Which type is designated as Electrical Metallic Tubing?

Electrical Metallic Tubing is specifically designated by the abbreviation EMT. This type of conduit is made of thin-walled metal and is used to protect and route electrical wiring in various building applications. EMT is known for its lightweight, corrosion-resistant properties and ease of installation, making it a popular choice among electricians for various applications, including both residential and commercial settings.

EMT can be easily bent and cut, allowing for flexibility in installation, and it provides a strong physical protection for wires. Moreover, it can be used indoors and outdoors, provided that it is adequately protected from moisture. The application of EMT is governed by the National Electrical Code (NEC), which outlines requirements for its use, installation, and grounding.

Other types listed, such as LFNC (Liquidtight Flexible Nonmetallic Conduit), NUCC (Nonmetallic Underground Conduit), and RTRC (Rigid Thermoplastic Conduit) serve different purposes and are constructed from different materials, thus leading to confusion regarding their application in electrical installations.