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2026-10-07

Extension Lead Safety — What Every Business Should Know

Extension leads are one of the most misused electrical items in workplaces. Here is how to use them safely.

Extension leads are found in nearly every workplace, yet they are one of the most commonly misused electrical items.

Common Extension Lead Dangers

  • Overloading: Plugging too many high-wattage appliances into one extension
  • Daisy-chaining: Plugging one extension into another is a serious fire risk
  • Coiled cables: A coiled extension lead carrying a load can overheat
  • Trip hazards: Cables running across walkways
  • Damage: Cables trapped under furniture or doors

Extension Lead Rules for the Workplace

  1. Never daisy-chain extension leads
  2. Fully unwind before use
  3. Do not exceed the rated load (usually 13A or 3,120W)
  4. Use cable protectors over walkways
  5. Include all extension leads in your PAT testing schedule

Should Extension Leads Be PAT Tested?

Yes. Extension leads should be PAT tested at least annually. They are subject to more wear and damage than most appliances because they are moved, trodden on, and pulled frequently.

Book your PAT test and make sure your extension leads are safe.


Need a PAT Test in Greater Manchester?

Based in Salford, covering all of Greater Manchester. From £59, same-day certificates.

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