What is the maximum voltage rating for meters and meter sockets permitted to be connected to the supply side of the service disconnecting means?

The maximum voltage rating for meters and meter sockets that can be connected to the supply side of the service disconnecting means is set at 1000 volts. This standard is established to ensure safety and compatibility with typical voltage levels found in both residential and commercial electrical systems. The rating of 1000 volts allows for a wide range of applications, accommodating various infrastructure needs while maintaining safety standards.

Using equipment rated for 1000 volts helps prevent hazards associated with over-voltage situations, ensuring that the equipment can handle the electrical stresses it may encounter during operation. The rating is in line with the National Electrical Code (NEC) requirements, ensuring that meters and their associated components can reliably function in the service entrance applications.

Additionally, higher voltage ratings, such as 1200 volts, tend to be unsuitable for standard residential and commercial meter installations, as most systems do not operate at these levels, rendering such specifications unnecessary and potentially misleading. Therefore, the adherence to the 1000-volt standard provides a practical and safe guideline for meter installations.