Which of the following must be included on an electric meter badge?

The correct choice includes all the elements listed, as a comprehensive electric meter badge must provide essential information for identification and safety.

Including the manufacturer's name and the number of wires ensures that users can identify the meter's origin and type, facilitating proper maintenance and compatibility with electrical systems. The type designation serves to categorize the meter based on its intended application, while the voltage rating is critical for ensuring the meter operates within safe and effective limits, preventing damage and hazards during use.

Test amperes and meter class indicate the current capacity and classification of the meter, which are vital for ensuring that it is suitable for the load it will measure or manage. This information helps technicians and users understand the meter’s capabilities and limits, guiding safe and efficient operation.

In summary, the inclusion of all of these components on an electric meter badge is essential for accurate identification, safe operation, and compliance with industry standards. Each piece of information contributes to the overall functionality and safety of the meter in its application.