DENDROLOGY

Detailed explanation-1: -Then, the level of risk of an explosion is based on the frequency and duration of the occurrence of an explosive atmosphere. This level of risk is represented by classifying the hazardous area as Zone 0, Zone 1 or Zone 2 (for gas, vapour and mist atmospheres) or Zone 21 or Zone 22 for dust atmospheres.

Detailed explanation-2: -A Class I, Zone 1 location is a location. In which ignitible concentrations of flammable gases or vapors are likely to exist under normal operating conditions; or. In which ignitible concentrations of flammable gases or vapors may exist frequently because of repair or maintenance operations or because of leakage; or.

Detailed explanation-3: -EXAMPLES OF HAZARDOUS AREAS Gas wells, gas processing plants and gas-fired generators are common areas that contain hazardous areas due to the natural gas that is released in different sections of the plant in concentrations that can be considered as a flammable mixture.