Oklahoma Electrical Practice Exam

How many steps is required to have wall switch control for lighting receptacles in indoor residential unit stairways?

1. Four or more steps

2. Five or more steps

3. Six or more steps

4. Seven or more steps

The correct answer is: Six or more steps

In residential settings, the National Electrical Code (NEC) mandates specific requirements for wall switch control of lighting in stairways to ensure safety and functionality. According to Article 210.70 of the NEC, when providing wall switch control for lighting at stairways, at least one switch must be located at the top of the stairs and one at the bottom. In situations where there are six or more steps, additional requirements may apply, including the need for a light at each level of the stairway, which further emphasizes the safety measures required for proper illumination in these areas. This ensures that users have adequate light when navigating the stairs, reducing the risk of accidents and falls. In this context, having six or more steps in the stairway necessitates compliance with these enhanced requirements, confirming that the correct choice reflects the appropriate safety and design standards established in the NEC.