• NEN EN 12845 : 2015 C1 2016

    Current The latest, up-to-date edition.

    FIXED FIREFIGHTING SYSTEMS - AUTOMATIC SPRINKLER SYSTEMS - DESIGN, INSTALLATION AND MAINTENANCE

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    Published date:  12-01-2013

    Publisher:  Netherlands Standards

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Contract planning and documentation
       4.1 General
       4.2 Initial considerations
       4.3 Preliminary or estimating stage
       4.4 Design stage
    5 Extent of sprinkler protection
       5.1 Buildings and areas to be protected
       5.2 Storage in the open air
       5.3 Fire resistant separation
       5.4 Protection of concealed spaces
       5.5 Height difference between the highest and lowest
            sprinklers
    6 Classification of occupancies and fire hazards
       6.1 General
       6.2 Hazard classes
       6.3 Storage
    7 Hydraulic design criteria
       7.1 LH, OH and HHP
       7.2 High Hazard Storage - HHS
       7.3 Pressure and flow requirements for pre-calculated
            systems
    8 Water supplies
       8.1 General
       8.2 Maximum water pressure
       8.3 Connections for other services
       8.4 Housing of equipment for water supplies
       8.5 Test facility devices
       8.6 Water Supply test
    9 Type of water supply
       9.1 General
       9.2 Town mains
       9.3 Storage tanks
       9.4 Inexhaustible sources - Settling and suction chambers
       9.5 Pressure tanks
       9.6 Choice of water supply
       9.7 Isolation of water supply
    10 Pumps
       10.1 General
       10.2 Multiple pump arrangements
       10.3 Compartments for pumpsets
       10.4 Maximum temperature of water supply
       10.5 Valves and accessories
       10.6 Suction conditions
       10.7 Performance characteristics
       10.8 Electrically driven pumpsets
       10.9 Diesel engine driven pumpsets
    11 Installation type and size
       11.1 Wet pipe installations
       11.2 Dry pipe installations
       11.3 Alternate installations
       11.4 Pre-action installations
       11.5 Subsidiary dry pipe or alternate extension
       11.6 Subsidiary water spray extension
    12 Spacing and location of sprinklers
       12.1 General
       12.2 Maximum area of coverage per sprinkler
       12.3 Minimum distance between sprinklers
       12.4 Location of sprinklers in relation to building
            construction
       12.5 Intermediate sprinklers in HH occupancies
    13 Pipe sizing and layout
       13.1 General
       13.2 Calculation of pressure losses in pipework
       13.3 Pre-calculated systems
    14 Sprinkler design characteristics and uses
       14.1 General
       14.2 Sprinkler types and application
       14.3 Flow from sprinklers
       14.4 Sprinkler temperature ratings
       14.5 Sprinkler thermal sensitivity
       14.6 Sprinkler guards
       14.7 Sprinkler water shields
       14.8 Sprinkler rosettes
       14.9 Corrosion protection of sprinklers
    15 Valves
       15.1 Control valve set
       15.2 Stop valves
       15.3 Ring main valves
       15.4 Drain valves
       15.5 Test valves
       15.6 Flushing connections
       15.7 Pressure gauges
    16 Alarms and alarm devices
       16.1 Water flow alarms
       16.2 Electrical water flow and pressure switches
       16.3 Fire brigade and remote central station alarm
            connection
    17 Pipework
       17.1 General
       17.2 Pipe supports
       17.3 Pipework in concealed spaces
    18 Signs, notices, and information
       18.1 Block plan
       18.2 Signs and notices
    19 Commissioning and acceptance tests and periodic inspection
       19.1 Commissioning tests
       19.2 Completion certificate and documents
    20 Maintenance
       20.1 General
       20.2 User's programme of inspection and checking
       20.3 Service and maintenance schedule
    21 Evaluation of conformity
       21.1 Sprinkler kit
       21.2 Sprinkler system
    Annex A (normative) Classification of Typical typical hazards
    Annex B (normative) Methodology for categorizing stored goods
      B.1 General
      B.2 Material factor (M)
      B.3 Storage configuration
    Annex C (normative) Alphabetical listing of stored
            products and categories
    Annex D (normative) Zoning of sprinkler installations
      D.1 General
      D.2 Zoning of installations
      D.3 Requirements for zoned installations
      D.4 Block plan
    Annex E (normative) Special requirements for high rise systems
      E.1 General
      E.2 Design criteria
      E.3 Water supplies
    Annex F (normative) Special requirements for life safety systems
      F.1 Subdivision into zones
      F.2 Wet Pipe pipe installations
      F.3 Sprinkler type and sensitivity
      F.4 Control Valve valve set
      F.5 Water supplies
      F.6 Theatres
      F.7 Additional precautions for maintenance
    Annex G (normative) Protection of Special hazards
      G.1 General
      G.2 Aerosols
      G.3 Clothes in multiple garment hanging storage
      G.4 Flammable liquid storage
      G.5 Idle pallets
      G.6 Spirit based liquors in wooden barrels
      G.7 Non-woven synthetic fabric
      G.8 Polypropylene or polyethylene storage bins
    Annex H (normative) Sprinkler systems monitoring
      H.1 General
      H.2 Functions to be monitored
    Annex I (normative) Transmission of alarms
      I.1 Functions to be monitored
      I.2 Alarm levels
    Annex J (informative) Precautions and procedures when a
            system is not fully operational
      J.1 Minimizing the effects
      J.2 Planned shut-down
      J.3 Unplanned shut-down
      J.4 Action following sprinkler operation
    Annex K (informative) Twenty-five year inspection
    Annex L (informative) Special technology
    Annex ZA (informative) Clauses of this European
             Standard addressing the provisions of the
             EU Construction Products Directive
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines requirements and gives recommendations for the design, installation and maintenance of fixed fire sprinkler systems in buildings and industrial plants, and particular requirements for sprinkler systems that are integral to measures for the protection of life.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes NEN 6094. (08/2009) 2004 + A2 2009 edition is also available as a Package with NEN 1073. (07/2015)
    Document Type Standard
    Publisher Netherlands Standards
    Status Current
    Supersedes
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