Why is it critical to avoid using electrical switches in the presence of a suspected gas leak?

When there is a suspected gas leak, using electrical switches can generate sparks, which pose a significant hazard. The presence of flammable gases, when ignited by a spark, can lead to a fire or an explosion. This risk is heightened in enclosed spaces where gas concentration can accumulate and create a highly combustible environment.

Minimizing the risk of ignition is paramount in safety protocols surrounding gas leaks, which is why immediate evacuation and the shutdown of sources of ignition are critical steps in these situations. The priority is to maintain a safe environment and prevent any potential ignition sources that could lead to catastrophic outcomes.