In-service inspection and testing of electrical equipment, commonly referred to as Portable Appliance Testing (PAT), is a crucial part of ensuring electrical safety compliance. This process involves inspecting and testing electrical appliances to confirm they are safe for use. It includes both a visual inspection and, when necessary, the PAT testing process, which employs specialist equipment for electrical testing.
Portable Appliance Testing applies to any portable electrical appliance—defined as any device that can be easily moved and plugged into a power supply. This encompasses items such as kettles, computers, extension leads, printers, and power tools. Over time, these appliances can sustain damage or develop faults, which increases the risk of electric shock, burns, or fire.