Neglected DB boxes can lead to overheating, electrical fires, power outages, and costly downtime. A Distribution Board (DB), also known as a consumer unit or electrical panel, is the central hub that distributes electricity from the main supply to various circuits in a building. It contains circuit breakers, RCDs, busbars, surge protectors, and other critical components. UAE's extreme climate. This is where Planned Preventative Maintenance (PPM) becomes essential—it is the proactive strategy of regularly inspecting and servicing electrical assets before they fail, ensuring operational continuity in the UAE's demanding climate. In the demanding commercial and industrial environments of. We at Masdar Al Shams Technical Services provide top-notch solutions for homes, businesses, and industry. (a) Distribution Company Earthed System (TN-S) 108 A5.