What does SI stand for?

The term SI stands for the System of International Units, which is the modern form of the metric system. It is used globally in science, industries, and many aspects of daily life. The SI provides a standardized way to measure physical quantities such as length, mass, time, and electrical current, ensuring consistency and clarity in communication across different fields and countries.

This system is crucial for apprentice linemen as they deal with measurements and specifications that are often based on SI units, particularly when working with electrical systems, where units like volts, amperes, and ohms are fundamental. Understanding the SI system enables linemen to accurately interpret blueprints, follow safety guidelines, and perform calculations necessary for their work.