This complete checklist covers every critical inspection point — from daily panel walk-arounds through annual thermal imaging and breaker testing — giving your electrical maintenance team the framework to protect people, protect assets, and keep your facility compliant with. This complete checklist covers every critical inspection point — from daily panel walk-arounds through annual thermal imaging and breaker testing — giving your electrical maintenance team the framework to protect people, protect assets, and keep your facility compliant with. The following chart shows the theoretical life of a typical Power Distribution Unit (PDU), Remote Power Panel (RPP), & Static Transfer Switch (STS). For components marked ◆, Eaton recommends preventive maintenance (PM) inspections in the year indicated. During the PM visit Eaton inspects, tests. A structured electrical panel and power distribution maintenance program is the most direct way to prevent that outcome: the 2023 NFPA 70B standard has now made annual infrared thermography inspections of all electrical equipment mandatory, shifting electrical maintenance from a recommended. The primary goal of a preventative maintenance plan for power distribution infrastructure is to minimize the impact that an equipment malfunction or power outage will have on business operations or service. Why maintain electrical distribution equipment? Carrying out maintenance in. All LV switchboards should be completely cleaned, vacuumed, and given a thorough visual check on the inside and out. Be sure to check the rating as well as the continuity of the fuse in the control circuit.