Intermediate Metal Conduit (IMC) – Article 342 of the 2023 National Electrical Code (NEC).docx

Daily Agenda

Today is:

TOPIC Today:

Intermediate Metal Conduit (IMC) – Article 342 of the 2023 National Electrical Code (NEC)

What should I know and be able to do by the end of class?

Objective: SWBAT

Define Intermediate Metal Conduit (IMC) and explain its physical characteristics.

Identify where IMC is permitted for use according to NEC Article 342.

Describe the installation requirements, including support, fittings, and corrosion protection.

Compare IMC with other conduit types such as Rigid Metal Conduit (RMC) and Electrical Metallic Tubing (EMT).

How am I learning it?

Activator:

Quick review of conduit types and their applications. Students will brainstorm where they've seen conduit used in real-world settings.

Activity:

Read excerpts from NEC Article 342.

Examine sample diagrams of IMC installations.

Group discussion: Is this installation compliant? Why or why not?

Hands-on: Identify conduit types and fittings in the lab.

Closure / Ticket out:.

What is the function of the neutral wire in this circuit?”

Students will write a brief explanation demonstrating their understanding of circuit balance and safety.

Homework:

Read NEC Article 342 in full.

Write a one-paragraph summary comparing IMC and RMC in terms of material, wall thickness, cost, and typical applications.

I will know I’ve got it when:

I can confidently explain what IMC is and where it’s allowed.

I can identify compliant and non-compliant installations.

I can distinguish IMC from other conduit types based on appearance and code requirements.

I can apply Article 342 to real-world scenarios and justify my reasoning.