The wire conductor colors in a non metallic sheathed cable are black, red, white, and a bare copper.
The colours will be, black, white and a bare copper ground.
NEC, Article 336 covers the use, installation and construction specifications for nonmetallic-sheathed cable. Nonmetallic-sheathed cable may be used for either exposed or concealed wiring.
Yes
Electrical Sheathing is various forms of metallic or non-metallic covering over conductors. Nonmetallic-Sheathed Cable is what is known by the brand name Romex.
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no
THHN is a heat resistant thermoplastic insulated conductor, usually a single conductor. Romex is a brand name for a nonmetallic sheathed cable, it has multiple conductors inside, the insulated ones are insulated with THHN insulation.
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Non metallic sheathed cable is used as conductors in home wiring.See related links below.
The most commonly used wiring method for residential use is called nonmetallic sheathed cable. Other types of wiring methods are knob and tube, as well as service entrance cable.