Devices used in hazardous areas are to be checked on potiential sources of ignition. The types of ignition sources are defined in EN 1127-1.
First, the intended use of the device is described. Then through a risk analysis locations where explosive atmospheres may occur are set. In conclusion, the frequency of these potential dangers are determined with focus on the specific operation conditions.
The result of the risk assessment is a clear report in which potential sources of ignition are presented.