97/541589 DC : DRAFT MAY 1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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PREN 12845 - FIXED FIREFIGHTING SYSTEMS - AUTOMATIC SPRINKLER SYSTEMS - DESIGN AND INSTALLATION
26-08-2003
23-11-2012
Foreword
Introduction
1 Scope
2 Normative references
3 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 Building and areas to be protected
5.2 Storage in the open area
5.3 Fire resisting compartments
5.4 Protection of concealed spaces
6 Classifications 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 hazards storage - HHS
7.3 Pressure and flow requirements for precalculated systems
8 Water supplies - General
8.1 Suitability
8.2 Connections for other services
8.3 Housing of equipment for water supplies
8.4 Test facility devices
8.5 Pressure/flow tests on water supplies
8.6 Water supplies pressure test
9 Choice of water supply
9.1 General
9.2 Town mains
9.3 Storage tanks
9.4 Inexhaustible sources
9.5 Pressure tanks
9.6 Type of water supply
9.7 Isolation of water supply
10 Pumps
10.1 General
10.2 Multiple pump arrangements
10.3 Compartments for pump sets
10.4 Maximum temperature of water supply
10.5 Valves and accessories
10.6 Suction conditions
10.7 Performance characteristics
10.8 Electricity driven pump sets
10.9 Diesel engine driven pump sets
11 Installation type and size
11.1 Wet pipe Installations
11.2 Dry pipe Installations
11.3 Alternate Installations
11.4 Pre-actions 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 Maximum 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
13.4 Fully 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 escutcheon plates
14.9 Corrosion protection of sprinklers
15 Valves
15.1 Control valve sets
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 alarm
16.2 Electrical water flow and pressure switches
17 Pipework
17.1 General
17.2 Pipe supports
17.3 Pipe work in concealed spaces
18 Signs, notices and information
18.1 Block plan
18.2 Signs and notices
19 Commissioning and acceptance tests
19.1 Commissioning tests
19.2 Completion certificate and documents
20 Maintenance
20.1 General
20.2 Action following sprinkler operation
20.3 User's programme of inspection and checking
20.4 Services and maintenance schedule
Annexes
Annex A (normative) Classification of typical hazards
Annex B (normative) Methodology for categorising stored goods
Annex C (normative) Alphabetic listing of stored products and
categories
Annex D (normative) Zoning of sprinkler installations
Annex E (normative) Special requirements for high rise systems
Annex F (normative) Special requirements for life safety systems
Annex G (normative) Protection of special hazards
Annex H (normative) Sprinkler systems monitoring
Annex J (normative) Special technology
Committee |
FSH/18/2
|
DocumentType |
Draft
|
PublisherName |
British Standards Institution
|
Status |
Superseded
|
SupersededBy |
Standards | Relationship |
PREN 12845 : DRAFT 2001 | Identical |
ISO 274:1975 | Copper tubes of circular section — Dimensions |
EN 12259-5:2002 | Fixed firefighting systems - Components for sprinkler and water spray systems - Part 5: Water flow detectors |
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IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV | Low-voltage switchgear and controlgear - Part 1: General rules |
ISO 2016:1981 | Capillary solder fittings for copper tubes Assembly dimensions and tests |
EN 65 : LATEST | |
EN 60095-1:1993/A12:1999 | LEAD-ACID STARTER BATTERIES - PART 1: GENERAL REQUIREMENTS AND METHODS OF TEST |
IEC 60623:2017 | Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells |
EN ISO 9000:2015 | Quality management systems - Fundamentals and vocabulary (ISO 9000:2015) |
EN 287-1:2011 | Qualification test of welders - Fusion welding - Part 1: Steels |
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