Exams / HS&E MAP / Electrical safety / Question 1
HS&E MAP practice question: Electrical safety (1 of 4)
C. General safety A free question from our original HS&E MAP practice exam. Try it, then open the answer to see why each option is right or wrong.
Last verified against HSE guidance and the law ·How we write our questions
A contractor wants to work on a circuit while it is live to "save time".
What does HSE say?
Choose one answer.
- AA. It is fine for circuits under 230 volts
- BB. Avoid live work; isolate the circuit first
- CC. It is fine if the electrician is very experienced
- DD. It is fine if the electrician wears gloves
Show the answer and explanation
Answer: B
- A. Wrong: Wrong. 230 volts can kill.
- B. Right: Right. HSE says safe isolation procedures must be followed. Live work is only allowed in rare, justified cases.
- C. Wrong: Wrong. Experience doesn't make live work safe.
- D. Wrong: Wrong. Gloves alone are not a safe system of work.
Explanation
Work on electrical systems should be done dead, after safe isolation, by competent people.
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