What does IMC stand for 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.

What is the difference between EMT IMC and RMC?

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. Field workers typically find it easy to alter, reuse, or redirect EMT.

What is electrical IMC?

Intermediate metal conduit, or IMC, is a thinner, lighter-weight version of rigid metal conduit and is approved for use in all of the same applications as RMC. Because IMC is lighter and easier to work with than RMC, it is more common in new construction.

What is the advantage of IMC pipe?

Intermediate Metal Conduit (IMC)

This type of conduit is heavier than Electrical Metal Conduit (EMC) and lighter than Rigid Metal Conduit (RMC). This is a thicker metal conduit making it is a great choice for outdoor applications. The conduit pipe has to be supported at no longer than 10 feet of interval.

Is IMC stronger than RMC?

RMC is the thickest and heaviest type of steel conduit. IMC has a thinner wall and weighs about one third less than RMC. However, the lighter weight does not reduce its strength–IMC is considered as strong as RMC.

Is IMC thicker than EMT?

Examples are electrical metallic tubing (EMT), which is lightweight and easy to install; intermediate metallic conduit (IMC), which has a thicker, galvanized wall, making it suitable for outdoor applications; and galvanized rigid conduit (GRC), which is thickest and offers the most protection.

Is IMC corrosion resistant?

The interior of Allied IMC is coated with a highly corrosion-resistant lubricating finish for easier wire-pulling. No need to worry about damage to the conduit system even when pulling through multiple 90° bends.

Can IMC conduit be buried?

IMC (INTERMEDIATE METAL CONDUIT)

Intermediate Metal Conduit when installed underground shall have a burial depth of min. 6″. NEC 300-5. IMC may be used in hazardous locations.

Can you bend IMC conduit?

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).

Can EMT be used for an installation in wet locations?

EMT can be used in wet locations as long as the conduit is galvanized and you use all fittings that are identified for wet locations and protected from corrosion. EMT can be used in concrete as long as the fittings are identified for use.

What material is EMT?

Electrical metallic tubing (EMT) is made from coated steel or aluminum and is a more economical and thinner-walled option than other conduit. This conduit type doesn’t offer the same protection as rigid metal conduit but is lighter and can be paired with conduit fittings, eliminating the need for threading.

What is electrical EMT?

Steel conduit and electrical metallic tubing (EMT) refers to the steel-based durable enclosures that route individual electrical wiring conductors in a building or structure and protect the wires from impact, moisture, and chemical vapors.

Can I use EMT outdoors?

To directly answer your question: There is no height requirement for EMT. It can be used at any height on the outside of a house. EMT is identified for use in locations where exposed to physical damage but not ‘severe’ physical damage. The difference is a matter for interpretation.

Can you use EMT in concrete?

A. Electrical metallic tubing (EMT), elbows, couplings, and fittings 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 [358.10(B)].

Can you run EMT on the roof?

EMT is tubing rather than conduit; therefore, the rooftop requirements do not apply by the literal interpretation. Various other wiring methods which may be installed on rooftops also do not have this requirement.

Can you bury EMT in the ground?

Code Change Summary: Electrical metallic tubing (EMT) is now permitted to be used underground where conductors are subject to physical damage.

Does EMT pipe rust?

Typical EMT Type conduit will resist rust for a few years. It is however inevitable that it will rust. The most likely place for rust to start will be at the ends where it has been cut or along the surface where the finish has been scratched.

Is EMT galvanized?

Electrical Metallic Tubing (EMT) unthreaded steel conduit features hot-galvanized construction to resist corrosion. It also offers easy bending, cutting, and joining during installation.

How deep should an EMT be buried?

The generally applicable depth is 12 inches, or you can reduce it to 6 inches if you secure the cables with 2 inches of accuracy. Below an entry path, it is feasible to require only 12 inches of burial depth. Conduits require for installation in 2 inches of solid rock with accuracy.

Can PVC conduit be used underground?

PVC conduit is often used in underground and wet location applications where electrical cables need to be protected. Because it’s UV tested and rated, it can be used in locations where it will be exposed to UV rays.

What is code for underground conduit?

Buried wiring runs that transition from underground to above ground must be protected in conduit from the required cover depth or 18 inches to its termination point above ground, or at least 8 feet above grade.

Can you bury Romex without conduit?

According to the National Electric Code, regular romex wire must be housed in conduit if run outdoors. However, UF rated wire can be run without conduit.