Bx Wire For Attic

Bx contains one or more individually insulated hot conductors one individually insulated neutral conductor and a ground wire which may or may not be individually insulated.

Bx wire for attic. For a first floor installation you will be drilling up through the floorboard and then sole plate. Edwin greenfield and gus johnson developed basic armored cable in the early 1900s. Since insulation is combustible you must install face plates on all attic junction boxes to prevent contact between bare wires and insulation materials. Bx is also known as armor clad or flexible metal conduit cable.

Be gentle as you fish the cable through the hole since it is important not to tear the sheathing on the. The abbreviation bx has stuck to all metal jacketed cables for decades. I wanted to go with mc for extra protection wired through the attic and so far it was able to withstand much of abuse from my side during the installation. From down in the basement the bottom of the floorboards.

Solid cu bx ac al armored cable armorlite cable. I took it to be the cable romex was going to be exposed. I ve used this 12 2 mc cable to extend a power outlet into my walk in closet. The installation and construction requirements for type ac armored cable are located in article 320 of the nec.

Solid cu bx ac aluminum armored cable assortment. Bx s metal sheathing runs in a helix like or twisted manner around the wires. 5 can you just have electrical wires exposed with all the junctions in junction. Wire from the attic to the basement near the flue blue.

Add a comment 1 answer active oldest votes. From the attic or basement pull steadily on the fish tape while a helper feeds the cable into the wall opening. Junction box mounting locations there are two options for mounting boxes that are wholly contained within the attic. It may take some finessing as the tip of the fish tape blade passes through the drilled hole in the wall plate.

Many in the industry may still incorrectly refer to type ac as bx cable. Going under alternative names such as metallic sheathed cable type ac mc greenfield or armored cable bx cable is a collection of plastic coated insulated wires typically 14 or 12 gauge bundled together and protected by a ribbon like metal sheathing. It s not as flexible as romex nor it should be. Ed beal jul 19 17 at 19 08.

You can attach them to the joist s side surface called the face or to the. Bx is sheathed in a flexible metal spiral made either from aluminum or galvanized steel. Fish the cable. But we need to know the type of wire and the type of access to the attic scuttle hole stairs to provide a complete answer.

Southwire 10 2 x 125 ft. Understanding these temperature ratings and matching the intent of the building code should be attempted only by a licensed electrician on a case by case basis but the electricians i ve consulted agree that it s safe under normal conditions to bury older bx cable in cellulose insulation in an attic. Set your store to see local.