☑ Ensure the distribution box has a "Personnel Working" sign before inspection. Provision of MCB/ELCB/RCCB for power connection. Inspect for any physical damage to the enclosure. Completely clean, hoover and check the outside simply visually. Verify that any installed electronic surge protection is still. An electrical distribution board inspection checklist is crucial for ensuring the safety and reliability of electrical systems. It covers clear access and housekeeping, panel integrity and corrosion, proper mounting and canopy protection, junction box condition, covered switches and displays, and.