When using electric power tools, what type of cord should be used?

When using electric power tools, it is essential to prioritize safety and reliability, which is why a 3-wire cord with ground is the appropriate choice. This type of cord includes three wires: one for the hot connection, one for the neutral, and a third wire specifically for grounding. The grounding wire helps to prevent shock hazards by providing a path for electrical current to safely dissipate into the ground in case of a fault, such as a short circuit or equipment malfunction.

Furthermore, the use of a 3-wire cord increases the safety of users by reducing the risk of electrical accidents. In contrast, the other options do not offer the same level of protection. A two-wire cord lacks the grounding feature, making it more susceptible to electrical shocks. A "wireless cord" is not a viable option because it does not exist; power tools may be battery-operated or corded, but "wireless cord" is a contradiction. A one-wire cord would also be insufficient, as it would not have the necessary components to ensure safe operation.

Using a 3-wire cord with ground is established best practice for electrical tools, ensuring safety and compliance with industry standards.