Electrical Metallic Tubing (EMT)

General
Providence EMT is manufactured from high-grade flat-rolled steel. Produced by the electric resistance welding process. The finished conduit is uniform in OD size, wall thickness, a defect free interior surface and smoothly welded seams. The 1/2" - 1-1/2" EMT are made from zinc coils. The 2" - 4" EMT are produced using an inline galvanizing process. The surface of all of them is thoroughly coated zinc, so that metal to metal contact and galvanic protection against corrosion are provided. Additionally, the exterior is protected by a clear zinc chromate coating. The good interior surface quality provides smooth continuous raceways for easy and fast wiring pulling. Its excellent ductility provides easy bending, cutting and joining to prevent waste of time and materials.

Providence’s EMT is produced in normal trade size from ½’’ to 4’’. EMT is produced in standard lengths of 10 feet (3.05 m). The quantity in primary bundle is standard bundle quantity.

Providence EMT is a UL listed product. Each pipe has been affixed a UL label and a manufacturer label including trade size and a bar code.

Application
Galvanized Steel Electrical Metallic Tubing, National Electrical Code (NEC)® 2002 Article 358, can be installed indoors or outdoors, exposed or concealed, in all kinds of atmospheric conditions, and in hazardous locations, when in accordance with NEC 502.4, 503.3 and 504.20 and providing it is not subject to severe physical damage during and after installation and is properly protected against corrosion.
Also, it provides mechanical protection for the conductors while reducing Electro-Magnetic Field (EMF) exposure and shielding against Electro- Magnetic Interference (EMI). Galvanized Steel Electrical Metallic Tubing is an approved equipment grounding conductor under the 2002 NEC® Section 250.118(4). The NEC® establishes the minimum requirements for the safe electrical installation. Because of the varied environments in which electrical equipment is installed, local amendments are often added. Always consult local codes prior to installation.

Specification
Providence Galvanized Steel EMT is manufactured in accordance with the latest edition of the following: American National Standards Institute (ANSI) – American National Standard for Steel Electrical Metallic Tubing, ANSI® C80.3. Underwriting Laboratories Standard for EMT-Steel, UL 797 National Electric Code® 2002-Article 358(1999 NEC Article 348) Federal Specification- WW-C_563 The above specification may still be referenced, however the federal government has canceled it and adopted the UL797 and ANSI C80.3 standard.

Additional information can be found in the Underwriters Laboratories Inc., General Information for Electrical Equipment Directory. The UL product category for EMT is FJMX.