Which of the following best describes the aim of periodic inspection and testing of fixed wiring?

• A. To increase system energy consumption.
• B. To ensure continued safety of fixed wiring and identify deterioration or faults.
• C. To replace all cables every year.
• D. To upgrade to higher voltage.

Answer: (B)

Periodic inspection and testing of fixed wiring is about confirming that a building’s permanent electrical installation remains safe and revealing signs of wear, damage, or faults before they cause harm. The aim is to ensure continued safety of fixed wiring and identify deterioration or faults so that any dangerous conditions can be repaired or remedied. It isn’t about increasing energy consumption, replacing cables every year, or upgrading to a higher voltage. In practice, tests look for issues such as damaged insulation, loose connections, moisture ingress, and faulty protective devices, so problems can be found and addressed before they lead to problems like electric shock or fire.