Question 3 of 30
What is meant by "intrinsically safe"?
A
Equipment can be used in hazardous atmosphere
B
An electrical circuit is intrinsically safe if any spark produced normally or accidentally is incapable of igniting a gas mixture
C
There is no danger if sparks are produced in an unsafe atmosphere
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Answer & Explanation
The correct answer is Option B: An electrical circuit is intrinsically safe if any spark produced normally or accidentally is incapable of igniting a gas mixture.
Intrinsically safe equipment is designed so that the electrical and thermal energy generated by the device—even under fault conditions—is insufficient to ignite a specific hazardous gas mixture.