prEN 17451

SLOVENSKI STANDARD
oSIST prEN 17451:2020
01-februar-2020
Vgrajene naprave za gašenje - Avtomatski sprinklerski sistemi - Projektiranje,
montaža, vgradnja in preverjanje črpalk
Fixed firefighting systems - Automatic sprinkler systems - Design, assembly, installation
and commissioning of pump sets
Ortsfeste Brandbekämpfungsanlagen - Automatische Sprinkleranlagen - Projektierung,
Zusammenstellung, Montage und Inbetriebnahme von Pumpenaggregaten
Installations fixes de lutte contre l’incendie - Systèmes d’extinction automatique de type
sprinkleur - Conception, assemblage, installation et mise en service des groupes
motopompes
Ta slovenski standard je istoveten z: prEN 17451
ICS:
13.220.10 Gašenje požara Fire-fighting
oSIST prEN 17451:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17451:2020


DRAFT
EUROPEAN STANDARD
prEN 17451
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2019
ICS 13.220.20
English Version

Fixed firefighting systems - Automatic sprinkler systems -
Design, assembly, installation and commissioning of pump
sets
Installations fixes de lutte contre l'incendie - Systèmes Ortsfeste Brandbekämpfungsanlagen - Automatische
d'extinction automatique de type sprinkleur - Sprinkleranlagen - Projektierung, Zusammenstellung,
Conception, assemblage, installation et mise en service Montage und Inbetriebnahme von Pumpenaggregaten
des groupes motopompes
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 191.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17451:2019 E
worldwide for CEN national Members.

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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, symbols and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Symbols and abbreviated terms . 8
4 Performance of pump set . 8
4.1 General design principles . 8
4.2 Components . 9
4.2.1 Connections . 9
4.2.2 Pumps . 9
4.3 Pump set activation . 10
4.4 Cooling and by-pass flow . 10
4.5 Fuel tank design . 10
4.6 Fuel quality. 11
4.7 Speed of rotation . 11
5 Couplings. 11
5.1 Pump coupling and mounting . 11
5.2 Coupling selection . 12
5.3 Coupling installation and alignment . 13
6 Baseplate or mounting frame . 13
6.1 General requirements for pump set installation and fixing considerations . 13
6.2 Load transfer – Vibration . 13
7 Pump set controllers . 14
7.1 Pump set control panels . 14
7.2 Pump set controller operational requirements . 14
7.3 Electrical pump set operation . 15
7.3.1 Start options . 15
7.3.2 Monitoring and visual indications electric pump set control panel . 15
7.3.3 Panel components . 15
7.3.4 Cables between electric panel and electric motor . 15
7.4 Monitoring of diesel pump driven operations . 16
7.4.1 Monitoring and visual indications Diesel pump set control panel . 16
7.4.2 Panel components . 16
7.4.3 Battery chargers . 16
7.4.4 Battery chargers . 17
7.4.5 Siting of batteries and chargers . 17
7.4.6 Cables between electric panel and diesel engine . 17
8 Electrical drivers . 17
8.1 General. 17
8.2 Motor sizing – environmental conditions . 18
9 Diesel drivers . 18
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9.1 General . 18
9.2 Power . 18
9.3 Diesel driver sizing . 18
9.3.1 General . 18
9.3.2 Diesel driver sizing - environmental factors . 19
9.4 Motor torque . 19
9.5 Diesel engine equipped with electronic fuel management control . 19
9.6 Cooling system . 19
9.6.1 General . 19
9.6.2 Heat exchanger . 19
9.6.3 Air cooled radiator . 20
9.6.4 Air cooled engine . 20
9.6.5 Cooling system water supply . 20
9.6.6 Cooling system design considerations . 20
9.6.7 Air filtration . 21
9.7 Exhaust system . 21
9.8 Starting mechanism . 21
9.8.1 General . 21
9.8.2 Automatic starting. 21
9.8.3 Emergency manual starting . 21
9.8.4 Test facility for manual starting facilities . 21
9.8.5 Starter motor . 22
9.9 Pump set engine supplier pre-dispatch testing of diesel engine. 22
9.9.1 General . 22
9.9.2 Test procedure . 22
9.9.3 Test report . 22
10 Handover, installation and commissioning . 22
10.1 General . 22
10.2 Pre-dispatch testing . 23
10.2.1 General . 23
10.2.2 Verification of performance . 23
10.3 Documentation . 23
10.4 Pre-commissioning checks . 25
10.5 Diesel set commissioning . 25
10.6 Electrical set commissioning . 26
11 Maintenance programme . 26
Annex A (normative) Pump set installation and fixing considerations . 27
Annex B (informative) Electric motor controllers starting methods explained . 29
B.1 Direct on line . 29
B.2 Star-Delta, open transition . 29
B.3 Star-Delta, closed transition . 30
B.4 Solid state soft starter . 30
B.5 Older or less common starting methods . 31
B.5.1 Autotransformer . 31
B.5.2 Primary resistor . 31
Bibliography . 32

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European foreword
This document (prEN 17451:2019) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.

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Introduction
This document covers:
— the design and assembly of the pump set in accordance to the requirements of EN 12845, EN 16925
and CEN/TS 14816;
— identification of essential pump set components;
— the performance characteristics for components used within a pump set;
— performance testing requirements for diesel and electric driven pump sets;
— commissioning and handover site testing;
— performance handover documentation;
— servicing and maintenance handover documentation.
Figure 1 identifies the typical pump set components covered by this standard.


Figure 1 — Example of a typical pump set assembly for a diesel driven unit
The performance requirements for the pump set will be by reference to the relevant European
component standards, where available, and for those key components such as pumps, drivers,
couplings, baseplates and controllers. Where suitable component standards do not exist, this document
sets the performance requirements for the pump set.
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1 Scope
This document specifies the assembly of components to produce a pump set which meet the
performance requirements and characteristics for specified water supplies in accordance with the
design, assembly, installation and commissioning of the main fire diesel and electric pump sets used in
fixed firefighting systems conforming to EN 12845, CEN/TS 14816 and EN 16925.
This document is also applicable to fire-fighting pump sets for firefighting hydrants and hose reels
where included in the fixed firefighting water supply specification.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
CEN/TS 14816, Fixed firefighting systems — Water spray systems — Design, installation and maintenance
EN 12845, Fixed firefighting systems — Automatic sprinkler systems — Design, installation and
maintenance
EN 16925, Fixed firefighting systems — Automatic residential sprinkler systems — Design, installation
and maintenance
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 590, Automotive fuels — Diesel — Requirements and test methods
EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529)
EN 60529:1991/A1:2000, Degrees of protection provided by enclosures (IP code) (IEC
60529:1989/A1:1999)
EN 60529:1991/A2:2013, Degrees of protection provided by enclosures (IP code) (IEC
60529:1989/A2:2013)
EN 60623, Secondary cells and batteries containing alkaline or other non-acid electrolytes — Vented
nickel-cadmium prismatic rechargeable single cells (IEC 60623)
EN IEC 60947-4-1:2019, Low-voltage switchgear and controlgear — Part 4-1: Contactors and motor-
starters — Electromechanical contactors and motor-starters (IEC 60947-4-1:2018)
IEC 60034-1, Rotating electrical machines — Part 1: Rating and performance
ISO 3046-1, Reciprocating internal combustion engines — Performance — Part 1: Declarations of power,
fuel and lubricating oil consumptions, and test methods — Additional requirements for engines for general
use
prEN 12259-12:2017, Fixed firefighting systems — Components for sprinkler and water spray systems —
Part 12: Pumps
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3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12845, EN 16925, CEN/TS
14816 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1.1
assembly
design, production and testing of the pump
3.1.2
installation
mounting and commissioning of the pump set in accordance with the pump set manufacturer’s
installation manual and procedures
3.1.3
maintenance
work performed to keep pump sets operable including repairs where required
3.1.4
pump set
assembly which is intended to supply water to automatic sprinkler or water spray systems, comprising
at least a pump, driver or motor, controller unit, partial wiring loom, drive coupling, mounting frame,
baseplate and where required fuel tank
3.1.5
installer
installer of the fire pump set in accordance with the manufacturer’s installation manual and procedures
3.1.6
pump set assembler
entity responsible for the design and build of the pump set
3.1.7
flexible fire pump couplings and flexible connecting drive shafts
integrated unit which provides power transmission from diesel engines or electric motors to fire pumps
that supply water to fire protection systems
3.1.8
all elastomeric coupling
plastic coupling
coupling that relies solely on an elastomeric material for power transmission
3.1.9
driver service factor
design margin specified by driver manufacturers to account for higher torque demand conditions than
normal but which can be encountered under certain extreme operating conditions
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3.1.10
coupling safety factor
SFk
safety margin specified by coupling manufacturers to address uncertainties in design
3.1.11
back pull-out type pump
centrifugal pump design type which allows the rotating assembly to be pulled out of the pump casing
without having to remove the pump casing from the piping
3.1.12
Biodiesel
vegetable oil or animal fat-based FAME diesel fuel
NOTE to entry 1: Biodiesel can have 100 % FAME content or blended with petroleum derived diesel fuel in any
proportions.
NOTE to entry 2: See 4.6.
3.2 Symbols and abbreviated terms
For the purposes of this document, the following symbols and abbreviated terms apply.
L basic life rating time by which ten percent of a population of a product will have failed (see
10
ISO 281)
ECM electronic fuel management control
EMC electromagnetic compatibility
EMF electromagnetic fields
FAME fatty acid methyl ether
FLA full load amperes
FLC full load current
IFN numerical value of the fuel stop power taken as the maximum IFN value in
accordance to ISO 3046-1 for the driver, expressed in kilowatt
LRC locked rotor current
NPSH net positive suction head
NPSHr net positive suction head required
Pdm power distribution module
SFk coupling safety factor
VFD variable frequency drive

4 Performance of pump set
4.1 General design principles
The design details covered in this clause address the general principles which shall be considered for all
pump set designs covered by this document. The design of pump set shall be based on the following
information provided to the pump set assembler:
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— flow and corresponding head including details of the safety margin applied for the unfavourable
area, in line with the requirements of EN 12845, CEN/TS 14816 or EN 16925 (e.g. at least 10 % or a
maximum of 0,5 bar higher than that required in the case of EN 16925 or at least 0,5 bar higher
than that required in the case of EN 12845 and CEN/TS 14816);
— flow for favourable area maximum possible demand flow;
— maximum possible suction pressure at pump suction flange;
— available NPSH at low water level in water storage tank at pump suction flange at the maximum
possible demand flow including 1 m safety margin;
— duration of operation for fuel tank sizing;
— driver type (electric or diesel);
— applicable fixed firefighting system design specification: EN 12845, CEN/TS 14816 or EN 16925;
— hazard class against which the fixed firefighting system is designed as given in EN 12845,
CEN/TS 14816 or EN 16925 e.g. LH, OH, HHP or HHS in the case of EN 12845;
— water quality (potable, sea or filtered) description as defined in EN 12845.
The pump set shall be designed to ensure a reliable and stable supply of water at the specified volume
flow and pressure over the operating range and duration in accordance with EN 12845, CEN/TS 14816
or EN 16925.
4.2 Components
4.2.1 Connections
All service interface connection requirements (including electrical, hydraulic and pneumatic) shall be
provided as part of the installation instructions to enable the correct installation of the pump set on-
site. The connections shall be easily accessible and located in accordance with EN 12845, CEN/TS
14816 or EN 16925.
4.2.2 Pumps
Pumps, shall be in accordance with prEN 12259-12:2017 and shall be driven either by electric motors
or diesel engines, capable of providing at least the power required to comply with the following:
a) for pumps with non-overloading power characteristic curves, the maximum power required at the
peak of the power curve;
b) for EN 12845 applications, for pumps with rising power characteristic curves, the maximum power
for any conditions of pump load, from zero flow to a flow corresponding to a pump NPSH required
equal to 16 m;
c) for EN 16925 applications, for pumps with rising power characteristic curves, the maximum power
for any conditions of pump load, from zero flow to the maximum flow on the pump curve.
The pump shall conform to the performance characteristics specified by prEN 12259-12:2017.
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Table 1 — Summary of typical prEN 12259-12:2017 pump designs
Type Pump design
1 End suction long coupled
2 End suction closed coupled
3 Axial horizontal split case
4 Multistage inline pumps
5 Single stage inline pumps
6 Ring section pumps
7 Vertical turbine pumps
8 Submersible motor pumps
9 Multistage multi-outlet pumps

End suction pumps shall be of the “back pull-out” type. Pipes shall be supported independently of the
pump.
4.3 Pump set activation
The activation of the pump set shall arise from an externally supplied signal in accordance with the
relevant standard EN 12845, CEN/TS 14816 or EN 16925.
4.4 Cooling and by-pass flow
Arrangements such as by-pass flows shall be made to ensure a continuous flow of water through the
pump sufficient to prevent overheating when it is operating against a closed valve. The by-pass system
can also be required to maintain the operational temperature of the diesel drivers. Any additional flow
requirements shall also be considered.
Water to cool the pump (in the closed valve condition) shall be taken from the sprinkler system water
supply.
The by-pass system shall not be supplied as a component of the pump set.
NOTE As it can be formed as part of the wider system pipework installation in a manner similar to the supply
of electrical cabling etc.
prEN 12259-12:2017 specifies the minimum by-pass flow for the compliant pump.
The by-pass flow shall be taken into account in the fixed firefighting system hydraulic calculation and
pump selection. This additional flow shall be provided in addition to the fixed firefighting system flow
figures.
The pump set assembler shall specify the required parameters for the cooling circuit and flow.
4.5 Fuel tank design
The fuel tank capacity shall be sufficient to enable the engine to run on full load for the required period
of duty. Minimum values, taken from EN 12845 as follows:
— 3 h for LH;
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