What electrical ignition, the main reason is detonated

    Fires and explosions often result in significant personal injury and equipment accidents. Electrical fires and explosions account for a large proportion of the fire and explosion accident, and increasing every year. Electrical wiring, motors, oil-immersed power transformers, switchgear, lighting, electric equipment and other electrical equipment, due to its structure, run their own risk and causes its holding point, fires and explosions are also different. But, in general, except for reasons of equipment defects, improper installation, and other aspects of design and construction, in operation, the current heat and electric arc or spark is the cause of the most common causes of fires and explosions.

    Electrical equipment is always running into heat. Proper design, proper construction, the correct operation of the electrical equipment, stable operation, heating and cooling are balanced, the maximum temperature and maximum temperature will not exceed a certain allowable range. But when the normal operation of electrical equipment destroyed, the heat increases, the temperature rises, it may cause a fire under certain conditions. Short circuit, overload, bad, core heat, poor heat dissipation and leakage and so may cause excessive heating of electrical equipment, hazardous temperature.

    EDM is a disruptive discharge between the electrodes, the arc is pooled into a large number of spark. General spark high temperatures, especially arc temperature up to 3000 ~ 6000 ℃, therefore, not only spark and arc can cause fuel combustion, but also make the metal is molten, splash, pose a risk of fire. The risk of explosion sites, spark and arc is a very dangerous factor. EDM work can be divided into sparks and sparks accident. Sparks refers to the process of work spark when electrical equipment or the normal operation generated in normal operation. Accidents occur when the spark is a spark line or equipment failure, and the spark by external causes, thundering spark, static electricity spark, EDM, and other high-frequency induction.