What should be emphasized for the installation of ceiling-supported luminaires?

For the installation of ceiling-supported luminaires, it is crucial that they are securely fastened and can support their weight independently. This requirement ensures safety by preventing the luminaires from falling, which could cause injury or damage. Adequate support is essential in various environments, especially where there might be vibrations or movements, ensuring the fixtures remain stable and intact over time.

The emphasis on secure fastening not only pertains to the electrical code requirements but also addresses practical considerations such as the weight of lamps, the stresses they may experience, and the longevity of the installation. This focus on structural integrity is a fundamental principle within the National Electrical Code, as it prioritizes user safety and the reliability of electrical systems.

While ease of removal, compatibility with different bulb types, and adjustability can all be beneficial features, they do not supersede the fundamental safety concern that hinges on proper support and secure installation of luminaires.