Tiêu chuẩn iso 07076 6 2016

© ISO 2016 Fire protection — Foam fire extinguishing systems — Part 6 Vehicle mounted compressed air foam systems Protection contre l’incendie — Systèmes d’extinction d’in cendie à mousse — Partie 6 É[.]

Fire protection — Foam fire

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F reword v

Introduction vi

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 2

4 Req irements 3

4.1 Complanc 3

4.1.1 T ype as es ment 3

4.1.2 In ivid al as es ments 3

4.2 Safety an pr ote tive measures 4

4.2.1 General 4

4.2.2 Me hanical eq ipment 4

4.2.3 C mp nent un e pr es ur e 5

4.2.4 Mate ial, p rts an comp nents 5

4.2.5 Hot p rt 5

4.2.6 Ele trical eq ipment 5

4.2.7 Operator contr ols an in icators 5

4.2.8 Sys em faiur e an contin ation of on-g oing fir e-fighting o eration 5

4.2.9 Sh tdown contr ol 6

4.2.10 Maintenanc an se vic 6

4.2.11 Pr ote tion agains o e -spe d 6

4.2.12 Safety fr om o e -heating 6

4.3 Pe formanc 6

4.3.1 Operation 6

4.3.2 Pr op rtioning ratio an fo m solution/ ir v lume r atio 6

4.3.3 Storag e ves els 7

5 Tests 7

5.1 General 7

5.1.1 Atmosphe ic con itions for tes s 7

5.1.2 Mou ting arr ang ement 7

5.1.3 Operating con itions for tests 7

5.1.4 Toleranc s 8

5.1.5 Pr ovision for tes s 8

5.1.6 Tes sched le 8

5.2 Nominal pe formanc 8

5.2.1 Obje t 8

5.2.2 Pr oc d re 8

5.2.3 Measur ement 8

5.2.4 Req ir ements 9

5.3 En ur anc 9

5.3.1 Obje t 9

5.3.2 Pr oc d re 9

5.3.3 Measur ement 9

5.3.4 Req ir ements 9

6 Desig natio 10

7 Mar king and data 10

7.1 Mar king 1

7.2 Operator ins ructions 1

7.2.1 General 1

7.2.2 CA FS information 1

7.2.3 Desc iption 1

7.2.5 S rvicing an maintenanc 1

7.2.6 Fault causes and corr ections 1

7.2.7 Othe te h ical documents 1

7.2.8 Short-form o erating ins ructions 1

8 Repor t 13

A nne x A (informative)Guidanc e o the inspectio and testing of CA FS 15

Biblog raph y 21

ISO (he Int ernational Org nization for Stan ardization) is a worldwide fede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Standards is normaly car ied out

through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical

committ ee has be n es a l shed has the right t o be r pr sent ed on that committ ee Int ernational

org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work

ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of

ele trot ech ical s an ardization

The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar

desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the

dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the

edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)

A tt ention is drawn t o the p s ibi ity that ome of the element of this document ma be the subje t of

p t ent right ISO shal not be held r sp nsible for identifying any or al such p t ent right Detais of

any p t ent right identif ied d ring the develo ment of the document wi be in the Introd ction an / r

on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )

Any trade name used in this document is information given for the convenienc of use s an does not

cons itut e an en orsement

F or an ex lanation on the meaning of ISO spe if ic t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’ s adhe enc t o the WTO principles in the Te h ical

Bar ie s t o Trade (TBT) se the fol owing URL: F or word - Sup lementary information

The committ ee r sp nsible for this document is ISO/TC2 , Eq ipment fr fir protec tion a d fir fig tin ,

Subcommitt ee SC6, Fo m a d p wde media a d fir fig tin sys tems us in fama d p wde

ISO 7 76 consis s of the folowing p rt , u de the g ene al title Fir protec tio — Fo m fir ex tin ui shin

sys tems:

— Part 1: Fo m pro ortionin eq ipment

— Part 2 : L w expa s io fam eq ipment

— Part 3 : Medium expa s io f am eq ipment

— Part 4: Hig ex pa s io fam eq ipment

— Part 5: Fixed c ompr s s ed air fameq ipment

— Part 6 : Vehicle mo nted c ompr s s ed air f am sys tems

Compr s ed air fo m sy st ems (CAFS) complying with this p rt of ISO 7 76 ar ins aled in or used

in conjunction with f ir -f ighting vehicles t o impro e the eff iciency of fir -extinguishing proc s es

Compr s ed air fo m sy st ems impro e the adhesion, penetration an r t ention time of the fir

-extinguishing ag ent on the burning mat erial, the eb trans e ring mor ene g , and impro ing the

co l ng efe t of the a pled fo m Thisis achieved b ad ing fo m conc ntrat es an compr s ed air, t o

be delve ed int o wat er u de pr s ur b the fir -fighting pump, t o the f ir

Compr s ed air fo m sy st ems g ene at e homog eneous fo m that inc eases the efe tive contact ar a

of the fo m on the burning mat erial, an impro es the ad esion and penetration of the fo m t o

non-horizontal surfac s of the burning mat erial, the eb inc easing the pe iod in w hich heat is efe tively

trans e r d

It is as umed that sy st ems defined in this p rt of ISO 7 76 wi l only be o e at ed b pro e ly trained

pe sonnel

F or CAFS t o be used at a t empe atur out ide this t empe atur rang e, the p rticular t empe atur rang e

should be spe if ied b the use an the man factur r should det ermine b a risk as es ment any ne d

for ad itional pr cautions

Fire protection — Foam fire ex ting uishing systems —

Part 6:

This p rt of ISO 7 76 spe if ies r q ir ment for compr s ed air fo m syst ems (CAFS) in w hich fo m

conc ntrat e an compr s ed air ar contin ously ad ed t o the wat er being discharg ed from the fir

-fighting pump This p rt of ISO 7 76 is a pl ca le t o CAFS that can be pe manently ins aled in fir

-fighting vehicles, transporta le, or mo i e

This part of ISO 7 7 6 spe if ies r q ir ment for CAFS w hich ar used at ambient t empe atur s ranging

from – 0°C t o +40 °C

This part of ISO 7 76 does not a ply t o s ationary CAFS

This p rt of ISO 7 76 doesnot a ply t o r q ir ment for hazards r lat ed t o han lng fo m conc ntrat es,

noise g ene at ed b CAFS, drives, auxi iary eq ipment, p wer sour es, or pumps con e t ed t o the CAFS

This part of ISO 7 76 does not spe ify r q ir ment for spe ial hazards arising from p rticular

con itions u de w hich CAFS ar used, for ex mple:

— immu ity a ains ele troma netic f ields an ele tros atic discharg e;

— o e ation without upe vision;

— event spe ific t o the location w he e the CAFS is set up (e.g on publ c ro ds);

— han lng of any eq ipment, devic s, et c w hich ha e t o be conne t ed t o the CAFS or ar joined t o it

(e.g branch pipes, noz les an pr s ur hoses);

— de ommis ioning an disp sal

2 Normati ve r eferences

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a pl es

ISO an IEC maintain t erminolo ical data ases for use in s an ardization at the folowing ad r s es:

— IEC Ele tro edia: a ai a le at ht p:/ www.ele tro edia.org

— ISO Onlne brow sing platorm: a aia le at ht p:/ www.iso.org o p

ISO 7 00, Gra hic al sy mb ls fr us e o eq ipment — R egi s te ed sy mb l s

ISO 1 1 0:2 1 , S fet y o machine y — G ene al princ iples fr des ig — Ri sk as ses s ment a d ri sk r duc tio

ISO 1 854, S fet y o machiner y — Minimum g ps to a oid c rushin o p rts o the h ma b dy

ISO 1 8 7, S fet y o machine y — S fet y di s ta c es to pr vent h z rd zones bein r ached b u pe a d

lowe lmbs

ISO 141 0, S fet y o machine y — Guards — G ene al r q ir ment fr the des ig a d c ons truc tio o fixed

a d mo a le g ards

ISO 1 3 3, Protec ti ve glo es fr fir fig te s — L b rator y tes t meth ds a d pe frma c e r q ir ments

IEC 6 06 -1, Env iro mental tes tin — Part 1: G ene al a d g ida c e

IEC 6 2 4-1, S fet y o machine y — Elec tric al eq ipment o machines — Part 1: G ene al r q ir ment

IEC 613 0- 2, S fet y o machine y — Indic atio , markin a d ac tu tio — Part 2 : R eq ir ments fr markin

3 Terms and definitions

F or the purp ses of this document, the t erms an def initions given in ISO 842 -4, ISO 1 943 an the

folowing a ply

3.1

air del very rate

v lume of air, in ambient con itions, that is fed int o the CAFSpe u it of time

Not e 1t o entry: T e me surement u its are L/min

3.2

compres ed air foam

mixtur of wat er, fo m conc ntrat e an compr s ed air

3.3

compres ed air foam delvery pres ure

pr s ur of compr s ed air fo m at he delve y outlet of the CAFS

Not e 1t o entry: T e me surement u its are MPa

3.4

compres ed air foam delvery rate

v lume of compr s ed air fo m at the delve y outlet of the CAFS, conve t ed at atmosphe ic pr s ur ,

sy st em in w hich a fo m conc ntrat e an air ar contin ously ad ed u de pr s ur t o the wat er being

discharg ed from a f ir -f ighting pump

proc s t o ensur that fo m pro ortioning sy st em as ociat ed pipework, t o the discharg e con e tion, is

adeq at ely cleaned of fo m conc ntrat e an solution t o a oid any damag e

E AMP E Proced re t o avoid damag e by cor osion

3.8

foam concentrate del very rate

v lume of fo m conc ntrat e fed int o CAFS pe u it of time

Not e 1t o entry: T e me surement u its are L/min

3 9

foam solution /air v lume ratio

r lationship between part of l q id (fo m solution) an air (at atmosphe ic pr s ur ) being mix ed

t og ethe in a CAFS mixing devic

Note 1t o entry: T e me surement u its are L/min

3.1

foam solutio del very rate

v lume of fo m solution delve ed pe unit oftime b a syst em

Note 1t o entry: T e me surement u its are L/min

Note 2 to entry: A t proportioning ratios of u t o 1 %, the diference b tween water delivery rate an fo m

solution delivery rate can b ne lected

3.1

o erating rang e

rang e (of con itions) spe ified b the man factur r of a sy st em an within w hich the CAFS can be

o e at ed without lmitations w hie achieving the int en ed pe formanc charact eris ics

3.12

pro ortio ing ratio

amou t of fo m conc ntrat e ad ed t o wat er given as a pe c ntag ein the fo m solution

3.13

water del very rate

v lume of wat er fed int o CAFSpe u it of time

Note 1t o entry: T e me surement u its are L/min

In orde t o comply with this p rt of ISO 7 76, the CAFS r pr sentative of normal man factur shal

me t the r q ir ment of Cla uses 4, 6 an 7, w hich shal be ve ified b visual inspe tion or engine ring

as es ment, shal be t est ed as desc ibed in Clause 5 and shal me t the r q ir ment of the t es s ( e

An ex A for guidanc on con ucting the as es ment )

It is r co niz d that minor v riations oc ur in the design of CAFS (e.g t o ensur compatibi ity with

multiple truck ty es) Whe e minor v riations oc ur an in the int er s s of e onomy, only one v riant

of each model ne d un e g o ty e as es ment The CAFS should un e g o new ty e as es ment w he e

a design chang e is lkely t o afe t a r q ir ment of this part of ISO 7 76 The ext ent of the r -as es ment

can be lmit ed, depen ing on the ty e of design chang e that hasbe n made t o the CAFS In al cases, the

man factur r should maintain a pro riat e documentation

4.1.2 Indi vidual as es ments

In ad ition t o the r q ir ment of 4.1.1, each CAFS prod c d b the man factur r shal me t the

r q ir ment of Ta le 1, w hich shal be ve if ied b visual inspe tion, engine ring as es ment or t es ,

an shal me t the r q ir ment of the t es s( e An ex A for guidanc on con ucting the as es ment )

Table 1 — Individual as es ment s hedule

n mbe

Proportioning ratio an fo m solution/air volume ratio 4.3.2.1

Maint enance of fo m solution/air volume ratio 4.3.2.7

4.2.2.1 Instalatio of CA FS o the vehicle

CAFS shal be so designed an cons ruct ed as t o be ins aled on the vehicle, in such a wa as t o pr vent

malfu ction, discon e tion, or damag e caused b vibration d ring o e ation of the vehicle

4.2.2.2 Moving parts

4.2.2.2.1 Pe son el shal be prote ted fr om injury b moving p rts d ring inspe tion, o er ation an

se vic Where a pl ca le, the folowing shal be pr ovided:

a) f ix ed guards as def ined in ISO 141 0, complying with the safety dis anc s def ined in ISO 1 8 7 ;

b) minimum clearanc at the end of a motion seq enc ac ording t o ISO 1 8 4

4.2.2.2.2 A cautionary notic shal be fitted to, or adjac nt o p rts that ar e ac es ed d ring inspe tion,

o eration an se vic an ma y cause injury

4.2.3 C mpo ents unde pr es ure

4.2.3.1 The max imum o er ation pres ur e whie using CA FS fr om the desig nated delve y outlet shal

not exc ed 1,0 MPa

NOTE Higher pres ures for specif ic ap lications might b a re d b tween user an a man facturer

4.2.3.2 A devic shal be pr ovided to r eleve the inte nal pr es ur e of the CA FS afe o eration

4.2.3.3 Pr evention of o e -pres urization shal be ensur ed

4.2.4 Material, par ts an c ompo ents

4.2.4.1 If wate can ac umulate in the air sys em, a means of r emoving it shal be pr ovided

4.2.4.2 Mate ial, p rt an comp nent shal be r esis ant to corr osion b the fo m conc ntr ate, fo m

solution and compr es ed air fo m

4.2.5 Hot par ts

4.2.5.1 Pe son el shal be pr ote ted fr om injury b hot p rt d ring inspe tion, o eration an se vic

( e ISO 1 7 2-1)

4.2.5.2 A cautionary notic shal be fitted to, or adjac nt to p rt that ar e ac es ed d ring inspe tion,

o er ation an se vic that ma y cause injury

4.2.6 Electrical eq ipment

4.2.6.1 Ele trical eq ipment hal me t he req irement of IEC 6 2 4-1

4.2.6.2 Desig n measur es shal be taken to pr ote t ele trical eq ipment fr om damag e b wate , fo m

conc ntrate, an fo m solution d ring fi ing of s orag e ves els and o eration

4.2.7 Operator c ontrols and indicator s

4.2.7.1 Controls an indicators used b the o erator during fir e-fighting actions shal be adeq ately

arrang ed an o er ated for the purp se of safety, visibi ty an easie o eration [r efe to ISO 9 3 -1,

ISO 9 35-2, ISO 9 3 -3 an IEC 6 3 0 (al p rt )]

4.2.7.2 Man al o erating eq ipment an othe contr ol element shal be easy to reach an to o erate

when wearing pr ote tive glo es for fir e-fighte s as spe ified in ISO 1 3 3 and without ha ving to a ply

exc s ive for ce

4.2.7.3 The n mbe of sw itching o erations shal be kept to a minimum an the contr ol element shal

be arr ang ed ac ording to the o erating seq enc , in such a man e that o er ating e r ors ar e minimiz d

4.2.8 System faiur e and c ontinuation of o -g oing fir e-fighting operatio

4.2.8.1 Safety-r elev nt faiur es in the CA FS shal be clear ly in icated

E AMP E Visual in icat or on the f ire-f ighting p mp operating panel, su ervision of control valves,etc

4.2.8.2 Even in case of faiur e regar ding inje tion of fo m conc ntrate and/ r compr es ed air, the CA FS

and the as ociated ins alation shal then r emain in a safe con ition to ensur e that furthe exting uishing

o eration with wate is maintained

4.2.9 Shutd wn c ontrol

The o e ating control s ation shal be eq ip ed with a control that e ves t o swit ch of the sy st em with

a single o e ating st ep

4.2.10 Maintenanc e and servic e

4.2.10.1 Each p rt of CA FS shal be easiy maintained an se vic d

4.2.10.2 Each part of CA FS which r eq ir es lubrication, such as bearing s or moving p rts shal be easiy

lubricated

4.2.11 Protectio against over-spe d

If ne es ary, the CAFS shal ha e a means of pr venting ma imum spe d being ex ce ded When the

sy st em is swit ched of, the f ir f ighting pump shal be usa le without r s rictions an with no use

int ervention

4.2.12 S fety from o er -he ting

A visual or au ible alarm shal activ t e w hen the t empe atur of air compr s or oi or t empe atur of

compr s ed air rises a ove a safe level det ermined b the man factur r

4.3 Perfor manc e

4.3.1 Operatio

4.3.1.1 CAFS shal be ca a le of 6 h contin ous o eration at he nominal compr es ed air fo m delve y

rate spe ified b the manufactur er

4.3.1.2 Adding fo m conc ntrate whie the CA FS is o erating shal not cause an inte ruption in

compres ed air fo m delve y

4.3.1.3 It shal be pos ible to drain, the CA FSof wate an fo m conc ntr ate

4.3.1.4 CAFS shal o erate at ambient temperatur e rang ing fr om – 0 °C to +40 °C

4.3.2 Propor tio ing ratio an foam solutio / ir v lume ratio

4.3.2.1 The pr oportioning ratio an fo m solution/ ir v lume ratio ma y be contin ously or

incr ementaly adjus a le

4.3.2.2 The method of setting an sele ting the prop rtioning ratio an fo m solution/ ir v lume ratio

shal be ag r eed betwe n use and man factur er

4.3.2.3 At nominal fo m solution delve y r ate, the achiev ble pr op rtioning r atio shal be not les

than 1 %

4.3.2.4 Acr os the r ang e of wate delve y rates, the pr op rtioning r atio shal be adjustable at leas

within the rang e 0,5 % to 1,0 %

4.3.2.5 The pr op rtioning ratio shal be automaticaly maintained within the r ang e − % to + 0 % of

the desig nated v lue, even when pr es ure or rate of compr es ed air fo m ma y chang e

4.3.2.6 At the nominal pr op rtioning ratio, the CA FS shal pr od c wet fo m within the compres ed

air fo m delve y rate lmits spe ified b theman factur er

NOTE Another specif ic req irement might b a re d b tween the user an the man facturer

4.3.2.7 The fo m solution/ ir v lume ratio shal be automaticaly maintained or easiy man aly

contr oled within ± 0 % of the desig nated v lue as g iven in the CA FS desc iption [se 7.2.3 c)]

4.3.3 Storag e ves els

4.3.3.1 Stor ag e ves els shal not leak or be ome defor med d ring transp rt , use, or when being r efi led

4.3.3.2 The q antity of fo m conc ntr ate in thes orag e ves el shal be a vaia le to the o erator

5.1 General

5.1.1 Atmospher ic c onditio s for tests

5.1.1.1 Unles othe wise s ated in a tes pr oc d re, con uct the tes ing afe the tes spe imen has

be n alowed to s a i z in the stan ar d atmosphe ic con itions for tes ing as spe ified in IEC 60 6

-1 as folows:

— t empe atur : (1 t o 3 )°C;

— r lative h midity:(2 t o 7 ) %;

— air pr s ur : ( 86 t o 1 6) k a

5.1.1.2 The temperatur e an h midity shal be substantialy cons ant for each envir onmental tes

wher e the standar d atmosphe ic con itions ar e a pled

5.1.2 Mo nting arrang ements

The spe imen shal be mount ed b it normal means of at achment in ac ordanc with the

man factur r’s ins ructions If these ins ructions desc ibe mor than one method of mounting, then

the method conside ed t o be mos u fa oura le shal be chosen for each t es

5.1.3 Operating c onditio s for tests

5.1.3.1 If a tes method r eq ir es that a spe imen beo erational, then the spe imen shal be con e ted

to suitable sup ly an monitoring eq ipment with characte istics as r eq ir ed b the man factur er’s

data Unles othe wise spe ified in the tes method, the sup ly p ramete s a pled to the spe imen shal

be set within the man facturer’s spe ified r ang e( ) an shal r emain subs antialy constant throughout

the tests The v lue chosen for each p ramete shal normaly be the nominal v lue or the mean of the

spe ified rang e

5.1.3.2 The detais of the sup ly an monitoring eq ipment used shal be g iven in the tes r eport; se

Clause 8

5.1.3.3 With the exc ption of fo m expansion ratio test, an in the inte es s of en vironmental

c onside ations an e onom y, wate may be used as a subs itute for fo m conc ntrate d r ing the othe tes s

5.1.4 Toleranc es

5.1.4.1 Unles othe wise stated, the toleranc s for the environmental tes p ramete s shal be as g iven

in the b sic r eferenc s an ar ds for the test , e.g IEC 6 0 8-1

5.1.4.2 If a req irement or tes proc d r e does not spe ify a toleranc or deviation lmit , then

deviation lmit of ± % shal be a pled

5.1.5 Provisio for tests

5.1.5.1 The spe imen is r eq ir ed to con uct the tes s as in icated in the tes sched le ( e 5.1.6)

5.1.5.2 The spe imen submited shal be repr esentative of the man factur er’s normal prod ction w ith

regar d to their cons ruction

5.1.6 Test s hed le

The spe imen shal be t est ed in the orde shown an ac ording t o the t es sched le in Ta le 2

Table 2— Test s hedule for CAFS

5.2.2.2 Operate the spe imen in ac or danc with the man factur er’s spe ification at the max imum

dischar g e v lume an pr oportioning ratio of 1 %

5.2.3 Me surements

5.2.3.1 Measur e the fo m solution delve y rate thr ough 1 min

NOTE Fo m solution delivery rat e can b calculated as sum of water delivery rat e an fo m concentrate

delivery rat e

5.2.3.2 Measur e the air delve y rate through 1 min