Fire Alarms
Fire & Safety Ltd |
Fire Alarms
 Santana Integrator - Integrated Building Protection System
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Homesafe install Fire Alarms to NZS 4512:2003
We are pleased to be able to provide a quotation for any size system
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FAQ
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What are the different types of Fire Alarm?
| 2 |
Single or Multizone. |
Manual system |
Automatic signalling |
| 3 |
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Manual & Heat |
Automatic signalling |
| 3b |
(b means firecells have a single escape route. Type 4 or 6 is required) |
| 4 |
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Manual & Smoke |
Automatic signalling |
| 4e |
(e allows optional use of Type 5) |
| 5 |
Local Alarm |
Smoke Detection |
No Signalling |
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(Heat detection in fire cells to alert all occupants) |
| 6 |
Sprinkler plus |
Type 2 Fire Alarm |
Automatic signalling |
| 7 |
Sprinkler plus |
Type 4 Fire Alarm |
Automatic signalling |
| 7e |
Sprinkler plus |
Type 5 Fire Alarm |
No Signalling |
| f |
Suffix f means No Signalling as long as a telephone is available to dial 111 |
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What Legislation may I need to consider may be involved?
- Building Act
- NZ Building Code
- Electricity Regulations
- Radio communications Regulations
- Fire Service Act
- Fire Safety and Evacuation of Building Regs.
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Zones
Buildings need to be split into zones. An indication of the zone activation needs to be indicated on the panel. All alerting devices on a zone shall operate together except as permitted in a Type 5 system.
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Ancillary Services
On activation of the Control Panel it may initiate (Not Power) through relays.
- Ventilation systems
- Emergency lighting
- Lift controls
Sprinkler pressure and flow switches must not generate a Fire Alarm (signal only)
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Fire Alarm
Operation of 1 or more detectors or call points shall result in a Fire Alarm by;
- Alerting devices in building
- Indication on the panel and any indicating unit and repeater.
- Signal (When required to be connected)
- a,b and c above are optional where detectors are fitted for local alarm
- Audible alarms are to operate till manually reset.
- Alarms using voice systems are to override any other function when in alarm.
- Conventional smoke detectors need to operate twice before an alarm signal is sent
(analogue algorithms override this issue).
- Ancillary alarms that are indicative of a fire such as a sprinkler head are permitted to activate the alarm.
- Signalling shall latch
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Silencing
- Alarm shall continue until system restored or silence switch operated.
- Outside switch key operated and marked "Silence Alarms. Brigade Use Only". Operated detectors are isolated only.
- Ancillary equipment such as a sprinkler control must have the same switch fitted./li>
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Manual Reset Facilities
Only possible when activated devices have been reset or cleared. This may require replacement parts or other devices such as switches within the panel.
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Evacuation & Alert Switches
A key operated switch Market "Evacuation" on the panel is to be used to isolate the signalling and to allow testing and trial evacuations.
A key marked "Alert" is used for testing staged evacuation.
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Defect Warning
When the following occurs;
- When battery level is below the manufacturers capacity.
- Open or Short circuit on a zone or low/high impedance that prevents the detection from operating the zone.
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Indicators
- Suitable LED's, LCD or other system.
- If incandescent lamps are used 2 are required in case of failure.
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Fire & Safety Ltd |
Fire Alarms
