In open wiring, which items are not enclosed in a conduit or sleeve?

• A. A single wire
• B. A wire group
• C. A wire bundle
• D. All of the above

Answer: (D)

Open wiring means conductors run in the open air without being enclosed in a conduit or sleeve. In this setup, you can have a single conductor, a group of conductors, or a bundle of wires, as long as they’re properly supported, insulated, and protected from abrasion and heat. All of these items would not be enclosed, which is why the answer is all of the above. When using open wiring, you still need to protect where the wires pass through or near structures, keep bundling from causing overheating, and secure the conductors to prevent movement.