When is it necessary to use a conduit?

Using conduit is essential for protecting cables and conductors from physical damage or environmental exposure. Conduit serves as a robust barrier that shields electrical wiring from hazards such as moisture, chemicals, and mechanical impacts. This protection is particularly critical in environments where wiring may be subject to wear and tear, including outdoor settings, industrial locations, and areas with heavy foot or vehicular traffic.

Proper use of conduit also helps in organization and safety, as it prevents loose wires from creating tripping hazards or becoming damaged. Additionally, certain building codes may require the use of conduit in specific applications to meet safety standards. This means that it's not only a matter of best practices but also of compliance with regulations aimed at ensuring the safety and longevity of electrical installations.

Running wires underground, connecting circuits, or the idea that conduit is never necessary do not adequately address the broader protections that conduit provides in various installation scenarios.