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Common handheld terminal devices include mobiles phoness, walkie talkies, PDAs, 4G/5G terminals, etc. These types of devices are often used by personnel entering explosive hazardous areas. They are gene……

In explosive environments, in addition to the use of electrical equipment, a large amount of non electrical equipment is also used, such as mechanical valves, chain hoists, exoskeleton hydraulic/pneum……

With the advancement of industrial technology and automation, more and more integrated equipment is being applied to explosive hazardous areas. Common ones include automated production equipment, A……

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Positive pressure type "p" is an explosion-proof protection type that maintains the pressure of the protective gas inside the casing higher than the external pressure to prevent external exp……