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You don’t know those things about explosion-proof walkie-talkies?

2021-03-18View Original

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An explosion-proof walkie-talkie is a walkie-talkie that can operate in an environment with explosive gases. Unlike ordinary walkie-talkies, explosion-proof walkie-talkies do not refer to devices that can withstand explosions on their own; rather, they are walkie-talkies capable of operating in environments with explosive gases. Basic knowledge of explosion-proof walkie-talkies: A general explosive environment refers to an environment where explosions may occur. Explosive gas environment: Under atmospheric conditions, a mixture of flammable gases, vapors, or mists with air, in which, once ignited, the combustion will spread throughout the entire unburned mixture. Operating temperature: The temperature reached by the explosion-proof walkie-talkie during normal operation. Maximum surface temperature: The highest temperature that the surface or any part of an explosion-proof walkie-talkie may reach when operating under the most adverse permitted conditions, and which could potentially ignite the surrounding explosive environment. Explosion-proof type: Specific measures taken to prevent explosion-proof two-way radio equipment from igniting the surrounding explosive gas environment. Intrinsically safe circuit: A circuit in which the occurrence of any electric spark or any thermal effect under normal operation and specified fault conditions cannot ignite the specified explosive gas environment. Flameproof enclosure: A type of explosion-proof design for two-way radios, whose enclosure is capable of withstanding internal explosions caused by flammable mixtures that penetrate inside through any joints or gaps in the enclosure without being damaged, and it also prevents an explosive environment formed by one or more gases or vapors outside from causing an ignition. The explosion protection type of an explosion-proof enclosure is usually flameproof, denoted by the letter b; the symbol Ex indicates that the electrical equipment meets the requirements of one or more explosion protection types. Recently, many chemical plants, coal mines, oil fields, and other workplaces involving flammable and explosive materials have been paying increasing attention to safety and adopting more standardized practices. Explosion-proof walkie-talkies are also receiving greater emphasis in these environments; therefore, it is important to choose such devices carefully, opting for manufacturers that offer reliable quality and excellent service. Avoid creating hazards.
Reply #22021-03-18
I didn’t pay much attention to this aspect at the time! For products manufactured by reputable manufacturers, tell them about the usage environment, temperature, and explosion-proof rating, and the manufacturer will take care of it for you!
Reply #32021-03-19
It is necessary to pay attention when choosing explosion-proof walkie-talkies, after all, it involves safety risks. When making a selection, it is necessary to describe the surrounding environment clearly to avoid omissions.

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