Why is a micro-ohm meter important in maintenance?

A micro-ohm meter is essential in maintenance primarily because it measures electrical resistance in micro-ohms, which is particularly important for assessing the integrity of connections in electrical systems. With the capability to detect very low resistance levels, this device is crucial for identifying issues such as poor connections, which may not be evident through standard measurement techniques. By accurately measuring the resistance of contacts and joints, electricians can determine if they are within acceptable limits, thus ensuring optimal performance and safety in electrical installations.

This high precision is particularly beneficial for testing components like circuit breakers, busbars, and transformer connections, where even a small increase in resistance can lead to overheating and equipment failure over time. Consequently, having a tool like a micro-ohm meter enables maintenance professionals to proactively address potential problems before they escalate into more significant issues.