Questions regarding control cables
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What is the difference between control cables with and without yellow/green dual-colored insulated core wires? What is the purpose of the yellow/green dual-colored insulated core wires, and how should they be connected during wiring?
The yellow-green dual-colored wire should be the ground wire
The yellow-green dual-colored wire is the leakage wire; use it as a ground wire: grounding it is sufficient
Yellow-green colored wires are used in electrical systems for grounding equipment and systems; it seems that such wires are not present in cables
The one with yellow-green color is likely a wire used in electrical applications for grounding; it is a power cable, not a control cable
Someone upstairs answered the original poster’s question: the control cable does not have this wire; grounding is achieved by directly connecting to the shield.
The person upstairs has answered. Yellow-green ground wire. The overall grounding requirement for some is green. The sub-grounding is yellow-green. This allows for the distinction between main grounding and branch grounding