What is nm-b wire used for?

NM-B cable is primarily used in residential wiring as branch circuits for outlets, switches, and other loads. NM-B cable may be run in air voids of masonry block or tile walls where such walls are not wet or damp locations. Voltage rating for NM-B cable is 600 volts.

Is nm-b the same as Romex?

Type NM stands for nonmetallic sheathed. The cable consists of a factory assembly of two or more insulated conductors within an overall nonmetallic jacket. Additionally, there is an equipment-grounding conductor that is bare or has green insulation.

What is the difference between Romex and NM wire?

NM wire is easier to unspool and straighten out because the PVC sheathing is pliable. It is easier to pull through holes in studs because of the smooth sheathing. In the case of Romex, a coating is added that makes the sheathing more slippery. NM cable is easier to cut with just a set of side-cutting pliers.

Can UFB wire be used indoors?

Types of Direct Burial Cables Type UF cable is usually gray and comes in rolls that look like standard non-metallic (NM) sheathed cable. While standard NM cable is rated only for dry, interior applications, UF cable can be used outdoors as well as indoors.

Can UFB be used indoors?

While standard NM cable is rated only for dry, interior applications, UF cable can be used outdoors as well as indoors. For example, if you want to install a cable between the house and an outdoor lamppost or to run power out to a garden shed or detached garage, UF cable is the standard choice.

What type of wire is inside Romex?

THHN wires
Romex® cables typically consist of multiple THHN wires bundled together and sheathed in polyvinyl chloride (PVC), making them suitable for indoor applications such as garages, interior walls and surface wiring above ground. Contractors often use these wires to connect electrical panels to appliances and lights.

What does the B stand for in NM-b wire?

Non-Metallic Sheathed Cable
Description. Type NM-B (Non-Metallic Sheathed Cable) is commonly used for residential wiring of luminaries, devices and appliances.

Which wire is good for house wiring?

If what you need the wire for is the wiring of your home, copper wires will be most appropriate for you. Copper is more conductive than aluminum but is also heavier and more expensive.

Can I use UF B wire indoors?

Can UF-B cable be exposed?

The use of UF cable on the exterior surface of buildings or structures is permitted by Sec. 225.10(18) and Sec. 334.10(3) of the NEC. If the cable is exposed to physical damage it must be protected in accordance with Sec.