What are the hazardous area classification?

Question

Accepted Answer

Hazardous area classification is the process of identifying and categorizing areas where explosive atmospheres may occur.

Hazardous areas are classified based on the likelihood of an explosive atmosphere occurring and the duration of its presence.
There are three main factors that contribute to the formation of an explosive atmosphere: the presence of a flammable substance, oxygen, and an ignition source.
The classification system is used to determine the type of equipment and protective measures required for each area.
Examples of hazardous areas include oil refineries, chemical plants, and grain silos.
The classification system is typically based on national or international standards, such as the National Electrical Code (NEC) or the International Electrotechnical Commission (IEC).

Popular interview questions of Senior Assistant Engineer