What is the modernized version of metric known as in the National Electrical Code?

The modernized version of the metric system referred to in the National Electrical Code is known as the International System of Units (SI). This system is a globally accepted framework for quantifying different physical quantities, including length, mass, time, and electrical current, among others.

The use of the International System of Units ensures consistency and clarity in electrical installations and documentation. In the context of the National Electrical Code, adopting SI units facilitates international trade and cooperation by standardizing measurements, which is essential in a globalized environment.

While other naming possibilities exist, like the Metric Conversion System or the Metric Standard Code, these terms do not capture the official and comprehensive nature of the SI system as recognized and utilized under current scientific and engineering protocols. Therefore, the International System of Units (SI) correctly aligns with the requirements and updates in the NEC regarding measurement standards.