Examine for any signs of overheating or arcing. Verify that the box is securely mounted and that there are no loose connections. Internal Inspection Open the distribution box and check for dust and debris accumulation. Distribution Maintenance Requirements Overhead and Underground Equipment Miscellaneous This utility procedure classifies maintenance tasks for miscellaneous electric overhead (OH) and underground (UG) equipment, including capacitor banks, fault indicators, interrupters, reclosers, voltage. Check for signs of corrosion or rust. Non-intrusive means the switchboard can monitor and operate the electrical system without directly interference with the electrical wiring. Worker Safety Protocols (Guarding systems, electrical safety gear) Digital Data Management (How errors are tracked/prevented systematically) Loading/Dispatch Operations (Packaging survives real shipping abuse?) Let's talk materials – because no amount of clever engineering saves a distribution box. By inspecting and patrolling our distribution lines and facilities, we stand a greater chance of maintaining the system to be able to deliver safe and reliable service to our customers. Use. A preventive maintenance checklist for electrical distribution systems in commercial buildings typically includes various tasks and inspections to ensure the system's safety and reliability such as: Check for any signs of damage, wear, or overheating in electrical panels, switchgear, transformers.