Why electrical devices need protection when used in a hazardous location!

To demonstrate why it is critical that electrical equipment be protected in a hazardous location, let’s look at the installation of an electrical circuit in such an area without any protection.
A pressure sensor is placed in a hazardous location.
Power is fed to it from a safe area, outside the hazardous location.
Our circuit acts as a load in this configuration.
If a fault happens within the safe area, a voltage of 250V or even higher can enter the hazardous area. This in turn will generate higher current and power into our circuit and/or a possible arc or spark.
Furthermore, if a fault happens within our pressure sensor located inside the hazardous area, a high value short circuit current can flow into the hazardous location from our power supply.
In both of these fault conditions, excess temperature, arcs, and sparks can ignite the explosive atmosphere present.
For more details, please visit our website www.hazlocdirectory.com