In many parts of the country, the wiring method in unfinished basements is in the ceiling and EMT on the walls for receptacles and switches.

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In many parts of the country, the wiring method in unfinished basements is non-metallic-sheated cable in the ceiling and EMT on the walls for receptacles and switches.

This cable is flexible and is covered by plastic sheathing to protect the conductors that are insulated. In 1922, the company Romex created this type of cable. The use of this material became common in the 1960s when woven rayon was replaced by plastic. Architects started to use this Non-Metallic cable in American houses for electrical wiring. As it was hidden, it did not mess with the house decoration. Another great advantage of its popularity is that it is non-expensive.

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