2016-12-15

The source of surface contamination is likely to be impurities during equipment assembly and metal particles generated during switch operation, which will reduce flashover voltage and increase dispersion. In addition, arc discharge and corona discharge during operation will cause SF6 gas decomposition to produce low fluoride SF4, SOF2, SO2F2, etc. Under the action of water and oxygen, corrosive HF and SO2 will be generated, making the insulation material corroded and deteriorated, and the insula

2016-12-14

SF6 electrical equipment under normal operation, SF6 impurities can generally be treated on site to remove. The treated SF6 gas must meet the reuse standard, and the SF6 gas is recharged to the electrical equipment for reuse.

2016-12-13

1) Density is a measure of the specific gravity of SF6 gas in a closed container, which is independent of pressure and temperature changes. That is, the gas in the container does not leak or add gas into it, and its density state is constant. The internal pressure will change with the change of the ambient temperature.

2016-12-12

SF6 positive pressure air respirator belongs to the barrier type respiratory protection supplies, is a kind of self-contained open air respirator, mainly used in fire fighting, chemical industry, ships, petroleum, smelting, factories and mines, etc., so that firefighters or rescue personnel can safely carry out fire fighting, rescue and relief work in the harsh environment full of smoke, gas, steam or hypoxia. Especially in the power SF6 switch station, when the explosion-proof film breaks or ot

2016-12-11

When a beam of infrared light with a continuous wavelength is irradiated on a substance, if the vibration frequency of a group in the substance molecule is the same as the frequency of light, the two will resonate, that is, the group absorbs the infrared light at this frequency; On the other hand, matter does not absorb light energy. The light through the material through the monochromator dispersion, its frequency is expressed by wave number or wavelength, its transmission degree is expressed b

2016-12-11

The main factors affecting the decomposition process of SF6 gas under high temperature and arc are arc energy, electrode material, humidity, oxygen impurity content and equipment insulation material.