What does IMC mean in conduit?
Intermediate Metal Conduit
Intermediate Metal Conduit (IMC) provides a lighter weight, lower-cost solution for jobs that require the same strength as galvanized rigid steel conduit.
Which conduit has thicker walls IMC or EMT?
As its name suggests, Intermediate Metal Conduit (IMC) has walls that are thinner than RMC, but thicker than EMT.
What is OD IMC?
IMC shall be hot galvanized steel O.D. with an organic corrosion resistant I.D. coating and shall be Listed to UL Safety Standard 1242 and manufactured in accordance with ANSI C80.
How deep should IMC conduit be?
IMC Conduits. Intermediate Metal Conduit when installed underground shall have a burial depth of min. 6″. NEC 300-5.
What is the minimum size of IMC?
Lighter and lower cost metal conduits.
| Trade Size | Average Outside Diameter | |
|---|---|---|
| (in) | (mm) | (in) |
| 2 | 53 | 2.36 |
| 2 1/2 | 63 | 2.857 |
| 3 | 78 | 3.476 |
Is IMC The same as EMT?
IMC vs. EMT is never threaded and is not designed for strong connections like IMC and RMC. In residential wiring, IMC is usually limited to service entrance assemblies and exposed runs to and from exterior service panels. Otherwise, EMT is the standard for household installations.
Is IMC conduit bendable?
Allied IMC is resistant to impact and is easy to cut, bend and join for smooth, continuous raceways.
Is EMT and IMC the same?
IMC has a thinner wall and weighs less than RMC. IMC can be used for the same applications as galvanized RMC. EMT is the lightest-weight steel conduit manufactured.
Can you run IMC underground?
It can be used indoors, outdoors, underground, and in both concealed and exposed applications. IMC has a thinner wall and weighs less than RMC. IMC can be used for the same applications as galvanized RMC.
Can you use IMC conduit underground?
In the 2017 NEC, a new section was added which requires threaded rigid metal conduit (RMC) or intermediate metal conduit (IMC) for underground wiring. For these methods, Table 300.5 requires a minimum cover depth of zero inches where installed under a building.
What is the difference between IMC and EMT conduit?
What is the minimum size IMC conduit allowed for electrical systems for building construction?
IMC shall be permitted to be installed in or under cinder fill where subject to permanent moisture where protected on all sides by a layer of noncinder concrete not less than 50 mm (2 in.) thick; where the conduit is not less than 450 mm (18 in.)
How strong is IMC conduit?
IMC is listed to UL ®safety standard 1242. UL 1242 IMC standard includes more performance-based requirements than the rigid steel conduit standard, including a beam strength test and a threaded conduit pullout test….IMC: Just the Facts.
| RMC | IMC | |
|---|---|---|
| Yield Strength | 35,000 | 55,000 |
Can you bend IMC?
Rigid and IMC conduit are the hardest raceways to bend because they have a much thicker and harder wall. ½” and ¾” rigid or IMC can be bent by hand using a hickey (or segment bender).
What is the advantage of IMC pipe?
In addition to its lighter weight, IMC offers some other advantages over RMC. It has a larger interior diameter than RMC, and the smoother interior of the pipe makes it easier to pull wires through the conduit. The National Electrical Code permits the use of IMC in all of the same applications RMC is approved for.
Where can IMC conduit be used?
It can be used indoors, outdoors, underground, and in both concealed and exposed applications. IMC has a thinner wall and weighs less than RMC. IMC can be used for the same applications as galvanized RMC. EMT is the lightest-weight steel conduit manufactured.
Can IMC conduit be in concrete?
IMC can be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences where protected by corrosion protection and judged suitable for the condition. Just like rigid steel conduit.
Is IMC conduit explosion proof?
Product Overview Female conduit union for 3/4 inch rigid/IMC conduit. Conduit union is steel. Conduit union is explosion-proof. Conduit unions are explosionproof and dust-ignitionproof.
Can you thread IMC conduit?
IMC and RMC elbows are threaded on both ends. Factory-made elbows in both standard and special radius are readily available for all sizes of RMC, IMC, and EMT.
Where can I use IMC conduit?
What does IMC mean on Conduit?
To specify, IMC include the following: Intermediate Metal Conduit (IMC) conduit and elbows shall be equal to that manufactured by Allied Tube & Conduit Corporation. IMC shall be hot galvanized steel O.D. with an organic corrosion resistant I.D. coating and shall be Listed to UL Safety Standard 1242 and manufactured in accordance with ANSI C80.6.
What is the length of IMC wire?
It is sold in 10-foot lengths, with or without threaded ends. Originally introduced by Allied Tube & Conduit Corporation, IMC is manufactured in accordance with UL (formerly Underwriters Laboratories) safety standard 1242 and ANSI C80.6. The National Electrical Code (NEC) includes a specific article detailing the proper use of IMC, Article 342 .
What is the standard size of conduit?
Common conduit sizes range from 1/2 inch to 4 inches in diameter. It is sold in 10-foot lengths, with or without threaded ends. Originally introduced by Allied Tube & Conduit Corporation, IMC is manufactured in accordance with UL (formerly Underwriters Laboratories) safety standard 1242 and ANSI C80.6.
What is IMC coating?
IMC shall be hot galvanized steel O.D. with an organic corrosion resistant I.D. coating and shall be Listed to UL Safety Standard 1242 and manufactured in accordance with ANSI C80.6. It shall be listed by a nationally recognized testing laboratory with follow-up service.