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3.2.7.5.(1)
ApplicationIntent
OS1OP1OP3OS3
ObjectiveOP3 Protection of Adjacent Buildings from Fire
Attribution
[F81,F06,F02-OP3.1]
Application
Application 1: 
Installation of emergency electrical power systems, in buildings described in Sentence 1.3.3.2.(1) of Division A, used to supply emergency power to:
  • emergency lighting systems, as required in Articles 3.2.7.3. and 3.2.7.4.,
  • fire alarm systems, as required in Article 3.2.7.8.,
  • voice communication systems in high buildings, as required in Sentence 3.2.7.8.(1),
  • elevators in buildings more than 36 m high, as required in Clause 3.2.7.9.(1)(a),
  • water supply for firefighting, as required in 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 in Clauses 3.2.7.9.(1)(c) and (d).
Exceptions: 
except as stated in:
  • Article 3.2.7.6., which applies to hospitals and nursing homes, and
  • Article 3.2.7.7., which applies to gas fuel-fired engines or turbines for an emergency electric power supply dependent on a fuel supply from outside the building.
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Intent
Intent 1: 
To limit the probability that emergency electrical power systems will not meet proper standards, which could lead to emergency electrical power systems not performing as intended when there is a loss of normal power in a fire situation, which could lead to the inability of the emergency electrical power systems to supply fire protection systems, which could lead to the inability of water supply and fire protection 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 from the building to an adjacent building, which could lead to damage to adjacent buildings or facilities.
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