Installation of emergency electrical power supply systems for emergency equipment required by Part 3 for health care facilities.

This applies to emergency electrical power supply systems, for buildings described in Sentence 1.3.3.2.(1) of Division A, used to supply emergency power to:

• emergency lighting systems, as required by Articles 3.2.7.3. and 3.2.7.4.,
• fire alarm systems, as required by Article 3.2.7.8.,
• voice communication systems in high buildings, as required by Sentence 3.2.7.8.(1),
• elevators in buildings more than 36 m high, as required by Clause 3.2.7.9.(1)(a),
• water supply for firefighting, as required by Clause 3.2.7.9.(1)(b), and
• fans and other electrical equipment that are installed to maintain air quality and venting in high buildings defined in Subsection 3.2.6., as required by Clauses 3.2.7.9.(1)(c) and (d).

Exceptions: 

To limit the probability that emergency electrical power supply systems will not meet proper standards, which could lead to emergency electrical power supply systems not performing in the way intended when there is a loss of normal power in a fire situation, which could lead to the inability of the emergency electrical power supply systems to supply fire protection systems, which could lead to the inability of:

• sprinkler, standpipe and hose systems, and other fire suppression systems [that rely on booster or fire pumps, or electrical power] to control or suppress a fire, which could lead to the spread of fire, and
• smoke management systems to control smoke conditions as originally intended, which could lead to the migration of smoke from one floor area or fire compartment to other parts of the building.

This is to limit the probability of damage to the building or facility.