What type of cable is typically protected in electrical metallic tubing (EMT) for workshop use?

Prepare for the Residential Electrical Exam. Study with flashcards and multiple choice questions, each question includes hints and explanations. Get exam ready!

In a workshop environment, the use of Type NM (Non-Metallic Sheathed) cable is typically acceptable; however, it is generally not the most suitable choice for installation in areas where it may be exposed to moisture, physical damage, or abrasion, such as in a workshop. Therefore, the requirement for additional protection, such as through Electrical Metallic Tubing (EMT), can elevate the safety and durability of the installation.

When Type NM cable is installed within EMT, it gains an extra layer of protection from physical threats. The EMT acts as a shield against impact, moisture, and potential corrosive elements, which could compromise the integrity of the non-metallic sheath. This combination ensures that the cable remains insulated and safeguarded, maintaining the safety standards expected in a workshop environment.

While Type THHN cable and Type MC (Metal Clad) cable are also used in various electrical applications, neither of these options would specifically fit the context of protection in EMT as well as Type NM cable combined with EMT. Type THHN is often used in conduit systems but typically not in non-metallic sheathed wiring, while Type MC is already armored and doesn’t require EMT for protection. Therefore, using Type NM cable protected in EMT is a practical and compliant

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy