What does the abbreviation OL stand for in electrical measurements?

The abbreviation OL in electrical measurements commonly stands for "Over Load." When a measurement device, such as a multimeter, displays OL, it indicates that the value being measured exceeds the maximum range that the device can handle. This context is essential for understanding that OL signifies a condition where the current or voltage exceeds the limits of the instrument, which is critical for both safety and accuracy in electrical testing. Being aware of this warning allows users to adjust their measurement approach or switch to a higher range to obtain a valid measurement, thereby preventing potential damage to the device or circuit being tested.