What is the primary use of a fish tape in electrical work?

The primary use of a fish tape in electrical work is to pull wire or rope through conduit. Fish tape is a long, flexible tool, often made of steel or fiberglass, designed specifically for running wires through walls, ceilings, and other enclosed spaces. When working with electrical systems, it is common to run multiple wires through conduits, especially in complex installations where distances can be extensive and bends in the conduit are present.

Using a fish tape allows electricians to navigate through these pathways efficiently. The end of the fish tape can be attached to the wire or rope, making it easier to pull them through without damaging the wires or the conduit itself. This tool significantly reduces the time and effort required when installing wiring and helps maintain the integrity of the installation.

The other options typically involve tasks that require different tools or equipment. Cutting wire, for instance, is usually done with wire cutters or shears, while measuring voltage involves a multimeter. Testing insulation resistance is performed using a megohmmeter or insulation tester. Therefore, these alternatives are not suitable for the specific function of a fish tape.