Preface

TCVN 9310-3:2012 is completely equivalent to ISO 8421-3:1989.

TCVN 9310-3:2012 was converted from TCXDVN 215 : 1998 (ISO 8421-3:1989) in accordance with the provisions of Clause 1, Article 69 of the Law on Standards and Technical Regulations and Point b), Clause 1, Article 7 of Government Decree No. 127/2007/ND-CP dated August 1, 2007 detailing the implementation of certain articles of the Law on Standards and Technical Regulations.

The TCVN 9310 series under the general title “Fire Protection – Vocabulary” includes the following parts:

– TCVN 9310-3:2012 (ISO 8421-3:1989) Part 3: Fire Detection and Alarm.

– TCVN 9310-4:2012 (ISO 8421-4:1990) Part 4: Fire Fighting Equipment.

– TCVN 9310-8:2012 (ISO 8421-8:1990) Part 8: Terms Specific to Fire Fighting, Rescue and Hazardous Materials Handling.

The ISO 8421 series “Fire Protection – Vocabulary” also includes the following parts:

– ISO 8421-1:1987 Part 1: General Terms and Phenomena of Fire.

– ISO 8421-2:1987 Part 2: Structural Fire Protection.

– ISO 8421-5:1988 Part 5: Smoke Control.

– ISO 8421-6:1987 Part 6: Evacuation and Means of Escape.

– ISO 8421-7:1987 Part 7: Explosion Detection and Suppression Means.

TCVN 9310-3:2012 was compiled by the Institute of Architecture, Urban and Rural Planning, proposed by the Ministry of Construction, appraised by the Directorate for Standards, Metrology and Quality, and announced by the Ministry of Science and Technology.

1. Scope

This standard specifies terms and definitions related to fire detection and alarm. General terms are given in ISO 8421-1. In this standard, the terms are presented in alphabetical order of the English language.

2. Normative references

The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 8124-1:1987, “Fire Protection – Vocabulary – Part 1: General Terms and Phenomena.”

3. Terms and definitions

3.1. General terms (Except fire detectors)

3.1.1. Alarm

Alarm, initiated either by a person or by an automatic device.

3.1.2. False alarm

Alarm (3.1.1) considered to be false because the fire reported has not and does not exist. This false alarm may be due to malice, misapprehension or accidental fault.

3.1.3. Automatic fire detection and alarm system

Fire alarm system (3.1.21) comprising components for automatically detecting a fire, initiating an alarm of fire and initiating other actions as appropriate.

NOTE: The system may also include manually operated call points (3.1.14).

3.1.4. Automatic fire protection equipment

Equipment controlling or suppressing fire, for example smoke dampers, shutters, fans or automatic extinguishing equipment.

3.1.5. Automatic fire signal

Alarm (3.1.1) originating from an automatic device, audible and/or visible.

3.1.6. Central alarm station

A continuously manned center at an organization outside the premises which is protected or monitored, whose operators, upon receipt of a fire call (3.1.22), notify the fire brigade.

3.1.7. Control center

Room continuously manned inside or near the premises likely to be subject to risk, providing equipment indicating the situation in each protected area and the necessary means of communication for calling the emergency services.

3.1.8. Automatic fire protection equipment control

Automatic device used to actuate automatic fire protection equipment following receipt of a signal from the fire alarm control panel.

3.1.9. Control room

A fully equipped, continuously manned room within the premises of the fire brigade. Emergency calls are received there and the personnel and equipment are then deployed.

3.1.10. Fault signal (trouble signal)

Automatic signal, audible and visible, warning that the system has developed a fault.

3.1.11. Fault signal receiving station

Room receiving fault signals (3.1.10) and initiating the necessary repairs.

3.1.12. Fault signal transmission equipment

Intermediate equipment transmitting the fault signal (3.1.10) from the fire alarm control panel to the fault signal receiving station (3.1.11).

3.1.13. Fire alarm

See “alarm” (3.1.1).

3.1.14. Manual call point

Manually operated device for the purpose of activating an automatic fire detection and alarm system (3.1.3).

3.1.15. Fire alarm and detection control equipment

Equipment supplying power to fire detectors (3.2) and:

a) used to receive a fire detection signal and actuate an alarm of fire;

b) possibly transmitting the fire detection signal via fire alarm transmission equipment to the fire brigade or to automatic fire fighting equipment;

c) used for automatically supervising the correct operation of the system.

3.1.16. Manual fire alarm equipment

Fire alarm equipment, manually operated, producing an audible or visible alarm signal.

3.1.17. Alarm receiving center

Center situated within or remote from the protected premises, from which the necessary protective or fire fighting measures can be activated at any time.

3.1.18. Alarm transmission equipment

Intermediate equipment transmitting the alarm signal from the fire detection and alarm control equipment to the alarm receiving center.

3.1.19. Alarm signaling equipment

Equipment, not part of the fire detection and alarm control equipment, used to indicate an alarm of fire e.g. a siren or optical signaling device.

3.1.20. Alarm sounder (bell)

That part of a fire alarm system giving an audible alarm of fire.

3.1.21. Fire alarm system

Combination of components for giving an audible, visible or perceptible alarm of fire. The system may also initiate other actions.

3.1.22. Fire call

Alarm of fire, given verbally by a person or by telephone to the fire brigade control room.

3.1.23. Fire telephone

Telephone reserved for fire calls (3.1.22).

3.1.24. Fire telephone line

Telephone line reserved for the transmission of fire information.

3.1.25. Protected (or monitored) premises

Premises or part of premises equipped with an automatic fire extinguishing system or fire detection and/or manual fire fighting systems.

3.1.26. Triggering device (activating device)

Device allowing automatic or manual actuation of an alarm, for example a fire detector, a manual call point or a pressure switch.

3.1.27. Zone

Subdivision of protected premises in which a stated number of automatic and/or manual fire detectors are allowed to be connected within the fire detection and alarm control equipment, which are displayed collectively on a single indicating device (or indicating zone) specific to that zone.

3.1.28. Zone indicator

Part of the fire indicating equipment visually identifying the zone from which has originated an initial fire alarm signal or fault signal (3.1.10).

3.2. Fire detectors

3.2.1. Actuating fire detector

A form of fire detector, not a part of a fire alarm system, used to operate auxiliary devices.

3.2.2. Fire detector

A device which forms a part of an automatic fire detection system, containing at least one sensor which constantly or at intervals monitors at least one appropriate physical and/or chemical phenomenon associated with fire, and which provides at least one corresponding signal to the fire detection and alarm control equipment.

3.2.3. Flame detector

A fire detector sensitive to the radiation emitted from flames.

3.2.4. Combustion gas fire detector

A fire detector sensitive to gases produced by a fire and/or thermal decomposition.

3.2.5. Heat detector

A fire detector sensitive to an abnormal temperature and/or rate of temperature rise and/or temperature differential.

3.2.6. Ionization smoke detector

A fire detector sensitive to products of combustion capable of affecting ionization currents within the detector.

3.2.7. Line-type fire detector

A fire detector which is able to detect the phenomenon being monitored over a continuous line.

3.2.8. Multi-point fire detector

A fire detector which is able to detect the phenomenon being monitored around a multiple of points, e.g. heat sensing elements.

3.2.9. Optical (photoelectric) smoke detector

A fire detector sensitive to products of combustion capable of affecting absorption of radiation in the infra-red, visible and/or ultra-violet regions of the electromagnetic spectrum.

3.2.10. Point fire detector

A fire detector in which the phenomenon being monitored is detected at a discrete point.

3.2.11. Self-contained fire alarm

Fire detection device having all the necessary components (except possibly the energy source) to detect a fire and give an audible alarm, enclosed in one housing.

3.2.12. Smoke detector

A fire detector sensitive to particulate products of combustion and/or pyrolysis suspended in the atmosphere.