Does Wire In An Attic Have To Be In Conduit

The most common type of cable used in home wiring is non metallic nm or romex cable.

Does wire in an attic have to be in conduit.

The attic wiring should be protected and secured to ceiling joists or other wood structural supports. The types of wire most commonly installed inside of conduit are thhn and thwn. Conduit also protects your wires from exposed surfaces such as rough bricks in a basement. Code requires that romex be installed in a conduit.

Thhn thwn wires are individual insulated and color coded wires. While nm cable can be run inside conduit this is seldom done. While the national electrical code does not expressly forbid inserting nm cable inside conduit in practice it is very difficult to do so and very few professional electricians will do such an installation. It will be easier to repair wires if there is a short in the line.

Using conduits will ensure that your wires are kept together. No you do not need conduit also there is a wire staple any hardware should have them your better off running it as is when you put wire in conduit it creates heat not good. All conductors are required to be insulated per section 310 2 a however the exception states bare conductors are allowed where permitted by other sections of the code such as 250 119 which states egc can be bare covered or insulated. I m building a new home outside the city limits in liberty county in texas my electrician ran the main power feed wire from the meter through the exterior wall up into the attic and down into the breaker panel without any conduit.

Yes this should be corrected and it would be good to have the wiring and all the circuit connections inspected as well. Bare ground in conduit.