Types Of Bx Cable

Some types may work for several cables types others may be prohibited.

Types of bx cable.

Bx is the oldest form. Bx s metal sheathing runs in a helix like or twisted manner around the wires. Get free shipping on qualified bx ac cable wire or buy online pick up in store today in the electrical department. A cable assembly is the composition of one or more electrical cables and their corresponding connectors.

The abbreviation bx has stuck to all metal jacketed cables for decades. Type nm cable as it is often referred to is sold in pre cut lengths like 50 100 250 and 1 000 spools. What are bx cable and wire. The installation and construction requirements for type ac armored cable are located in article 320 of the nec.

Many in the industry may still incorrectly refer to type ac as bx cable. They are all wrapped in an outer protective plastic sheath. Ac ac means armored cable. Make sure you have the proper connectors for the selected type of cable.

There are three basic types of metal covered cable. To be soldered onto a printed circuit board with a. Ensure that the local authorities permit the use of bx cable in your application. While this cable provided the protections common in armored cable it had a tendency to leak and its grounding system was poor.

Edwin greenfield and gus johnson developed basic armored cable in the early 1900s. So bx is defined as ac cable armored clad and mc is defined as metal clad cable. There are two different types of cables that are commonly used. The bx version became the one that eventually was produced and hence the name bx became the common name.

Like nm cable uf cable comes in a variety of gauges to meet all electrical code requirements and is labeled with the same information carried on nm cable plus the designation uf. Bx became the registered trade name of ac cable distributed by general electric who had acquired sprague electric. This cable type went into production during world war ii and saw heavy use for several years. All are referred to as armored cable.

A cable assembly is not necessarily suitable for connecting two devices but can be a partial product e g. 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. There are many types of armored cables not all of them may be acceptable for use in all circumstances.