ISO 24569:2023
(Main)Ships and marine technology — External firefighting system test methods
Ships and marine technology — External firefighting system test methods
This document specifies the test methods for marine external firefighting systems after installation aboard, mainly including test preparation, test conditions, test apparatus and procedures. This document excludes the performance requirements of the equipment. This document is applicable to the testing of external firefighting systems installed on ships for the purpose of extinguishing fires occurring on other vessels, offshore structures or quayside structures. This document applies to marine external firefighting system with water or foam as the medium.
Navires et technologie maritime — Méthodes d’essai des systèmes de lutte contre les incendies extérieurs
Le présent document spécifie les méthodes d’essai applicables aux systèmes de lutte contre les incendies extérieurs en mer, une fois installés à bord. Ces méthodes portent principalement sur la préparation des essais, les conditions d’essai et les appareillages ainsi que les modes opératoires d’essai. Le présent document ne couvre pas les exigences de performance des équipements. Le présent document est applicable à l’essai des systèmes de lutte contre les incendies extérieurs installés sur les navires dans le but d’éteindre les incendies survenant sur d’autres navires, des structures en mer ou des structures à quai. Le présent document est applicable aux systèmes de lutte contre les incendies extérieurs en mer utilisant l’eau ou la mousse comme agent extincteur.
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 24569
First edition
2023-06
Ships and marine technology —
External firefighting system test
methods
Navires et technologie maritime — Méthodes d’essai des systèmes de
lutte contre les incendies extérieurs
Reference number
© ISO 2023
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ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test preparation . 2
4.1 Documents used in the test . 2
4.2 Instruments and tools for the test . 2
5 Test conditions .3
6 Test items and procedures .3
6.1 Test items . 3
6.2 Insulation resistance test of electrical equipment . 4
6.3 Operation test of electric valve . 4
6.4 Operation test of fire monitor . 4
6.4.1 Static control test of fire monitor . 4
6.4.2 Dynamic operation test of fire monitor . 4
6.5 Test of control and alarm system . 4
6.6 Test of fire pump . 5
6.7 Test of fire monitor . 5
6.8 Test of foam fire extinguishing system . 6
6.9 Test of telescopic mast (if applicable) . 6
6.10 Test of water curtain system and fire hydrant . 7
Bibliography . 8
iii
Foreword
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iv
Introduction
The purpose of this document is to provide a standard for test methods, relevant procedures, and
the inspection process of marine external firefighting systems. Moreover, it includes procedures to
comprehensively verify the correctness of the installations and the integrity of the external firefighting
systems, in order to ensure that the main functions and performance indices of the system meet the
specified requirements.
v
INTERNATIONAL STANDARD ISO 24569:2023(E)
Ships and marine technology — External firefighting
system test methods
1 Scope
This document specifies the test methods for marine external firefighting systems after installation
aboard, mainly including test preparation, test conditions, test apparatus and procedures. This
document excludes the performance requirements of the equipment.
This document is applicable to the testing of external firefighting systems installed on ships for the
purpose of extinguishing fires occurring on other vessels, offshore structures or quayside structures.
This document applies to marine external firefighting system with water or foam as the medium.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
external firefighting system
system installed on ships for the purpose of extinguishing fires occurring on other vessels, offshore
installation or quayside structures
Note 1 to entry: In general, the system consists of a fire pump, foam pump, fire monitor, foam proportioner, power
source (3.2), telescopic mast (3.5) (if configured), control console, valve accessories and pipeline.
3.2
power source
prime mover which provides driving power for the fire pump
3.3
water curtain system
fixed system that provides protection of the ship on which the system is installed against external heat
radiation by water spray
3.4
fire monitor
device for continuously spraying a fire extinguishing agent, where water or foam mixture is greater
than 16 l/s, and which is provided by fire pumps and foam pumps (3.9) to supply a fire extinguishing
agent
3.5
telescopic mast
fixed platform for a fire monitor (3.4) installation, driven by power, and which can position the fire
monitor (3.4) to a certain height
3.6
foam concentrate
foam liquid that, when mixed with water in the appropriate concentration, gives a foam solution (3.7)
[SOURCE: ISO 7203-1:2019, 3.8, modified — “foam” added before “concentrate” in the term, and before
“liquid” in the definition.]
3.7
foam solution
solution of foam concentrate (3.6) and water
[SOURCE: ISO 7203-1:2019, 3.15]
3.8
foam proportioner
device which can automatically control the mixing ratio within a certain range of water pressure and
flow
3.9
foam pump
pump that supplies foam concentrate (3.6) to a foam system
3.10
length of throw of the fire monitor
distance measured horizontally from the monitor outlet to the mean impact area of water spray
Note 1 to entry: The mean impact area of water spray is measured for not less than 10 s. The fire monitor (3.4)
outlet end face is measured when the fire monitor (3.4) is spraying under specified conditions.
4 Test preparation
4.1 Documents used in the test
The documents required to conduct the test are as follows:
a) schematic diagram of the external firefighting system;
b) layout of the external firefighting system;
c) layout of the water curtain system;
d) installation drawing and related technical documents of the external firefighting system
equipment;
e) electrical control schematic diagram of the external firefighting system;
f) layout of the external firefighting system electrical equipment;
g) system operation instructions, ex-factory test documents;
h) system equipment test programme.
4.2 Instruments and tools for the test
The instruments and tools required to conduct the test are as follows:
a) anemometer having an accuracy of 0,5 m/s;
NOTE See ISO 10596:2009, 7.2.
b) pressure gauge;
c) vacuum gauge;
d) megohmmeter;
e) ammeter;
f) voltmeter;
g) range finder;
h) stopwatch having an accuracy of 0,1 s;
i) thermometer having an accuracy of 1 °C;
j) goniometer having an accuracy of 1 degree.
Other instrumentation shall be accurate to within the limits as follows:
k) pressure: ±1 % of the value to measure;
l) length: ±1 % of the value to measure;
m) electrical resistance: ±1,5 % of the actual measurement;
n) voltage: ±1,5 % of the actual measurement;
o) electric current: ±1,5 % of the actual measurement.
5 Test conditions
5.1 The external firefighting system shall be installed on board a ship and shall be in fully operating
conditions.
5.2 When measuring the length of throw of the fire monitor, the wind speed shall not be greater than
3 m/s and the fire monitor spray should be along the wind direction.
5.3 There shall be enough operation space around the fire monitor. There shall be no obstacles in the
hull that affect the spray range of the fire monitor.
5.4 There shall be no vessels within the range of the fire monitor.
6 Test items and procedures
6.1 Test items
The following tests shall be conducted:
a) insulation resistance test of electrical equipment;
b) operation test of electric valve;
c) operation test of fire monitor;
d) test of control and alarm system;
e) test of fire pump;
f) test of fire monitor;
g) test of foam fire extinguishing system;
h) test of telescopic mast;
i) test of water curtain system and fire hydrant.
6.2 Insulation resistance test of electrical equipment
Measure the insulation resistance of each electrical equipment of the system before and after the test.
The minimum value of the insulation resistance shall not be less than 1 MΩ.
6.3 Operation test of electric valve
6.3.1 Electric valves shall be opened and closed by manual and remote control, respectively. The
valve movements shall be smooth and free of jamming, the valve open/close position shall be indicated
correctly. The operating current and voltage of each electric valv
...
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