1 2 1 2 З? 4 4.1 4.2 4.3 4.4 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 6.3 7 7.1 7.2 7.3 8 8.1 8.2 8.3 8.4 8.5 8.6 9 9.1 9 2 9 3 9.4 9.5 9.6 9.7 10 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11 11.1 11.2 11.3 11.4 11.5 11.6 12 12.1 12.2 12.3 12.4 12.5 13 13.1 13.2 13.3 13.4 14 14.1 14.2 14.3 14.4 14.5 14.6 14.7 14.8 14.9 15 15.1 15.2 15.3 15.4
15.5 15.6 15.7 16 16.1 16.2 16.3 17 17.1 17.2 17.3 18 18.1 18.2 19 19.1 19.2 20 20.1 20.2 20.3
"EN 12845:2004+ - - - - - - - - - - - - - - - - - - - - ( ( ( ( ( ( ( ( ( (EN 12259-5:2002, IDT) ( ( Requirements (ISO 9001:2005)
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The sprinklers operate at predetermined temperatures to discharge water over the affected part of the area below. The flow of water through the alarm valve initiates a fire alarm. The operating temperature is generally selected to suit ambient temperature conditions.
Only sprinklers in the vicinity of the fire, i.e. those which become sufficiently heated, operate.
The sprinkler system is intended to extend throughout the premises with only limited exceptions.
In some life safety applications an authority might specify sprinkler protection only in certain designated areas and solely to maintain safe conditions for the evacuation of persons from the sprinkler protected areas.
It should not be assumed that the provision of a sprinkler system entirely obviates the need for other means of fighting fires and it is important to consider the fire precautions in the premises as a whole.
Structural fire resistance, escape routes, fire alarm systems, particular hazards needing other fire protection methods, provision of hose reels and fire hydrants and portable fire extinguishers, etc., safe working and goods handling methods, management supervision and good housekeeping all need consideration.
It is essential that sprinkler systems should be properly maintained to ensure operation when required. This routine is liable to be overlooked or given insufficient attention by supervisors. It is, however, neglected at peril to the lives of occupants of the premises and at the risk of crippling financial loss. The importance of proper maintenance cannot be too highly emphasized.
When sprinkler systems are out of service extra attention should be paid to fire precautions and the appropriate authorities informed.
This standard is intended for use by those concerned with purchasing, designing, installing, testing, inspecting, approving, operating and maintaining automatic sprinkler systems, in order that such equipment will function as intended throughout its life.
This standard is intended only for fixed fire sprinkler systems in buildings and other premises on land. Although the general principles may well apply to other uses (e.g. maritime use), for these other uses additional considerations will almost certainly have to be taken into account.
It is a basic assumption that this standard is for the use of companies employing personnel competent in the field of application with which it deals. Only trained and experienced personnel should undertake the design, installation and maintenance of sprinkler systems. Similarly, competent technicians should be used in the installation and testing of the equipment (see Annex M).
FIXED FIREFIGHTING SYSTEMS AUTOMATICSPRINKLER SYSTEMS
Design, installation and maintenance
1 1 SCOPE
This standard specifies requirements and gives recommendations for the design, installation and maintenance of fixed fire sprinkler systems in buildings and industrial plant, and particular requirements for sprinkler systems, which are integral to measures for the protection of life.
This standard covers only the types of sprinkler specified in EN 12259-1 (see annex L).
The requirements and recommendations of this standard are also applicable to any addition, extension, repair or other modification to a sprinkler system. They are not applicable to water spray or deluge systems.
It covers the classification of hazards, provision of water supplies, components to be used, installation and testing of the system, maintenance, and the extension of existing systems, and identifies construction details of buildings which are the minimum necessary for satisfactory performance of sprinkler systems complying with this standard.
2 This standard does not cover water supplies to systems other than sprinklers. Its requirements can be used as guidance for other fixed fire fighting extinguishing systems, however, provided that any specific requirements for other fire fighting extinguishing supplies are taken into account.
The requirements are not valid for automatic sprinkler systems on ships, in aircraft, on vehicles and mobile fire appliances or for below ground systems in the mining industry.
Sprinkler system design deviations may be allowed when such deviations have been shown to provide a level of protection at least equivalent to this Eur opean Standard, for example by means of full scale fire testing where appropriate, and where the design criteria have been fully documented.
2 NORMATIVE REFERENCES
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 54-1, Fire detection and fire alarm systems - Introduction
EN 54-2, Fire detection and fire alarm systems - Control and indicating equipment
EN 54-3, Fire detection and fire alarm systems - Fire alarm devices - Sounders
EN 54-4, Fire detection and fire alarm systems - Power supply equipment
EN 54-5, Fire detection and fire alarm systems - Heat detectors - Point detectors
EN 54-10, Fire detection and fire alarm systems - Flame detectors - Point detectors
EN 54-11, Fire detection and fire alarm systems - Manual call points
EN 287-1, Approval testing of welders - Fusion welding - Part 1: Steels
EN 1057, Copper and copper alloys-Seamless, round copper tubes for water and gas in sanitary and heating applications
EN 1254 (all parts), Copper and copper alloys - Plumbing fittings
EN 12259-1, Fixed firefighting systems - Components for sprinkler and water spray systems-Part 1: Sprinklers
EN 12259-2, Fixed firefighting systems - Components for sprinkler and water spray systems - Part 2: Wet alarm valve assemblies
EN 12259-3, Fixed firefighting systems - Components for sprinkler and water spray systems - Part 3: Dry alarm valve assemblies
EN 12259-4, Fixed firefighting systems - Components for sprinkler and water spray systems - Part 4: Water motor alarms
EN 12259-5, Fixed firefighting systems - Components for sprinkler and water spray systems - Part 5: Water flow detectors
prEN 12259-12, Fixed firefighting systems - Components for sprinkler and water spray systems - Part 12: Sprinkler pumps
EN 12723, Liquid pumps - General terms for pumps and installations - Definitions, quantities, letter symbols and units
EN 50342-1, Lead-acid starter batteries - Part 1: General requirements and methods of test
EN 50342-2, Lead-acid starter batteries - Part 2: Dimensions of batteries and marking of terminals
EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 60623, Secondary cells and batteries containing alkaline or other non acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells (IEC 60623:2001)
EN 60947-1, Low-voltage switchgear and controlgear - Part 1: General rules (IEC 60947-1:2007)
EN 60947-4, Low-voltage switchgear and controlgear - Contactors and motor-starters - Electromechanical contactors and motor-starters (IEC 60947-4-1:2000)
EN ISO 3677, Filler metal for soft soldering, brazing and braze welding - Designation (ISO 3677:1992)
ISO 65, Carbon steel tubes suitable for screwing in accordance with ISO 7-1
ISO 3046 (all parts), Reciprocating internal combustion engines - Performance
EN 54-1 EN 54-2 EN 54-3 EN 54-4 EN 54-5 EN 54-10 EN 54-11 EN 287-1 EN 1057 EN 1254 ( EN 12259-1 EN 12259-2 EN 12259-3 EN 12259-4 EN 12259-5 prEN 12259-12 EN 12723 EN 50342-1 EN 50342-2 EN 60529 EN 60623 EN 60947-1 EN 60947-4 EN ISO 3677 ISO 65 ISO 3046 (
3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 For the purposes of this document, the following terms and definitions apply.
3.1 ' pressure gauge connected to a town main connection, between the supply pipe stop valve and the nonreturn valve
3.2 accelerator
device that reduces the delay in operation of a dry alarm valve, or composite alarm valve in dry mode, by early detection of the drop in air or inert gas pressure on sprinkler operation
3.3 alarm test valve
valve through which water may be drawn to test the operation of the water motor fire alarm and/or of any associated electric fire alarm
3.4 alarm valve
non-return valve, of the wet, dry or composite type that also initiates the water motor fire alarm when the sprinkler installation operates
3.5 alarm valve, alternate
alarm valve suitable for a wet, dry or alternate installation
3.6 alarm valve, dry
alarm valve suitable for a dry installation; and/or in association with a wet alarm valve for an alternate installation
3.7 alarm valve, pre-action
alarm valve suitable for a pre-action installation
3.8 alarm valve, wet
alarm valve suitable for a wet installation
3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.9 area of operation
the maximum area, over which it is assumed, for design purposes, that sprinklers will operate in a fire
3.10 area of operation, hydraulically most favourable
the location in a sprinkler array of an area of operation of specified shape at which the water flow is the maximum for a specific pressure measured at the control valve set
3.11 area of operation, hydraulically most unfavourable
the location in a sprinkler array of an area of operation of specified shape at which the water supply pressure measured at the control valve set is the maximum needed to give the specified design density
3.12 arm pipe
pipe less than 0,3 m long, o
