BRITISH STANDARD BS EN 12881 2 2005 +A1 2008 Conveyor belts — Fire simulation flammability testing — Part 2 Large scale fire test ICS 13 220 40; 53 040 20 ?? ??????? ??????? ??? ?????????? ?????? ?? ?[.]
Trang 112881- 2:2005
ICS 1 2 0.4 ;5 0 0.2
Confirme
Decemb r 20 9
Trang 2This Bri sh Stan ard was
published u der the authoriy
of the Stan ard s Policy an
Strateg y Commi e
on2 Fe ruary 2 0
© BSI 2 0
the text b tag s Tag s indicating chang es to CEN textcar y the n mber of the
CEN amendment For ex mple, textaltered b CEN amendmentA1 is
indicated b !"
The UK p rticip tion in its prep ration was entrusted to Tech ical Commit e
PRI/ 67, Conv ey or belts
A lst of org anizations represented on this commit e can be obtained on
request to its sec etary
This publcation do s not pur port to include al the neces ary pr ovisionsof a
contract User are responsible for its cor ect a plcation
Com pl anc with a British Standardcannot c nfer im m unity f om
legal obl gations
Amendm ents/c r ig enda is ued sinc publ cation
31 July20 8 Implementation of CEN amendment A1:20 8
Trang 3NORM E EU ROPÉENNE
Apri 2 0
En ls V ersion
Conveyor belt s - Fire simulat ion flammabi t y t est ing - Part 2:
Large sc ale fire t est
Co roie t ra s ort eu e - Es ais d simulatio
d'nflammatio - Part ie 2:Es ai a fe à gra d é h le
Förd rg rt e - Bra dt ec nis h Prüfu g n - Tei 2:
Bra d t re k en rüfu g
This Euro e n St an ard wa a prov ed b CEN o 21 Marc 2 0 a d in lu e A me dme t 1 a prov ed b CEN o 21 Fe ru ry 0 8
CEN memb rs are b u d to c mply with th CEN/ CENELEC Intern l R eg lat io s whic stip lat e t he c n itio s for giv in t his Euro e n
St an ard th st at us of a n tio al st an ard wit ho t a y lt erat io Up-to-d te lsts a d biblo ra hic l refere c s c n ernin s c n t io al
st an ard ma b o tain d o a plc tio to t he CEN Ma a eme t Ce t re or to a y CEN memb r
This Euro e n Sta d rd e ists in t hre oficial v ersio s (En ls , Fre c , Germa ).A v ersio in a y th r la g a e ma e b tra slatio
u d r th re p n ibi ty of a CEN memb r into its own la g a e a d n t ifie t o t he CEN Ma a eme t Ce t re h s th s me stat us a t he
oficial v ersio s
CEN memb rs are th n tio al st an ard b die of A ustria,Belgium, Bulg ria, Cy pru , Cz c R ep blc, De mark, Esto ia, Finla d,
Fra c , Germa y ,Gre c ,Hu g ry , Ic la d,Irela d, Italy , L tv ia, Lith a ia,L x mb urg, Malta, Net herla d , Norway , Pola d, Portu al
R oma ia, Slov akia,Slov enia,Sp in, Swe e , Swit zerla d a d Unit ed K in d m
E U ROPEA N COMMI TT E FO STA N DA RDI ZA TI ON
COMIT EUR PÉ N DE N RMALISATION
EU OPÄISCHES K MIT E FÜR NO MU G
Ma a eme t Ce tre: ru d Sta s rt, 3 B-10 0 Bru s ls
© 2 0 CEN All rig t s of e ploitatio in a y form a d b a y me n re erv ed
worldwid for CEN n t io al Memb rs
R ef No.EN 12 81 2:2 0 +A 1:2 0 : E
Trang 4Cont ent s p ge
Foreword .3
Int rod c on 4
1 Sco e 5
2 Norma v refere c s .5
3 Ap arat us .5
4 Prepara on 5
4.1 Te t pie e .5
4.2 Temperat ure before t he te t .5
4.3 Number of t est s .5
5 Proc d re .6
6 Int erpret at ion of re ult s 6
7 Te t report .6
An e ZA (informativ ) Relation hip betwe n t hisEuro e n Sta dard a d th Es e t i l R eq ireme t s of EU Direc v 9 /37/EC .9
An e ZB (informa v ) !R elation hip betwe n t his Euro e n Sta d rd a d th Es e t i l
R eq ireme t s of EU Dire t i e 2 0 /4 / EC" .10
Trang 5EN 12 81- 2:2 05 A1:2 0 (E)
Foreword
This doc ment (EN 12 81-2:2 0 +A 1:2 0 ) has b en pre ared by Tec nical Commit t ee CEN/TC18
“Con eyor b lt s”, t he secret ariat of w hic is held byBSI
This Euro e n St an ard s al b given t he st atu ofa nat ional st an ard, eit herby publcat ion of an ident ical
t ex t or by en orsemen at he latest by Oct ob r 2 0 , an conflctin nat ional st an ard s al b w it hdrawn at
t he lat est byOcto er2 0
This doc ment s p rsedes EN 12 81-2:2 0
This doc ment in lu es A men ment 1, a proved byCEN on 2 0 -0 -21
The st art an finis of t ex tint rod ced or alt ered by amen ment is in icat ed in t he t ex t by t ag !"
This Euro e n Stan ard has b en pre ared u der a man at e giv en t o CEN by the Euro e n Commis ion
an the Euro e n Fre Trade As ociat ion, an s p or t s es ent ial req irement s of EU Direct iv e(s)
!For relation hip w it h EU Directives, se informat iv e Annex es ZA an Z , whic are int egral p rt s of t his
doc men "
The ot her p rt of EN 12 81 is:
!EN 12 81-1+A1:2 0 ", C on e o r b lts – Fire s imu latio n flamma i ty testin – Part 1: Pro a e burn r
tes ts
Accordin t o t he CEN/CENELEC Internal R eg lat ion , t he national st an ard organization of t he folow in
cou t ries are b u d t o implement t his Euro e n St an ard: Au t ria, Belgium, Bulga a, Cypru , Cz ec
R epublc, Denmark, Est onia, Finlan , Fran e, German , Gre ce, Hu gary, Icelan , Irelan , It aly, L t via,
Lit huania, Lux emb urg, Malt a, Netherlan s, Nor way, Polan , Port ugal, R omania, Slov akia, Slov enia, Sp in,
Sweden, Sw itzerlan an the Unit ed K in dom
Trang 6Int roduct ion
The met hod of t estdes rib d in t his p rt of EN 12 81 is inten ed t o prov ide an in ication of the r eact ion of a
conv eyor b lt w hen ex posed t o a large fire The fire b in simulat ed is one not cau ed bya local he t source
but by mat erials arou d t he conv eyor b lt w hic cat ch fire folowin ex pos re to ot her he t sources At tention
is draw n to the fact t hat in as es in t he ov eral flamma i ty c aracterist ic of conv eyor b lt in for sp cific
in t alat ion , it is not s ficient t o rely solelyon an sin le met hod of t est but con ideration s ould also t o b
giv en t o the in ivid al sit e locat ion
Trang 7EN 12 81- 2:2 05 A1:2 0 (E)
This p rt of EN 12 81 des rib s a met hod of t est for t he as es ment of fire pro agat ion alon a conv eyor b lt
w hen t he b lt is ex posed t oa he t source
The folow in referen ed doc ment s are in isp n a le for t he a plcation of this Euro e n St an ard F r
dat ed referen es, only t he edition cited a ples For u dated r eferen es, t he latest edit ion of t he referen ed
doc ment in lu in an amen ment s) a ples
EN 6 5 4-1, Th rmo co u ple - Part 1: Refere ce ta le (IEC 60584 - 1: 1995)
ISO 313 , Woo d – D etermin tio n ofmois ture conte t fo r p ys ical a d mecha ical tes ts
3 Apparat us
3.1 Firegalery lned wit h fireclaybric s hav in a cros sect ional are of 8 m
2
an a len t h of at le st 7 m
The fuel in the fire o ject area s al b s p ort ed by four st eel arc es 1 m a art se Fig res 1a) an 1b)
3.2 Tre tle for p sitionin t he conv eyorb lt in t he fire galer yd r in t he t es The t rest le s al b 18 m lon
an 1,2 m wide hav in idlers w it h a pit ch of 1,5 m an a t rou hin an le of 3 °
3.3 Fireo je tcomprisin a) 2 0 k of airdried coniferou w ood in the form ofrou d timb r, hav in a
diamet er of 8 cm t o 12 cm an a len th of 1,2 m, c t in t he lon itu inal direct ion an havin moist ure cont ent
of (10 ± 2) % me s red asdes rib d in ISO313 ; an
b) 4 k of smalerwood pieces an w ood s av in s for ig it ion
(se Fig res1a) an 1b)
3.4 An momet er for me s rin t he air sp ed in t he fire galer yp sitioned 10 m in font of t he t est piece in
t he direct ion of t he air flow
3.5 R ow of th rmocouple , Typ K (Ni-Cr/Ni) ac ordin to EN 6 5 4-1, p sit ioned in t he lon itu inal
direct ion a ove the t est piece, a dist an e of a prox imat ely3 m fom e c ot her an 10 mm u der the ro fof
t he fire galer y (se Fig res 1a) an 1b)
4 Preparat ion
4.1 T estpie e
The t est piece s al b c t 18 m lon at ful b lt w idt h
4.2 T emperature before the test
The ambient t emp rat ure s al b b twe n 5 °C an 3 °C b fore t he t es
4.3 Number oftests
One t est s al b caried ou
Trang 8con id rat ion a d to t erminat e a y te t imme iately if at a y t ime it is con id re a vis ble to doso.
In t his re ard it is re omme d d t hat no te t s ould be s pervis d by onlyon person
In t al the t rest le (3.2) centralyalon t he lon it udinal ax is of t he fire galery (3.1) at a dist an e of 2 m fom
t he b gin in of t he galery in the direct ion of t he air flow (se Fig re 1a)
Place t he half rou d t imb r b tw een the galery w al an the st eel arc s p ort s eq aly dist ributed over the
t hre sp ces In the first w o sp ces place the 4 k of w ood for ig it ion on t he gr ou d ne r t he w al
L yt he t est piece cent raly in the lon itu inal dir ect ion on the t restle w it h t he b t t om cov er down s c t hata
13 m len t h of t he t est piece is b hin the fire o ject 3.3) in the direct ion of t he air flow (se Fig re 1a) Fix
b t h en s of t he test piece in t his p sition, en ur in t hat t he dist an e fom t he low est p int of t he test piece t o
t he ro f of t he galery is 1,5 m (se Fig re 1a) Position the thermocouples (3.5) in ac ordan e wit h Fig res
1a) an 1b)
Before st artin t he tes adju t t he air flow on t he fes air side t o 1,2 m/s Set he wood on b t h sidesof t he
galer yon fire an o serv et he ex t ent of the fire Me s re an record cont in ou lythe t emp rat ure at t he t est
piece an u der t he ro f, t he comp sit ion of t he gas an t he sp ed of t he air flow
6 Int erpret at ion of result s
At t he en of t he t est me s re t he fire pro agat ion at t he t est piece fom t he en of t he fire o ject in the
direct ion of t he air flow The t est piece s al hav e p s ed t he t est if t he fire has not pro agat ed more t han 10
m b hin t he fire o ject se Fig re 1a)
7 Testreport
The t est re ort s al in lu e t he folow in p rt ic lars:
a) referen e t o t his Euro e n St an ard, i.e !EN 12 81-2:2 0 +A1:2 0 ";
b) name of in t it ution caryin out he tes
c) name of b lt man fact urer;
d) des ript ion of t he conv eyorb lt, t aken fom t he prod ct st an ard or sp cification;
e) dist an e t hat t he fire has pr op gat ed (se Clau e 6);
f) dat e of t he tes
g) sig ature an name of p rson resp n ible for t he t es
h) an dev iat ion fom t his st an ard;
i) t he folow in stat emen "The t est res lt s relat e onlyto t he b hav iour of t he testpieces of a prod ct u der
t he p rt ic lar con ition of t es t hey are not inten ed t o b t he sole crit erion for as es in t he p t ent ial
fire hazard of t he prod ct in u e"
Trang 9EN 12 81- 2:2 05 A1:2 0 (E)
Dimen ion in met res
Toleran es± 0,0 m
a) Position of t he te t pie e a d fire o je t
Trang 10b) Fire g lery cros s ction
K ey
1 Co v ey or b lt /t est piec e
2 T imb r lnin
3 St eel arc hsu p rt
4 Susp nsio
5 T res e
6 Smal wo d, wo d sh v in s
7 Fire c la bricks
8 Fire o je t
9 Win ow
10 Fire g lery
1 Limit or fire pro a at io
T T hermo o ple
T y pe K (Ni-Cr/Ni) ac c ordin to EN 6 5 4-1
Figure 1 —Te t ar a g me t
Trang 11EN 12 81- 2:2 05 A1:2 0 (E)
Annex ZA
(informat ive)
R elat ionship betw een t his European Standard and t he Essent ial R equirement s of EU
Direct ive 98/37/ EC
This Euro e n Stan ard has b en pre ared u der a man at e giv en t o CEN by the Euro e n Commis ion
an the Euro e n Fre Trade Association t o provide one me n of conformin to Es ential R eq irement s of
t he New A ppro c Directive formac inery, 9 / 37/ EC, amen ed by Direct iv e 9 /79/EC
On e t his st an ard is cited in t he Oficial Jour nal of t he Euro e n Commu it ies u der t hat Direct iv e an has
b en implement ed as a nat ional st an ar d in at le st one Memb r St at e, complan e w it h the normat iv e
clau es of t his st an ard confers, within t he lmit s of t he s o e of t his st an ard, a pres mpt ion of conformity
w it h t he cor esp n in Es ent ial R eq irement
1.5.6 Fire
of t hat Direct iv e an as ociat ed EFTA reg lation
WAR NING — Ot her re uireme t s a d ot herEU Dire tiv s ma be applc ble to th prod ct (s) fal n
wit hin t he s o e of t his st and rd
Trang 12!R elat ionship between t his European St andard and the Essent ial R equirement s of
EU Direct ive 2006/42/EC
This Euro e n Stan ard has b en pre ared u der a man at e giv en t o CEN by the Euro e n Commis ion
an the Euro e n Fre Trade Association t o provide one me n of conformin to Es ential R eq irement s of
t he New A ppro c Directive formac iner y, 2 0 /42/ EC
On e t his st an ard is cited in t he Oficial Jour nal of t he Euro e n Commu it ies u der t hat Direct iv e an has
b en implement ed as a nat ional st an ar d in at le st one Memb r St at e, complan e w it h the normat iv e
clau es of t his st an ard confers, within t he lmit s of t he s o e of t his st an ard, a pres mpt ion of conformity
w it h Es ential R eq irements
1.5.6 Fire
of t hat Direct iv e an as ociat ed EFTA reg lation
WAR NING — Ot her req irement s an ot her EU Direct iv es may b a plca le to t he prod ct (s) fal n within
t he s o e of t his st an ard."
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