Electrical Metallic Tubing
( E M T )
 
  Galvanized Rigid Steel
Conduit ( R S C )
 
  Intermediate Metal
Conduit ( I M C )
 
  Fittings & Couplings
( F C )
   


*General

(ERSC) ANSI, C80.1- American National Standard for Electrical Rigid Steel Conduit; UL 6- UL Standard for Electrical Rigid Metal Conduit; NEC 2002 Article 344 (1999 NEC article 346); WW-C 581 (Class 1Type A)-Federal Specification
The above specs may still be referenced; however the federal government has canceled it and has adopted the UL 6 standards.

*Application

Galvanized Rigid Steel Conduit can be installed indoors or outdoors, exposed or concealed, in all kinds of atmospheric conditions, and in hazardous locations, when in accordance with NEC® 2002 Article 344. Also, it provides mechanical protection for the conductors while reducing Electro-Magnetic Field (EMF) exposure and shielding against Electro-Magnetic Interference (EMI).

Galvanized Steel Rigid Conduit is an approved equipment grounding conductor under the 2002 NEC® Section 250.118. 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 it any installation.


Our RSC is manufactured from high-strength steel. Produced by the electric resistance welding process. The finished conduit is uniform in OD size, wall thickness, rigidity, ductility, a defect free interior surface and smoothly welded seams. RSC is hot-dipped galvanized inside and outside, so that metal to metal contact and galvanic protection against corrosion are provided. 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. RSC has a coupling. Threads on the uncoupled end are covered by industry color-coded thread protectors which protect the threads, keep them clean and sharp, and aid in trade size recognition. RSC is available in trade sizes 1/2 through 6. Thread protectors for trade sizes 1, 2, 3, 4, 5 and 6 are color-coded blue, trade sizes 1/2, 1 1/2, 2 1/2, 3 1/2 are black, and trade sizes 3/4 and 1-1/4 are red. The nominal finished length of RSC with couplings is 10 feet. Twenty foot lengths are available in some trade sizes.

* Specification
 
RSC should be mild steel, manufactured, hot-dipped galvanized, and produced to the following specifications:

Galvanized Rigid Steel Conduit (RSC) - Weights and Dimensions

All sizes furnished in 10'lengths with both ends threaded.
Length = ¡À1/4''(¡À6.35mm) without coupling. A coupling is screwed on one end and a thread protector is on the other.
Outside Diameter:
For trade sizes through 2: ¡À0.015 (¡À0.38mm)
For trade sizes 2-1/2 through 4: ¡À0.025 (¡À0.64mm)
For trade sizes 5 through 6: ¡À0.1