Risk is Multifaceted, it effects People, Environment, Assets and Reputation
Heating Elements Left on can Start Fires
There are multiple ways equipment can set on fire, the Temperature sensor lies, telling the heating controller to add more heat, lightning or other electrical surges can cause Solid State Relay failures.
The heat can fail on to the point it melts metal, it can also start fires
A second Sensor is added to increases Detection for safe temperature. If it fails to see safe,
it disconnects the power for electrical heat.
Corrective and Preventative Actions are steps taken to reduce the Risk
Standard Operating Procedures with one User is only credited 0.5 because counting on a person to succeed 100% is unrealistic, it often requires a second person for review