Tiêu chuẩn iso 06182 4 1993 scan

INTERNATIONAL STANDARD IS0 61 82 4 First edi tion 1 993 09 01 Fire protection Automatic sprinkler systems Part 4 Requi rements and test methods for quick opening devices Protection contre I ’ i ncendi[.]

Fir st edition

19 3-0 -01

Protection contre I’n en ie

- Sy t& mes d’ex tinc tion a utomatiq e d

typ spr i kler -

Pa t-tie 4: Presc ription et m& hodes d’es a i des disp sitifs i) ouv erture

ra pide

Referen e n mb r

Contents

Page

Sco e

1

Normativ e referen es

1

Definition

1

Req irements

2

Prod ction testin an q a lity c ontrol

3

Performan e tests

4

Markin

6

In truc tion c ha rts an trim

6

0 IS0 19 3

Al rig ts re erv ed No p a rt of this p ublc a tio may be repro u e or uti zd in an form or

by an mean , ele to ic or me ha nical in lu in ph to opyin an microfim, with ut per

mis io in writin fom th publs er

internatio a l Organiza tio for Stan a rdiza tio

Cas Po tale 5 l C -121 Get& e 2 l Switz rla nd

Foreword

IS0 (the Interna tiona l Orga nization for Stan a rdiza tion) is a worldwide

federa tion of na tiona l sta nda rd b dies (IS0 memb r b dies) T he work

of pre a rin Interna tiona l Stan ard is normaly ca rried out throu h IS0

whic a tec hnic a l commite has b en esta bls ed has the rig t to b

re resented on tha t commite Interna tiona l orga niza tion , gov ernmental

an non ov ernmental, in la ison with ISO , a lso ta ke pa rt in the work IS0

c ola bora tes c losely with the Interna tiona l Elec trotec hnic a l Commis ion

(IEC) on all ma tters of elec trotec hnic a l sta nda rdiza tion

Dra ft Interna tiona l Stan ard ado ted by the tec hnic a l commite s are

c irc ula ted to the memb r b dies for votin Publc a tion as an Interna tiona l

Stan ard req ires a pprov al by a t lea st 7 % of the memb r b dies c a stin

a v ote

Interna tiona l Stan ard IS0 618 -4 w as pre ared by Tec nica l Commite

ISO /T C 21, Eq ipment for fir e protec tion an fir e fig tin , Sub-Commite

SC 5, F ixed fir e extin uis in s stems

IS0 618 c on ists of the folowin pa rts, u der the general title F ire pro-

tec tion - Automatic sprinkler s stems:

- Part 1: Req irements an test method for sprinklers

- Part 2: Req irements an test method for wet alarm v a lv es, reta rd

- Part 3: Req irements an test method for dry pip v a lv es

- Part 4: Req irements an test method for q ick-o enin dev ic es

- Part 5: Req irements an test method for delu e v a lv es

Introduction

IS0 618 comprises sev era l pa rts pre ared by ISO /T C 21 cov erin com-

p nents for a utoma tic sprinklers s stems

IS0 618 is inc lu ed in a series of Interna tiona l Stan ard plan ed to

c ov er:

- carb n dioxide s stems (IS0 618 )

- explosion s p res ion s stems (IS.0 618 )

- fo m s stems (IS0 7 7 )

F ire protection - Automatic sprinkler systems -

This pa rt of IS0 618 sp c ifies the p rforman e an

testin req irements for q ick-o enin dev ices u ed

with dry pip v a lv es in fir e protec tion s stems to

hasten the o era tion of the v a lv es w hen one or more

sprinklers o era te T he q ick-o enin dev ic es inc lu e

a c celera tors an ex a usters for u e with sp ec ific dry

pip va lves

Al pres ure data in this pa rt of IS0 618 are giv en as

gau e pres ure in b r

throu h referen e in this tex t, c on titute prov ision

of this pa rt of IS0 618 At the time of publc a tion, the

edition in ic a ted w ere valid Al stan ard are s bjec t

to revision, an pa rties to agre ments b sed on this

pa rt of IS0 618 are en ouraged to inv estiga te the

p os ib ilty of a pply in the most recent edition of the

sta nda rd in ic a ted b low Memb rs of IEC an IS0

ma inta in registers of c urently valid Interna tiona l

Stan ard

joints are made on the thre d - Part I Desig a tion,

dimen ion an tolera nc es

IS0 3 :19 7, Rub er, v ulc a nized - Determination of

ten ie stres -s tr a in pro erties

IS0 4 :19 3, Ma llea ble c a st iron fitin s thre ded to

IS0 7 /l

IS0 18 :19 2, Rub er, v ulca nized - Ac elera ted

a gein or he t-esista nc e tests

IS0 8 8-l : 19 8,

Mec anical pro erties of fa steners

- Par 1: B olts, s rews an stu s

IS0 8 8-2:19 2,

- Part 2: Nuts

Co rse thre d

Mec anical pro erties of fa steners

with sp c ified pro f loa d v a lues -

IS0 618 -l :19 3, F ire protec tion - Automa tic sprin-

kler s stems - Pa rt 7: Req irements an test meth-

od for sp rinklers

3 Definitio s

For the purp ses of this pa rt of IS0 618 , the folow-

in definition a pply

3.1 a ccelera tor:

Quick-o enin dev ic e whic has-

ten the o eration of a dry pip v a lv e u in mec an-

pip work pres ure

3.2 a ntiflo din dev ic e: Dev ice inten ed to prohibit

ex es iv e water or other foreig ma tter from enterin

an relev a nt pa rt or pa rts of the q ick-o enin dev ice

where this mig t prev ent s bseq ent o era tion

r esistar it ma teria ls s a ll b either:

Corosion-

- bron e, bra ss, Monel meta l or a ustenitic sta inles

ste l, or eq iv a lent or

- pla stic s conformin with the req irements of 4.6

3.4 ex au ter: Quick-o enin dev ic e inten ed to

dis ha rge dry pip s stem a ir dir ec tly to atmosphere

to red ce v a lv e tr ip time

3.5 rated work in pres ure: Maximum serv ice

pres ure a t whic a q ick-o enin dev ic e is inten ed

to o era te

3.6 serv ice pres ure: S ta tic water pres ure a t the

inlet to a dry pip v a lv e w hen the q ic k-o enin de-

v ic e an the dry pip v a lve are in the re d c on ition

3.7 quick-o e in d v ice: Ac elera tor or ex au ter

as defined in 3.1 an 3.4 resp ec tively

s stem a ir pres ure whic actuates a q ick-o enin

dev ice up n a s fic ient ra te of los of s stem a ir

pres ure

When in the adju tment or o era tin c on ition, all

interna l comp nents of a q ick-o enin dev ice an an

a ntiflo din dev ic e inten ed to reta in s stem a ir

pres ure s all with ta nd a pneumatic pres ure of

7 b r for 1 min without lea ka ge w hen tested in a c-

cordan e with 6.4

4.3.3 If non-meta llc ma teria ls, other than ga sk ts

an pip sea ls, or metals with a meltin p int of les

tha n 8 0 “C (other than for pip jointin purp ses) are

u ed in the con truc tion of the b d of q ick-o enin

dev ic es an /or a ntiflo din dev ic es, with a con ection

to the dry pip v a lv e or s stem pip work in ex es

of 2 mm interna l dia meter, the as embled dev ic e

s all b s bjec ted to a fir e exp s re test in a ccord-

an e with 6.9 L ak age of water from the dev ice(s)

s all not ex e d comp ra le flow throu h a 2 mm

diameter o enin

4.4.1 Quick-o enin dev ic e b dies an cov ers s all

b made of a ma teria l hav in a c orosion resista nc e

at lea st eq iv a lent to c a st iron

4.4.2 T he dimen ion of all c on ection s all conform

to IS0 Interna tiona l Stan ard where these ex ist

Where this is not a ppro ria te, na tiona l sta nda rd may

4.4.3 T he normal desig loa d of an fa stener, neg-

lec tin the force req ired to compres the ga sk t

s a ll not ex e d the minimum ten ie stren th sp c i-

fied in IS0 8 8-l an IS0 8 8-2, w hen the v a lv e is

pres urized to 4 times the rated workin pres ure

T he are of a pplc a tion of pres ure s all b c a lc ula ted

a s folows:

Al pa rts of a q ick-o enin dev ic e an an a ntiflo din

dev ice s bjec t to workin pres ures s all with ta nd

a h drosta tic pres ure of twic e the rated workin

pres ure for 5 min, without ev iden e of lea kage or

p rmanent distortion when tested in ac ordan e with

6.5

a ) if a f ul fac e ga sk t is u ed, the are of force a -

p lic ation is tha t exten in out to a lne defined by

the in er ed e of the b lts;

b) if an “0’-in sea l or rin ga sk t is u ed, the are

of force a pplc a tion is tha t exten in out to the

c entrelne of the “Of-in or ga sk t

4.3 Materials

4.3.1 Al ma teria ls s all b s ita ble for their inten ed

a pplc a tion as determined in ac ordan e with 6.2 to

6.5 an 6.9

4.5.1 Where pra c tic a ble, the desig of an comp -

nent whic can b norma lly disas embled d rin ser

vic in s ould b s c tha t it can ot b re s embled

wron ly I s ould b p s ible to disas emble all pa rts

inten ed for field re lacement u in only to ls

norma lly employed by the tra de

4.3.2 T he s itab ilty of non-meta llc pa rts, ex lu in

ga sk ts an sea ls, s all b ev a lua ted on the ba sis of

- resista nc e to deteriora tion d e to a gein ;

- water a bsorption; an

- phy sic a l deteriora tion a ssoc ia ted with the a ov e

c on ition

in ac ordan e with 6.3.1 to 6.3.3 A dev ice with

comp nents aged in ac ordan e with 6.3.1 to 6.3.3

s bjec ted to the a ppro riate test in clau e 6 for tha t

4.5.2 Sprin s an dia hragms s a ll not fra cture or

rupture d rin 5 0 0 an 1 0 0 c y c les of normal o -

era tion resp c tiv ely , w hen tested in ac ordan e with

6.2

4.5.3 T here s all b no sig , on vis al exa mina tion,

of damage to the sea lin elements of the dev ice a fter

testin for the o era tiona l req irements of 4.10

4.5.4 Pres f it bu hin s s all conform to the a pro-

4.5.5 Where rota tion or sldin motion is req ired,

the pa rt an its b a rin s a ll b made of c orosion-

resista nt ma teria l

4.5.6 Any non-einforced ela stomer sea lin element

other than ga sk ts, s a ll have the folowin pro erties

when tested in ac ordan e with 6.3.3 an the a pro-

pria te c la uses of IS0 3 :

me s red 2 min a fter relea se; an

b) either:

1)

minimum ten ie stren th 10 b r (10 MPa)

2)

minimum ten ie stren th 15 b r (15 MPa)

(7 -t

1,5) “C an 2 b r (2,0 MPa)

c ) the ten ie stren th an ultima te elon a tion s all

erties of sp cimen whic hav e not b en he ted

grea ter than 5 ty pe A d rometer u its;

(9 ,5 f 2,5) “C for 7 h,

d) the ten ie stren th an ultima te elon a tion s all

in water an the c an e of v olume of the sp c i-

men s all not b grea ter than 2 %

4.5.7 A reinforc ed ela stomeric sea lin element (of

c la pp r, cla pp r as embly or sea t sea l) s all b ca a-

ble of b in flexed without c ra c kin or bre kin an

s a ll hav e a c an e in v olumetric expa nsion not

grea ter than 2 % when tested in ac ordan e with

6.3.3

ga sk ts an sea ls)

4.6.1 Afer a gein of its non-meta llc pa rts as de-

sc rib d in 6.3.1 an 6.3.2, a q ick-o enin dev ic e s all

me t the req irements of 4.9 w hen tested in a ccord-

an e with 6.5 an 6.6

Se arate samples s all b u ed w hen testin in a c-

4.6.2 T here s a ll b no wa rpin , cre p or other sig s

of deteriora tion whic may preclu e the pro er o er

a tion of the dev ic e T here s all b no cra ckin of an

comp nent

4.7 Cle ra ces

Cle ran es s all b prov ided b twe n mov in pa rts

an b twe n sta tiona ry an mov in pa rts so tha t

corosion or de osits of foreig mater within an a s-

sembly wi not ren er a q ick-o enin dev ice slu -

gis or ino era tiv e

4.8 Protectio of orific es

Orific es s all b protected from c log in an , w hen

tested in ac ordan e with 6.7, de ris s all not pa ss

throu h an a ntiflo din dev ic e, if prov ided

A con ection s a ll b prov ided to the up er c amb r

(holdin c amb r) of a q ick-o enin dev ic e for a

s ita ble pres ure gau e whic wi faciltate the de-

tec tion of a clog ed pres ure-eq a lizin orific e

4.10 Operatio

A q ick-o enin dev ic e s all o erate a sp c ific dry

pip v a lv e w hen the ra te of s stem air pres ure dro

ex e d a sp ec ific ra te as a res lt of the o era tion of

one or more sprinklers, a t all water s p ly pres ures

therefore ha stenin the o era tin time of the dry pip

v a lv e as v erified by testin in ac ordan e with 6.6

4.1 Ma intain bi ty

A q ick-o enin dev ic e (an its a ssocia ted a ntiflo d-

in comp nent if prov ided) s all b desig ed to p r

sp c ia l to ls whic s a ll b demon trated by testin

in ac ordan e with 6.7

4.12 Equi brium time

I s all b esta bls ed tha t the dev ice do s not ex e d

the c r iter ia sp c ified in 6.8

I s a ll b the r esp n ibi ty of the man facturer to

implement a q a lity c ontrol programme to en ure tha t

his prod ction contin ou ly me ts the req irements

of this p rt of IS0 618 in the same man er as the

or i ina lly tested sa mples

Ev ery q ick-o enin dev ic e man factured s all pa ss

Ev ery q ick-o enin dev ic e man factured s all pa ss

a test of o era tion whic ver ifies corec t fu ction with

the res lts recorded a ga in t e c q ick-o enin de-

vic e ser ial n mb r

Re resenta tiv e samples of e c q ick-o enin dev ice

s all b s bjected to the tests des rib d in these re-

q irements

Se 4.5.2

ployed in a q ick-o enin dev ice to 5 0 0 an 1 0 0

cy c les resp c tiv ely of normal o era tion T he tests

s all b con u ted a t a ra te not ex e din 6 c y c les

p r min

c mpo ents (ex lu in ga sk ts an sea ls)

Age four samples of e c comp nent in an a ir ov en

a t (12 f 2) “C for 18 da ys Sup ort the comp -

nents so tha t they do not tou h e c other or the

sides of the ov en Remove the samples from the

ov en an a llow to c ool in air a t (2 f 2) “C an rela -

tive h midity (5 f 5) % for not les than 2 h b fore

c a rryin out an test me s rement or exa mina tion

If a ma teria l can ot with tan the temp rature in i-

ca ted without ex es iv e sofenin , distortion or dete-

r iora tion, ca rry out an a irov en agein test a t a lower

temp rature (but not les tha n 7 “C) for a lon er p -

riod of time C a lc la te the d ra tion of exp s re D, in

da y s, from

D = 737 0 0 es *o6g 3

where t is the test temp rature, in degre s C elsiu

NOT 1 This eq ation is b sed on the 10 “C r ule, ie for

ev ery 10 “C r i e, the ra te of a c emica l rea ction is a pproxi-

mately doubled When a ppled to p la stic agein , it is as-

s med tha t the lf e a t a temp rature, t in degre s C elsiu ,

is half the lfe a t (t- 10) in degre s C elsiu

Examine the comp nent for c ra c kin an wa rpin ,

cre p or other sig s of deteriora tion whic can pre-

clu e the pro er o eration of the dev ic e

6.3.2 Warm water agein for n n-meta llc

ter a t (8 f 2) “C for 18 da y s For pa rts whic are

oc c a siona lly exp sed to water w hen the dev ic e o er

ates, the test s all b con u ted for a d ra tion of only

14 da y s Remove from the water an a llow to c ool to

ro m temp rature for exa mina tion

If a ma teria l can ot with ta nd the temp rature in i-

c a ted without ex es iv e sofenin , distortion or dete-

riora tion, ca rry out a water agein test a t a lower

temp rature (but not les tha n 7 “C) for a lon er p -

riod of time C a lc la te th d ra tion of exp s re D, in

da ys, from:

D = 7 8 7 emo o3r g

where t is the test temp rature, in degre s C elsiu

Examine the comp nent for c ra c kin an warpin ,

cre p or other sig s of deteriora tion whic may pre-

clu e the pro er o era tion of the dev ic e

6.3.3 Ela stomeric sea lin element tests

6.3.3.1 Reinforced elastomeric sea lin element

test

Se 4.5.7

Me s re the v olume of 12 reinforced elastomer sea l-

samples to an atmosphere of ox gen a t a pres ure

of 2 b r for 9 h a t 7 “C Submerge the rema inin

s ix samples in b i n disti ed water for 7 h; remove

the samples an a llow to co l to ro m temp rature

Me s re the v olume of e c sample b fore b n in

e c throu h an a rc of 18 ” thre times

6.3.3.2 No -reinforced elastomeric se l n

element test

Se 4.5.6

IS0 3 Use four to satisfy the test req irements in

either 4.5.6 b) 1) or 4.5.6 b) 2) an four to satisfy e c

of the test req irements in 4.5.6 a ), 4.5.6 c ) an 4.5.6

d)

6.4 Pn umatic sta tic pres ure

T he q ick-o enin dev ic e s all hav e al externa l pa rts

dev ic e to b pres urized pneuma tic a lly a t 7 b r for

1 min T he dev ice s a ll b as es ed in ac ordan e

with 4.1

T here s all b a con ection for hy drosta tic a lly pres-

ventin the a ir an pres urizin fluid T he dev ic e s all

b hy drosta tic a lly pres urized inter nally to twice the

rated workin pres ure, but not les than 2 b r for

a p riod of 5 min T he dev ice s all b a sses ed in

a ccordan e with 4.2

T he tests are to b con u ted with water pres ures

of 1,4 ba r, 3 b r an then further in rements of 3 b r

u ti the ra ted workin pres ure is re c ed Initial a ir

pres ure in e c test is to b set a t a v a lue of

1.4 b r plu one fifh of the initial water pres ure or

the man facturers recommen ed air pres ure whic -

ev er is the hig er In no ca se, howev er, s a ll the initial

a ir pres ure ex e d water pres ure At e c pres ure

in rement relea se a ir from the s stem pipin in a c-

cordan e with the decay c rv e of fig re 1 T he a ir

pres ure ta nk uti zed s all hav e a c a pa c ity of a t lea st

1 0 0 I T he time b tween the start of a ir rele se an

the o enin of the dry pip v a lv e s a ll not ex e d

3 A n orifice with a K factor of 8 in combin tio with a

6 0 0 I c a pa city a ir pres ure ta nk wi prod ce a c rv e

e uiva le t to figure 1 For K fa ctor, se IS0 618 -I

4

-No o erotio alowed

wh n pres ure

-O peratio alowed

a ratio re uire

pres ure in the 1.4 b r tests, then the time b tween

re chin 1 b r air pres ure an the trip in of the dry pip

s a ll not ex e d 5 s

Re e t e c test four times In all tests, de ris s a ll

not p s throu h the a ntiflo din dev ice, if prov ided

If an a ntiflo din dev ic e is prov ided, the q ick-o enin

dev ice s all not b cle ned or a dju ted b twe n

tests I s a ll b p rmited to remove de ris from the

entran e to the a ntiflo din dev ice b twe n tests or,

if no a ntiflo din dev ice is prov ided, from the q ic k-

o enin dev ice

Place 3 cm3 of orga nic mater, s c as s nflower

8 mm wide a t the la rge en by 5 mm thic k, in the

pipin of a q ick-o enin dev ice to simula te lo sened

de ris makin its way throu h the s stem d rin o -

era tion of the dry pip v a lv e a t 7 b r water pres ure

Re e t a ove tests u in 6 cm3 of w ooden to thpic k

3 mm in diameter, into a pproximately 3 mm len th

T ime (s) -

F ig re 1

6.8 Equi brium time test

Subject a q ick-o enin dev ic e an a ntiflo din de-

vic e, if se a ra te, hav in a restric ted or ific e an holdin

c amb r, to a con ta nt air pres ure of 3.5 ba r Afer

3,5 b r a ir is a dmited to the inlet of the test sample,

the time to esta bls a pres ure of 2 b r in the

Se 4.12

6.9 F ire exp s re test

Mou t the q ick-o enin dev ic e with fitin s

min

an

sea ls, etc but with the b d o enin s se led an the

dev ice primed with water as if it were in an o era tin

c on ition

Position a fir e tr a y , of s rface are not les than

1 m2, c entrally b ne th the dev ic e Pla ce a s fic ient

v olume of a s ita ble fuel in the tra y to giv e an av erage

a ir temp rature of b twe n 8 0 “C an 9 0 “C arou d

the dev ice for a p riod of 15 min a fter the temp ra-

ture of 8 0 “C is re c ed

itioned IO mm from the s rfa ce of the dev ic e

Ig ite ,he fuel a nd, a fter 15 min remove the fir e tra y

or extin uis the fir e Co l the dev ice by immersin

in water

Check tha t the as embly o erates fre ly an fuly an

IS ~ the dev ice to an interna l hy drosta tic pres ure of

t t ii the workin pres ure

Gaskets an sea ls may b re la c ed

vic e, if se arate s a ll b mark ed with:

a ) the name or trademark of the man facturer or

v en or;

b)

cl

d)

e)

the distinctive model n mb r, ca talog e desig-

na tion or the eq iv a lent

the ra ted workin pres ure;

the direc tion of flow in ic a ted by an arow or the

word “inlet” an “outlet”;

the ser ia l n mb r or ye r of man facture; dev ic es

prod ced in the last thre month of a calen a r

ye r mayb mark ed with the folowin yea r as the

date of ma nufa cture Dev ices prod ced in the fir st

six month of a ca len ar ye r may b marked with

the prev iou ye r a s the date of man facture

7.2 T he markin s req ired in 7.1 s all b in lu ed

on the dev ic e in the form of leter s an fig res a t lea st

4,8 mm hig an prefera bly c a st or pres ed

7.3 I a man fcturer prod ces q ick-o enin dev ices

an a ntiflo din dev ic es, if se a rate, a t more than one

fa c tory , e c dev ic e s all hav e a distinc tive markin

by whic the prod ct may b identified as the prod ct

of a pa rtic ula r fa c tory

8.1 In truc tion s all b s p led with e c dev ic e

T he in truc tion s a ll in lu e an i u tr ation s owin

the v alv e trim an cros -sec tion as embly v iews to

expla in o era tion

8.2 T he in truc tion s a ll inc lu e recommen ation

for ca re an maintenan e an s all detail the method

for setin the dev ice an c lea nin of an de ris

8.3 Prov ision s all b made in the q ick-o enin

dev ice trim for isolatin the dev ice in order tha t re-

pa irs can b made without elmina tin sprinkler sy s-

tem pr otec tion