After repairing or replacing a damaged cable, what is the recommended next step?

• A. Retest insulation and continuity.
• B. Only test for insulation, not continuity.
• C. Charge the circuit with higher voltage.
• D. Disconnect the circuit permanently.

Answer: (A)

After repairing or replacing a damaged cable, you must verify both the insulation integrity and the continuity of the circuit. Retesting insulation ensures there’s no leakage, insulation breakdown, or potential shock path, while testing continuity confirms there is a solid, unbroken conductive path from end to end. If you only test insulation, a break in the conductor could go undetected; if you only test continuity, insulation problems could still pose shock or fire risks. Re-energizing the circuit with higher voltage is dangerous and inappropriate as a diagnostic step, and disconnecting the circuit permanently defeats the purpose of the repair.