Can non-laboratory certified equipment be used in installations?

The correct choice highlights that non-laboratory certified equipment can be used in installations provided that it was legal at the time of installation. This means that if the equipment complied with the codes and regulations applicable when it was installed, it can be deemed acceptable. This situation is particularly relevant in contexts where older equipment may not have contemporary laboratory certification but was in compliance with fire alarm safety standards at that time.

However, it is crucial to note that regulations can change over time, and what was acceptable in the past may not be permissible under current guidelines. Hence, maintaining awareness of evolving standards is necessary for ensuring ongoing compliance in fire alarm installations.

The focus on historical context is significant in the fire safety industry, where legacy systems might still be operational despite newer standards requiring laboratory certification for newer technology. This allows for a practical approach to maintaining older systems while transitioning toward more modern, certified solutions as needed.