Which of the following are steps in establishing and verifying an electrically safe work condition?

Which of the following are steps in establishing and verifying an electrically safe work condition?

• A. None of the above
• B. Apply lockout/tagout devices
• C. Block or relieve stored nonelectrical energy
• D. Both a and b

Answer: (D)

Establishing and verifying an electrically safe work condition means isolating the equipment from its energy sources and removing all energy hazards before anyone works on it. Applying lockout/tagout devices is how you physically prevent re-energization and provide a clear warning that the equipment must not be turned on. Blocking or relieving stored energy addresses energy that isn’t present in the circuit but could still cause harm—like residual electrical charge in capacitors, or mechanical energy stored in springs, elevated parts, or springs that could move unexpectedly. Together, these steps ensure there is no unintended energy available when work is performed, which is exactly what the procedure aims to achieve. After these steps, the standard practice is to verify by checking for zero energy with an appropriate tester to confirm the condition is electrically safe. Since both isolating with lockout/tagout and handling stored energy are required parts of the process, the correct choice reflects that both are involved.

Establishing and verifying an electrically safe work condition means isolating the equipment from its energy sources and removing all energy hazards before anyone works on it. Applying lockout/tagout devices is how you physically prevent re-energization and provide a clear warning that the equipment must not be turned on. Blocking or relieving stored energy addresses energy that isn’t present in the circuit but could still cause harm—like residual electrical charge in capacitors, or mechanical energy stored in springs, elevated parts, or springs that could move unexpectedly. Together, these steps ensure there is no unintended energy available when work is performed, which is exactly what the procedure aims to achieve. After these steps, the standard practice is to verify by checking for zero energy with an appropriate tester to confirm the condition is electrically safe. Since both isolating with lockout/tagout and handling stored energy are required parts of the process, the correct choice reflects that both are involved.