current clamp

A current clamp is a device used in electrical measurement to detect the flow of electrical current in a wire without directly touching or disconnecting it. It works by wrapping a magnetic sensor around a conductor; when current flows through the wire, it creates a magnetic field. The clamp detects this magnetic field and converts it into an electrical signal, allowing technicians to measure current levels safely and accurately. This tool is commonly used in maintenance and troubleshooting of electrical systems to monitor current without interrupting operation or making invasive connections.