In industrial machinery where two or more machines are working together (a plastics extrusion line) have control wires between machines and if these signals originate from one of the machines (a separate source) what code establishes the color for various voltages and disconnecting means?
Example; If one of the machines provide 240v for the entire line how should these conductors be identified in the other machines? I assume the color not apply of they go through a disconnect but does it apply on the supply side of the disconnect?
Example; If a line comprised of multiple machines has one safety circuit controller what code refers to wire colors for e-stops on the other machines?
If I consider the "extrusion line" as one machine do the color codes not apply?
The only color code I found regarding isolated power is 517.106 (5) but as I have seen in the industry the only color that is common is yellow for 120v ac from an alternate source not controlled by a disconnect.
Example; If one of the machines provide 240v for the entire line how should these conductors be identified in the other machines? I assume the color not apply of they go through a disconnect but does it apply on the supply side of the disconnect?
Example; If a line comprised of multiple machines has one safety circuit controller what code refers to wire colors for e-stops on the other machines?
If I consider the "extrusion line" as one machine do the color codes not apply?
The only color code I found regarding isolated power is 517.106 (5) but as I have seen in the industry the only color that is common is yellow for 120v ac from an alternate source not controlled by a disconnect.
