What is the significance of the CAT ratings on electrical measurement devices?

The significance of CAT ratings on electrical measurement devices lies in their indication of the device's ability to withstand voltages. These ratings categorize measurement tools based on their capability to handle transient overvoltages that may occur in specific environments, ensuring that users are protected from electrical hazards during operation. CAT ratings are essential because they offer clarity on the safety standards a device meets, allowing users to choose the appropriate tool for their specific working environment. Higher CAT ratings correspond to higher levels of voltage protection, which is critical for safety in high-voltage applications. Understanding these ratings helps prevent accidents and equipment damage by ensuring that the right measuring instrument is used in appropriate electrical settings.