NM-B wire consists of two or three insulated conductors that are combined with a bare ground wire in a plastic sheath. It's important to use the correct type of sheathed cable for wiring your outdoor lighting or other wiring projects. Does this Spark an idea?
NM-B
NM-B cable is designed for indoor use in dry locations only. This type of cable should not be used outdoors or in any areas that are exposed to the weather.
NM-C
NM-C sheathed cable may be used in damp locations, but not where it will be continuously wet. It also should not be buried or exposed to the weather. NM-C cable can be used anywhere NM-B is allowed.
UF
UF (underground feeder) cable looks similar to NM cable types, but the construction is somewhat different and it can be buried directly in the ground. UF cable rated for exposure to sunlight can be exposed directly to wet weather conditions and is a good choice for outdoor lighting circuits.
Tags: cable used, exposed weather, exposed weather NM-C, sheathed cable, weather NM-C
