National Standard For Explosion-proof Cameras

National standards GB 3836.1-2010, GB 3836.2-2010, GB 12476.1-2000, GB 12476.2-2010 Electrical Equipment for Explosive Gas Environments.
The development of this standard to a certain extent refers to the standards of the International Electrotechnical Commission for electrical products used in explosive gas environments, and is developed in some aspects higher than this standard.