To exempt certain fire emergency systems from the application of Sentence 7.1.1.2.(1), which would otherwise require conformance with Sections 7.2. and 7.3., on the basis that such systems will be tested to ensure that they operate as intended.
This is to limit the probability that deficiencies in the fire emergency systems will go unnoticed, which could lead to the systems not operating as originally intended in a fire situation, which could lead to harm to persons, including emergency responders.