Final answer:
Type NM cable is prohibited in wet locations as its components are not designed to withstand moisture, which could pose safety risks. It is important to always adhere to the National Electrical Code and local building codes when determining appropriate use.
Step-by-step explanation:
The type NM cable, also known as non-metallic sheathed cable, is commonly used in residential electrical wiring. According to the National Electrical Code (NEC), which sets the standards for electrical safety, there are certain locations where using Type NM cable is prohibited. Specifically, Type NM cable is not allowed to be run in wet locations. This is because the insulation and other components of Type NM cable are not designed to resist moisture, leading to potential hazards such as short circuits or electrical fires.
Type NM cable is commonly used in dry locations, can be concealed in walls and ceilings, and is allowed to be exposed on the surface of walls, provided it's not prone to physical damage and installations comply with the NEC regulations. Remember that the use of Type NM cable must always adhere to the requirements spelled out in the latest edition of the NEC and any local building codes.