HOW TO USE A CLAMP METER TO MEASURE INRUSH CURRENT?
How to use a clamp meter to measure inrush current Inrush current effect is common in electric motors. Sometimes, in case of ill-designed electrical wiring systems, switching on the motor may activate the fuse. It is caused by the inrush current â when the motor starts, it takes the current much higher than the regular operating current or than the motor which is in a stable working mode. The effect is rather short-lasting. For example, for a 3-phase motor it lasts 75 to 150ms, but the current increases by 500% to 1200%, which may cause serious problems and malfun...
Source: newelectronics.co.uk