2019-02-17

From a medical point of view, the degree of impact of various decomposition gases and products on the human body not only depends on the size of its toxicity, but also the size of the amount inhaled into the human body and the physical quality of each person. As an objective basis for judgment, Japan sets the allowable concentration of each animal substance to level 5. I.e. A - minimum lethal concentration; B - semi-lethal concentration (50% is the death concentration); C -- Short time residence

2019-02-17

SF6 gas has a century-old history, it is two French chemists Moissan and Lebeau synthetic artificial inert gas in 1900, around 1940, the United States military used it for the Manhattan Project (nuclear military).

2018-12-17

Sulfur hexafluoride circuit breaker temperature is too low will make the switch can not work normally what are the reasons? 1, sulfur hexafluoride can only remain gaseous when the temperature is above 45 ° C, and it has the possibility of liquefaction under normal conditions of use, so sulfur hexafluoride can not be used at too low temperature and too low pressure. The actual pressure of circuit breaker decreases after sulfur hexafluoride liquefaction, and the switch cannot work normally due

2018-11-21

When working in the same SF6 circuit breaker selection in high-cold areas, the local ambient temperature should be fully considered to ensure that the selected SF6 circuit breaker conditions can meet the local ambient temperature. The following measures can be taken:

2018-11-20

In fact, in the process of SF6 gas production will be affected by the material of the production equipment, process conditions and other factors, in addition to the water generated in the synthesis process, in the gas filling process may also be mixed with a small amount of water. In order to prevent the possible harm of sulfur hexafluoride gas moisture, the state has strict regulations on the quality indicators of SF6 gas, requiring manufacturers to provide biological test non-toxic certificate

2018-11-19

Functional characteristics and technical indexes of SF6 micro-water density on-line monitoring system SF6 Density micro-water online monitoring system (Winfoss-S6) adopts high-performance micro-water sensor and density sensor with temperature compensation function. The collected data CAN be connected to substation integrated automation system and remote monitoring center through RS-485 or CAN bus. Long-term condition monitoring of SF6 circuit breaker to ensure the safe and stable operation of