To limit the probability that ineffectiveness or failure of the components [electrical equipment, mechanical systems, piping, valves, and automatic and manual control and safety devices] will lead to an unwanted release of dangerous goods, which could lead to a fire or explosion, which could lead to harm to persons.
To limit the probability that the components [electrical equipment, mechanical systems, piping, valves, and automatic and manual control and safety devices] will not operate as originally intended in a fire situation, which could lead to a fire or explosion, which could lead to harm to persons.