Abstract： AS 1670.6:1997 pdf download.Fire detection, warning, control and intercom systems-System design, installation and commissioning Part 6: Smoke alarms. 2.1.2 Muhi-level Where the dwelling is multi-level, at least one smoke alarm shall he loca...

AS 1670.6:1997 pdf download.Fire detection, warning, control and intercom systems-System design, installation and commissioning

Part 6: Smoke alarms.

2.1.2 Muhi-level Where the dwelling is multi-level, at least one smoke alarm shall he located on each level such that the egress

path from each level is protected. All smoke alarms shall be interconnected.

2.1.3 Sloping ceilings Smoke alarms in rooms with ceiling slopes greater than I in 8 shall be located at the high side of the ceiling.

2.1.4 Dead air spaces Smoke alarms shall not be located in the following areas:

(a) Within 30() mm of a light fitting.

(b) In dead air spaces as shown in Figure 2.2.

2.1.5 .loists and beams On ceilings with exposed joists or beams with a depth not exceeding 300 mm. smoke alarms may be located on the underside of the joist or beam.

2.1.6 Stairwells Smoke alarms installed in stairwells shall he located to ensure thai smoke rising in the stairwell is not

prevented from reaching the smoke alarm by a door or other obstruction.

2.1.7 Forced air circulation In areas provided with airconditioning or forced air ventilation, smoke alarms shall not be installed closer than 400 mm to any supply air opening. Smoke alarm locations shall be chosen to take account of the airflow towards return air openings. Where ceiling fans are installed smoke alarms shall not be installed within 4(N) mm ot the blades of the fan.

2.1.8 Enironrnental conditions Smoke alarms shall not be located in areas where the environmental conditions exceed the

manuicturer’s operating parameters.

2.2 ALA kNI SIGNALS

2.2.1 Aural alarm signals Smoke alarms shall be installed to ensure that the aural signal is clearly audible in all bedrooms of the dwelling over the background noise normally encountered, with all intervening doors closed. For audible signals intended to arouse sleeping occupants, the sound pressure level of the signals shall be not less than 75 dBA when measured at the sleeping position.

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