# Cleaning Power Panels and High Voltage Electronic Cabinets Inside Data Centers > Learn why general cleaning teams must avoid data center power panels and high-voltage cabinets. Discover how clear boundaries protect personnel and equipment. - Author: Ashraf Almuhtaseb (Data Center Cleaning Specialist) - Published: 2026-06-07 - Updated: 2026-11-05 - URL: https://idata.center/en/articles/cleaning-power-panels ## Key takeaways - Data center cleaning teams must never clean power panels or high-voltage cabinets, as this work is strictly for qualified electricians. - Cleaning inside energized electrical enclosures risks severe electric shock, arc flash hazards, and accidental equipment damage. - Cleaning personnel should limit their tasks to the surrounding areas using HEPA vacuums and non-conductive, anti-static tools. - Electrical exclusion zones must be clearly marked on site and outlined in the cleaning team's scope of work to prevent accidents. ## Should Cleaning Teams Clean Power Panels in a Data Center? No. A data center cleaning team should not clean power panels, switchboards, UPS cabinets or any other high-voltage electrical enclosure. That work belongs to qualified electrical staff, who can de-energize the equipment, clean it safely and put it back in service. The cleaning team's job is the area around the equipment, up to a clearly marked boundary, and not one step further. ## Why should cleaning teams stay away from high-voltage equipment? ### Risk of electrical injury Power panels and high-voltage cabinets carry live current. Opening them, or reaching close to exposed parts, exposes a person to electric shock and arc flash. [NFPA 70E, Standard for Electrical Safety in the Workplace](https://webstore.ansi.org/standards/nfpa/nfpa70e2027) exists to protect workers from shock, electrocution, arc flash and arc blast, and it is the reference that electrical safety programmes are built on. ### Risk to the equipment Cleaning liquids, moisture or careless handling can damage components and trip protection devices. Wiping or brushing inside a panel can loosen connections or push dust deeper into terminals. In a data center, a tripped breaker can take down a whole row of racks. ### It needs specialist training Work inside electrical equipment requires people trained and authorized for it: qualified electricians with the right tools, PPE and procedures. Cleaning technicians, however skilled at contamination control, are not electrical workers. ### Standards and liability NFPA 70E and site electrical safety rules keep unqualified people away from exposed energized parts. If a cleaning team opens a panel and someone is hurt, the liability falls on the contractor and the site. Keep cleaning tasks within these rules. **Note:** Make sure if your clients follow a local electrical safety regulation (for example from the Saudi Energy Company or the site's own HSE rules), ## What can the cleaning team do instead? ### Clean the surroundings - Clean floors, walls and nearby surfaces around power panels without touching the equipment. - Use a HEPA vacuum and dry or lightly damp methods. No liquids near the panel. - Use non-conductive, anti-static tools, as described in [what is ESD cleaning in data centers](https://idata.center/en/articles/esd-cleaning-data-centers). ### Report what you see If you notice heavy dust on panel vents, signs of overheating, a burning smell or unusual noise, stop and report it to the facility team. Do not investigate yourself. ### Coordinate with the facility team Ask the facility team to schedule an inspection or maintenance session for the panels. If cleaning inside is needed, they will arrange a qualified electrician, often during a planned maintenance window. ## Who should clean power panels? **Qualified electricians.** Electricians trained and authorized for the voltage involved can isolate the equipment, prove it dead, clean it with suitable tools and re-energize it after the work. **The facility's electrical contractor.** Many sites have a maintenance contract for power infrastructure that already includes inspection and cleaning of panels, UPS and switchgear. ## Exclusion zone checklist Before the cleaning team starts, agree and mark the electrical exclusion zones: 1. List every room and cabinet that is off limits: switchboards, distribution panels, UPS, battery rooms, transformers and PDUs. 2. Mark each zone on the floor plan and on site with tape or signs reading "No cleaning, electrical equipment". 3. Agree the boundary distance with the facility's electrical lead. 4. Brief the cleaning team on day one and walk the zones with them. 5. Make sure cleaning machines never plug into panel or rack outlets. 6. Name the person to call if the team sees a fault or needs access. ## Recommended practices - Do not allow general cleaning teams to touch or clean high-voltage equipment. - Mark restricted areas clearly as "No cleaning" zones for non-qualified people. - Work with the electrical maintenance team for any cleaning or inspection inside panels. - Write the exclusions into the scope of work, as explained in [what can affect the data center cleaning plan](https://idata.center/en/articles/data-center-cleaning-plan-factors). - Dress for the white space, as in [what to wear for technical cleaning](https://idata.center/en/articles/data-center-cleaning-clothing). That clothing is for contamination control, not electrical protection. A clean power room is the result of two teams working side by side: cleaners around the equipment and electricians inside it. Keep that line clear, and both the people and the power stay safe. ## Frequently asked questions ### Should data center cleaning teams clean power panels and high-voltage cabinets? No. Power panels, switchboards, and UPS cabinets must only be cleaned by qualified electrical staff who can de-energize the equipment safely. ### What are the main risks if cleaning teams open high-voltage electrical enclosures? The main risks are electrical injury from electric shock and arc flash, as well as equipment damage from moisture, cleaning liquids, or loosened connections. ### What cleaning tasks are allowed around power panels for data center cleaning teams? Cleaning teams can clean floors, walls, and nearby surfaces using HEPA vacuums and non-conductive, anti-static tools without touching the equipment or using liquids near the panel. ### What should a cleaning team do if they notice heavy dust, a burning smell, or unusual noise from a panel? They must stop, avoid investigating themselves, and report the observation immediately to the facility team. ### Who is authorized to clean the inside of data center power panels? Qualified electricians trained and authorized for the specific voltage are the only ones who can isolate, clean, and re-energize the equipment. --- Ashraf Almuhtaseb is a Data Center Technical Cleaning Expert with over 9 years of specialized field experience since 2017, and the only independent professional in the MENA region publishing dedicated technical content on data center cleaning, contamination control, and ISO 14644 compliance. © 2026 Ashraf Almuhtaseb — https://idata.center/