| 9.10.19. |
Smoke Alarms |
| 9.10.19.1. |
Required Smoke Alarms
- Except as permitted by Article 9.10.19.8., smoke alarms conforming to CAN/ULC-S531, "Smoke Alarms," shall be installed in
- each dwelling unit,
- each sleeping room not within a dwelling unit, and
- ancillary spaces and common spaces not in dwelling units in a house with a secondary suite.
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| 9.10.19.2. |
Sound Patterns of Smoke Alarms
- The sound patterns of smoke alarms shall
- meet the temporal patterns of alarm signals (see Note A-3.2.4.18.(2)), or
- be a combination of temporal pattern and voice relay.
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| 9.10.19.3. |
Location of Smoke Alarms
- Within dwelling units, sufficient smoke alarms shall be installed so that
- there is at least one smoke alarm installed on each storey, including basements, and
- on any storey of a dwelling unit containing sleeping rooms, a smoke alarm is installed
- in each sleeping room, and
- in a location between the sleeping rooms and the remainder of the storey, and if the sleeping rooms are served by a hallway, the smoke alarm shall be located in the hallway. (See Note A-9.10.19.3.(1).)
- A smoke alarm required by Sentence (1) shall be installed in conformance with CAN/ULC-S553, "Installation of Smoke Alarms."
- Smoke alarms required in Article 9.10.19.1. and Sentence (1) shall be installed on or near the ceiling.
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| 9.10.19.4. |
Power Supply
- Except as provided in Sentences (2) and (3), smoke alarms described in Sentence 9.10.19.1.(1) shall
- be installed with permanent connections to an electrical circuit (see Note A-3.2.4.20.(7)(a)),
- have no disconnect switch between the overcurrent device and the smoke alarm, and
- in case the regular power supply to the smoke alarm is interrupted, be provided with a battery as an alternative power source that can continue to provide power to the smoke alarm for a period of no less than 7 days in the normal condition, followed by 4 minutes of alarm.
- Where the building is not supplied with electrical power, smoke alarms are permitted to be battery-operated.
- Suites of residential occupancy are permitted to be equipped with smoke detectors in lieu of smoke alarms, provided the smoke detectors
- are capable of independently sounding audible signals within the individual suites,
- except as permitted in Sentence (4), are installed in conformance with CAN/ULC-S524, "Installation of Fire Alarm Systems," and
- form part of the fire alarm system. (See Note A-3.2.4.20.(8).)
- Smoke detectors permitted to be installed in lieu of smoke alarms as stated in Sentence (3) are permitted to sound localized alarms within individual suites, and need not sound an alarm throughout the rest of the building.
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| 9.10.19.5. |
Interconnection of Smoke Alarms
- Where more than one smoke alarm is required in a dwelling unit, the smoke alarms shall be wired so that the activation of one alarm will cause all alarms within the dwelling unit to sound.
- Smoke alarms in a house with a secondary suite shall be wirelessly interconnected or interconnected by hard-wiring so that the activation of any one smoke alarm causes all smoke alarms within the house with a secondary suite to sound. (See Note A-9.10.19.5.(2).)
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| 9.10.19.6. |
Silencing of Smoke Alarms
- Except as permitted in Sentence (2), a manually operated device shall be incorporated within the circuitry of a smoke alarm installed in a dwelling unit so that the signal emitted by the smoke alarm can be silenced for a period of not more than 10 min, after which the smoke alarm will reset and sound again if the level of smoke in the vicinity is sufficient to re-actuate it.
- Suites of residential occupancy equipped with smoke detectors installed to CAN/ULC-S524, "Installation of Fire Alarm Systems," which are part of the fire alarm system in lieu of smoke alarms as permitted in Sentence 9.10.19.4.(3), need not incorporate the manually operated device required in Sentence (1).
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| 9.10.19.7. |
Instructions for Maintenance and Care
- Where instructions are necessary to describe the maintenance and care required for smoke alarms to ensure continuing satisfactory performance, they shall be posted in a location where they will be readily available to the occupants for reference.
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| 9.10.19.8. |
Residential Fire Warning Systems
- Except where a fire alarm system is installed or required in a building, smoke detectors forming part of a residential fire warning system installed in conformance with CAN/ULC-S540, "Residential Fire and Life Safety Warning Systems: Installation, Inspection, Testing and Maintenance," are permitted to be installed in lieu of all smoke alarms required by Articles 9.10.19.1. and 9.10.19.3., provided that the fire warning system
- is capable of sounding audible signals as stated in Articles 9.10.19.2. and 9.10.19.5.,
- is powered as stated in Article 9.10.19.4., and
- is equipped with a silencing device as stated in Article 9.10.19.6.
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