Code Standards and Practices (CSAP) Level 2 Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Are listed metal outlet boxes allowed to be used with ENT?

Yes, without restrictions

No, they are prohibited

Listed metal outlet boxes are not allowed to be used with Electrical Nonmetallic Tubing (ENT) due to safety and compatibility issues. ENT is a type of non-conductive raceway made to carry electrical wiring, but it is designed for installation with non-metallic fittings and boxes. Using metal boxes with ENT can compromise the system's integrity and lead to potential hazards like short circuits, grounding issues, or improper sealing against moisture and other environmental factors.

The code specifies that nonmetallic raceways must be installed with appropriate nonmetallic fittings to maintain their intended use and safety features. Therefore, the prohibition of metal boxes ensures that the installation upholds the necessary electrical and mechanical properties required for safely managing electrical circuits. This is why the chosen answer is accurate.

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Only in residential areas

Only if properly insulated

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