Operating Environment Temperature of Explosion-Proof Electrical Equipment

It is well-known that the working environment conditions of electrical equipment are crucial for their safe use, with ambient temperature being a significant factor for their safe operation. However, every electrical device must have a specified operational environmental temperature. Regarding explosion-proof electrical equipment, the national standard GB3836.1 “Electrical Apparatus for Explosive Gas Atmospheres Part 1: General Requirements” stipulates an operating temperature range of -20 to +40°C.

If the operating environment temperature of explosion-proof electrical equipment exceeds this specified range, manufacturers must accurately indicate this temperature range on the product’s nameplate. Furthermore, this information should be clearly Adescribed in relevant user documentation, such as the instruction manual.

It is important to note that when designers set certain performance specifications for a product, they consider the actual operating environmental conditions. If the actual operating environment differs from the designed environment, the product may not achieve its performance specifications and could be severely damaged. Operators should be aware that for explosion-proof electrical equipment, operating in temperatures beyond the specified range might impact some of the explosion-proof safety features.