Author: STI Conduit Committee Members

Steel Electrical Conduit Is Not Tested or Listed for Non-Electrical Applications

Because steel electrical conduit is readily available at local home improvement stores, it is tempting to use it for non-electrical projects, such as mechanical or structural applications. However, it is important to note that steel electrical conduit products are not evaluated or factory-tested for non-electrical applications. Furthermore, if structural steel is required for your project,[…]

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Simple Guidelines for Painting Steel EMT or Conduit

Want to paint your steel EMT or conduit, but don’t know whether painting complies with the National Electrical Code® (NEC®)? We are often asked this question. The NEC does not prohibit the painting of steel EMT or conduit, but it is important to maintain grounding continuity. The painting should be done after installation to maintain[…]

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Prepare for Tomorrow by Choosing Steel Conduit Today

While steel conduit may cost more upfront than other electrical system material options, its benefits pay off in the long run. Steel conduit provides the strongest circuit protection and allows for change — ensuring that your facility is prepared for whatever the future might hold. Specifically, steel conduit easily accommodates rework during construction and makes[…]

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The Inside Story of Steel Conduit and Tubing

Requirements for coatings on steel rigid metal conduit (RMC), intermediate metal conduit (IMC) and electrical metallic tubing (EMT) are included in the UL product standards as well as in the ANSI C80 standards for conduit and EMT. The National Electrical Code requires that these products be listed (see NEC sections 344.6, 342.6 and 358.6, respectively).[…]

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July Article Roundup

  The STI Conduit Committee is dedicated to staying up to date on industry topics and trends so we can keep you informed. Below are a few recent articles from top industry publications that we’d like to share. Conduit bending tools today don’t look much different than the early models, but manufacturers have added significant[…]

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Electrical Rigid Metal Conduit: Steel (RMC) for Directional Boring

Directional Boring (DB), also called Horizontal Directional Drilling (HDD) is a trenchless method for installing electrical conduit for the protection of cable and wire circuits. It is used to install conduit beneath streets, highways, and railroad railbeds, as well as for other applications to accommodate aesthetic or environmental considerations. DB trenchless technology is gaining popularity[…]

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IMC Facts

  The questions and answers below are based on the current edition of the NEC®.  However, local codes can differ, and your authority having jurisdiction (AHJ) may have opinions that also differ. It is always important to verify your planned installation with the local AHJ. We’ve been asked several questions about the use of intermediate[…]

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Does the Conduit Industry Need Specific Color Standards for Colored Conduit Use?

February 6, 2015 / 0 comments / in Other / by:

Welcome to the age of color! Colored conduit is rapidly becoming a normal part of building planning and construction. Some facility managers have already recognized the benefits of using colored conduit and have developed their own standards for use in new construction of smart buildings and government buildings, as well as schools and universities. Currently[…]

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What is Corrosion?

December 5, 2014 / 0 comments / in Corrosion / by:

The 1965 edition of the National Electrical Code® (NEC®) added the requirement that “raceways be suitable for the corrosive environment to which it is exposed.” Section 300.6, Protection Against Corrosion and Deterioration, requires that, “Raceways, cable trays, cable bus, auxiliary gutters, cable armor, boxes, cable sheathing, cabinets, elbows, couplings, fittings, supports and support hardware shall[…]

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