09/05/2026
What is EET (Electrical Equipment Testing)
First and foremost, most people still call it PAT testing. However, the correct industry term is now Electrical Equipment Testing (EET).
Electrical safety in the workplace has never been more important. Whether you’re a qualified PAT tester or looking to gain a recognised PAT certification, understanding EET is essential. While PAT testing remains commonly used, EET testing is the modern, inclusive term that reflects the full scope of electrical safety across all types of equipment.
The term PAT (Portable Appliance Testing) was originally used to describe the testing of portable electrical appliances. However, modern workplaces now use a wide range of electrical equipment that doesn’t always fit neatly into the definition of “portable”.
To reflect this, the industry has moved towards the term Electrical Equipment Testing (EET). The IET Code of Practice updated its guidance to recognise that testing should apply to all electrical equipment, not just appliances that can be unplugged and moved easily.
Importantly, this change is about terminology rather than technique. The purpose of the testing remains the same — to ensure equipment is safe for continued use.
Key differences at a glance:
PAT describes a type of equipment (portable appliances).
EET describes the full scope of what is tested (all electrical equipment).
The testing methods remain unchanged.
EET provides a clearer and more accurate description of modern workplace testing.
Electrical Equipment Testing (EET) is the process of inspecting and testing electrical equipment to confirm it is safe for continued use in the workplace. In practical terms, it follows the same principles as traditional PAT testing, combining visual inspection with electrical tests to identify faults, damage, or potential hazards.
EET applies to a wide range of equipment, including:
Portable appliances such as kettles, power tools, and computers.
Moveable equipment such as floor-standing heaters and extension leads.
Fixed electrical equipment connected to the supply.
EET is carried out in line with guidance from the IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment (5th Edition) and supports compliance with the Electricity at Work Regulations 1989.
Its purpose is the same as PAT testing has always been, to reduce the risk of electric shock, fire, and equipment failure by ensuring faults are identified and managed before they become a danger.
Whether you are testing as a business or in-house, a strong EET programme goes beyond simply meeting compliance requirements, it’s about minimising risks and keeping people safe.
Benefits of EET:
Ensures all electrical equipment is safe to use.
Reduces the risk of electrical shocks, fires, and equipment failure.
Demonstrates due diligence to regulators, insurers, and employees.
Enables risk-based testing, where high-risk equipment is tested more frequently than low-risk items.
