate skin surface TO deep penetration,form ulcer and necrosis,and unfavorable cure.If skeletal damage causes skeletal fluorosis,there is no recovery.Hydrogen fluoride is more toxic than sulfur oxide and sulfur hexafluoride.