The ground wire must be colored what colors?

Ground wires are standardized in electrical installations to ensure safety and proper identification. It is essential for grounding wires to be easily recognizable to anyone working with or on electrical systems. The convention for ground wires is that they are colored green or green with a yellow stripe. This color coding helps prevent confusion with other conductors and indicates that the wire is specifically for grounding purposes, which is critical for electrical safety.

Using the designated colors for ground wires is important as it ensures compliance with electrical codes and promotes safety. If someone was to work on the system, being able to quickly identify a ground wire reduces the risk of improper connections that could lead to electrical hazards. Recognizing and adhering to these standards is an integral part of training and practice in Piping and Wiring for machine rooms and hoistways.