Why do we need explosion-proof sockets for 380V electricity, while ordinary sockets can be used for 220V electricity and mounted on the wall?
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Why do we need explosion-proof sockets for 380V electricity, while ordinary sockets (wall-mounted) are sufficient for 220V electricity?
Explosion-proof sockets are generally used in explosion-proof areas, while ordinary sockets can only be used in regular areas. As for using explosion-proof sockets for 380V and ordinary sockets for 220V, there’s no absolute requirement, right?
Depending on the location of use, electrical sparks can be generated when plugging in or unplugging a 220V socket; it cannot be used in explosion-proof areas either
Regarding the workplace, explosion-proof sockets must be used in explosion-proof areas, even for 220V.
Explosion protection in explosion-proof areas is independent of voltage levels.
That is, electrical equipment rated at 36V also needs to be explosion-proof in explosive areas.
The selection of sockets should take into account the installation environment and voltage level
As long as it is in an explosion-proof area, explosion-proof sockets must be installed
Please refer to: GB50058-2014 Code for Design of Electrical Installations in Explosive Atmospheres, 5.1.1. The design of electrical installations in explosive atmospheres shall comply with the following provisions: 7. Explosion-proof electrical equipment installed in explosive atmospheres shall meet the relevant requirements of the current standard **“Explosive Atmospheres – Part 1: Equipment – General Requirements” GB3836.1.
The explosion protection of electrical equipment has nothing to do with the voltage level.
The selection of explosion-proof products is independent of voltage; explosion-proof products are used in any area where explosions are a risk.