ICC Residential Electrical Inspectors Practice Exam

Conductors and equipment permitted by the code must be acceptable only if they are?

1. Outdated

2. Reused

3. Listed

4. Not bolted

The correct answer is: Listed

The correct answer highlights the importance of using equipment and conductors that are "listed," which means they have been tested and certified by an accredited organization to ensure they meet specific safety and performance standards. This listing process ensures that the products are safe for use in residential electrical installations and comply with the national or local electrical codes. When conductors and equipment are listed, it provides assurance to inspectors, electricians, and homeowners that the products have undergone rigorous testing for quality and safety. Using listed materials minimizes the risk of electrical hazards, such as fires or electrical failures, which can occur when substandard or untested products are used. In contrast, outdated or reused materials might not meet current safety standards or code requirements, potentially compromising the integrity of the electrical system. Additionally, descriptions like "not bolted" do not pertain to the acceptance criteria for electrical conductors and equipment according to the code. The emphasis on listing as a requirement reflects best practices in ensuring safe and reliable electrical installations.