What Is PAT Testing? Portable Appliance Testing (PAT) is the process of inspecting and testing electrical appliances to ensure they're safe to use. It involves a combination of visual checks and electrical tests using specialist PAT testing equipment. The aim is to identify faults — such as damaged cables, faulty earthing, or insulation breakdown — before they cause electric shocks or fires. Despite common misconception, PAT testing is not specifically required by a single piece of legislation. However, several regulations place a duty on employers and duty holders to ensure electrical equipment is safe, and PAT testing is the recognised way to demonstrate compliance. Who Needs PAT Testing? If you're responsible for a workplace, public venue, or rented property in Nottingham, PAT testing is relevant to you. This includes: • Employers: The Electricity at Work Regulations 1989 require employers to ensure all electrical equipment used by employees is maintained in a safe condition. • Landlords: While there's no specific legal requirement for PAT testing in domestic lets, the Landlord and Tenant Act 1985 requires landlords to ensure the property is safe. PAT testing appliances you provide (such as white goods) is best practice. • Schools and educational institutions: A duty of care to students and staff requires regular electrical safety checks. • Hotels, B&Bs, and hospitality venues: Fire safety regulations and duty of care obligations mean PAT testing is essential. • Offices, retail premises, and commercial buildings: Employers have a responsibility to maintain safe working conditions. • Construction sites: Portable tools used on site are subject to more frequent testing due to harsher operating conditions. What Appliances Need Testing? PAT testing covers portable and transportable electrical appliances. This includes any equipment that has a plug and connects to the mains supply. Common examples include: • Computers, monitors, and printers • Kettles, microwaves, and toasters • Desk lamps and portable heaters • Extension leads and multi-socket adapters • Phone and laptop chargers • Power tools and workshop equipment • Vending machines and catering equipment Fixed appliances (such as hand dryers, air conditioning units, and water heaters) may also be tested, but these are more often covered under an EICR or fixed equipment inspection. How Often Should PAT Testing Be Done? There is no fixed legal frequency for PAT testing. The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment provides guidance based on the type of equipment and the environment in which it's used: • Office equipment (low risk): Visual check every 2 years, combined inspection and test every 4 years • Portable equipment in commercial kitchens, workshops (higher risk): Visual check every 6 months, combined inspection and test every 12 months • Construction site equipment (high risk): Visual check weekly, combined inspection and test every 3 months • IT equipment, chargers (double insulated, low risk): Visual check every 2 years, formal test every 4 years The key principle is that higher-risk environments and equipment used more roughly need more frequent testing. A sensible, risk-based approach is more important than sticking to arbitrary timescales. What Does a PAT Test Involve? A PAT test consists of two main stages: Visual Inspection The tester examines the appliance, its cable, and plug for visible signs of damage or wear. This includes checking for: • Damaged, frayed, or cut cables • Cracked or damaged plugs • Signs of overheating or burn marks • Loose connections • Incorrectly rated fuses • Missing or damaged outer casing Electrical Testing Using a calibrated PAT tester, the following electrical tests are carried out: • Earth continuity test: Checks that the earth connection is intact (for Class I appliances) • Insulation resistance test: Measures the insulation between live parts and the earth to detect breakdown • Lead polarity test: Confirms correct wiring of plugs and leads • Functional checks: The appliance is powered on to check for normal operation Each tested appliance receives a pass or fail label with the test date and the next test due date. How Much Does PAT Testing Cost in Nottingham? PAT testing is usually priced per appliance, with discounts for larger quantities. Typical rates in Nottingham for 2026 are: • Up to 50 appliances: £1.50 – £2.50 per item • 50 – 200 appliances: £1.00 – £1.80 per item • 200+ appliances: £0.80 – £1.50 per item Some testers charge a minimum callout fee (typically £50 – £80) for smaller jobs. Always confirm pricing before booking. PAT Testing with Somo Electrical Somo Electrical provides professional PAT testing services for businesses across Nottingham. As a NAPIT-registered contractor, we use calibrated testing equipment and provide comprehensive certification for your records. We can work around your business hours to minimise disruption and provide clear, easy-to-understand reports. Whether you run an office, shop, warehouse, or hospitality venue in Nottingham, we can set up a PAT testing schedule that keeps you compliant and your team safe. Contact Somo Electrical today to arrange PAT testing for your business. We'll provide a competitive quote based on the number and type of appliances you need tested.