Which NEC article covers wiring methods?
Article 300 of the NEC outlines general requirements for wiring methods including protection and installation practices.
Which material is commonly used for nonmetallic sheathed cable (Type NM)?
Type NM cable typically has a PVC outer jacket and is used in residential wiring applications.
What is the main purpose of conduit in wiring installations?
Conduits protect electrical wiring from physical damage and environmental exposure.
Which type of conduit is non-metallic and suitable for wet locations?
PVC conduit is corrosion-resistant and approved for use in underground or wet environments.
Which conductor material is most commonly used in residential wiring?
Copper is preferred due to its superior conductivity and flexibility in residential installations.
What does EMT stand for in electrical wiring?
EMT stands for Electrical Metallic Tubing, a type of thin-wall conduit used in commercial and residential settings.
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Which cable type is designed for outdoor and direct burial use?
UF (Underground Feeder) cable is designed with a solid thermoplastic sheath for use underground or in damp environments.
What does the color coding on electrical wires typically indicate?
Color coding helps identify the function of the wire: black for hot, white for neutral, green or bare for ground.
Which NEC article contains requirements for conductors for general wiring?
Article 310 provides specifications for the types, sizes, and insulation of conductors used in general wiring.