Can Non-explosion-Proof Electrical Equipment Be Used in Explosion-Proof Zone 2?

Utilizing non-explosion-proof equipment is strictly prohibited in regular production processes.

Equipment protection level	Ga	Gb	Gc
The protection levels for equipment are prescribed based on the varying characteristics of explosive gas environments, explosive dust environments, and coal mine methane explosive environments, as well as the possibility of the equipment becoming an ignition source.	In explosive gas environments, equipment is designated with a "high" level of protection, ensuring that it does not serve as an ignition source during regular operation, anticipated malfunctions, or rare failures.	In explosive gas environments, equipment is assigned a "high" level of protection, ensuring that it does not serve as an ignition source during normal operation or anticipated fault conditic ions.	In explosive gas environments, equipment is typically assigned a "general" ievel of protection, preventing it from serving as an ignition source during regular operation. Furthermore, supplementary protective easures can be implemented to minimize the formation of effective ignition sources, particularly in cases of anticipated and frequent occurrences (e.g. failures in lighting fixtures).
Zone	Zone 0	Zone 1	Zone 1

Yet, their usage is permitted during installation, maintenance, or extensive repairs, provided that, as per established procedures, it’s confirmed that these activities do not create conditions conducive to an explosive environment.