(1)
Except as required by Articles 3.2.7.6. and 3.2.7.7., an emergency electrical power supply system shall be installed in conformance with CSA C282, “Emergency electrical power supply for buildings.” (See Sentence 3.2.7.8.(1) for emergency electrical power supply for voice communication systems.)
(2)
Every emergency power supply shall be equipped with an emergency audible and visual trouble indication.