As we all know, gas stations dealing with flammable and explosive products belong to high-risk industries, and "safety first" is the most basic requirement for gas stations. Common safety measures at gas stations mainly include turning off motorcycles to refuel, gas station employees must wear anti-static clothing to work, prohibiting open flames and using mobile phone calls in gas stations, and not refueling in plastic buckets, etc. Introduction Of Cell Phone Blocker The main purpose is to prevent people from using mobile phones when refueling. The most difficult part of management is to prohibit customers from using mobile phone calls in gas stations. First of all, people have misunderstandings about the safety hazards caused by using mobile phones in gas stations. Why can't I make phone calls at the gas station? Some people think that it is alarmist that a mobile phone can cause an explosion at a gas station, and they have never heard of an explosion caused by a mobile phone. In fact, there is a certain scientific basis for cell phone jammer to cause explosion accidents. As a radio communication tool, the radio wave (radio frequency electromagnetic radiation) emitted by the radio transmitter can induce radio frequency current in the antenna receiving the radio. When RF current circulates between metal conductors, RF sparks will be generated in case of corrosion or poor contact. As long as the RF spark lasts for more than one microsecond and the energy is greater than 6 milliwatts, it will ignite the methane-air mixture. Since gasoline is a volatile substance, in the combustible danger area formed by the leakage of oil and gas tanks and natural gas pipelines, the radio frequency sparks generated by cell phone jammer mobile phones can easily cause explosions and lead to disasters.
When the gas station fills the fuel tank of a car or motorcycle with gasoline through the fuel gun, the fuel vapor in the original empty fuel tank will drift outward, and the newly injected gasoline will also volatilize into the air, causing the fuel vapor density around the refueling vehicle to increase sharply. At the same time, in order to make the communication signal clearer, the frequency of mobile phone use is high and the transmission power is relatively strong. Although it meets the national standard, it still poses a serious threat to refueling and gas stations. Because refueling and gas stations are now generally controlled by computers, high-intensity mobile phone signals will cause induction with computer equipment, and the instantaneous electronic friction between the two may ignite fuel vapor and cause an explosion. The current required to ignite the fuel gas is very small, and the static current generated by the mobile phone in the working state can completely reach this limit. If you encounter cloudy or foggy weather with high air humidity and low air pressure when filling and unloading oil at the gas station, due to poor air circulation, the density of oil and vapor will increase accordingly, and the possibility of an explosion caused by receiving a mobile phone will further increase. Big. In addition, because the mobile phone itself does not have explosion-proof function, if the mobile phone has been used for a long time or the quality of the mobile phone itself is poor, the circuit of the internal chip of the mobile phone is prone to short-circuit, so that the mobile phone can generate a small amount of sparks at the moment of answering, thus also Can cause an explosion at a gas station. So gas stations often have no mobile phone signal, that's because their staff installed Introduction Of Cell Phone Blockerdevices.
