危险的英文

危险的英文

-

2023年2月12日发(作者：)

IMDG危险品规范英文(doc15

页)

Page2

Seminarfor

CarriageofDangerousGoods

05July2002

GLASEABusan

BriefInstruction

Page3

Thereisatremendousvarietyofdangerouscargoesbeingcarriedonseagoingships,tosome

ousgoodsaremainlymineraloilsandproductsofthe

chemicalindustrywhichmayrepresentadangerforthecrew,s

beentakenaccountbytheIMOintheinternationalConventionfortheSafetyofLifeatSea,SOLAS.

ThecarriageofdangerousgoodsingeneralisdealtwithinSOLASChapterVII,coveringchemical

tankersinPartB,gascarriersinPartCandthecarriageofdangerousgoodsinpackagedformorin

solicforminbulkiscontainedinPartA.

PartAofSOLASChapterVIIcontainsgeneralrequirementscoveringmainlyoperationalaspects

andappliestoallships,includingcargoshipesoflessthan500grosstons,carryingdangerous

fSOLASChapterVIIisthelegalbaseforthe“InternationalMaritimeDangerous

GoodsCode“(IMDGCode)andthe“CodeofSafetyPracticeforSolidBulkCargoes“(BCCode).

Therecodescontainthespecificrequirementswithregardtopacking,labelling,stowage,

segregationandotheroperationalaspects.

InRegulation2ofSOLASChapterVII,PartAdangerousgoodsareclassifiedaccordingtotheir

specificproperties:

Class1Explosive

Class2.1FlammableGases

Class2.2Non-flammableGases

Class2.3PoisonousGases

Class3.1/3.2Flammableliquidswithflashpointof23Candbelow

Class3.3Flammableliquidswithflashpointabove23Cupto61C

Class4.1Flammablesolids

Class4.2Substancesliabletospontaneouscombustion

Class4.3Substances,which,incontactwithwater,emitflammablegases

Class5.1Oxidizingsubstances

Class5.2Organicsubstances

Class6.1Toxicsubstances

Class6.2Infectioussubstances

Class7Radioactivematerials

Class8Corrosives(liquidsandsolidforms)

Class9Miscellaneousdangeroussubstancesandarticles

Forthedetailsoftheclassificationofthedangerousgoods,refertoIMGDCodePara.5asattached.

Dangeroussubstancesinpackagedformaretobeshippedinapprovedpackagingsasspecifiedin

theIMDGcodeforeachsubstanceindividually,includingalimitationofthefillingcapacity.

Commonpackagingsareboxes,drums,arcelledgoodsareeitherbe

towedintankcontainers,

notethatbulkcargoesmean

cargoeswhichareintendedtobetransportedwithoutanyintermediateformofcontainmentinbulk

packagingsorportabletanks.

Page4

Stowagerequirementsspecify,amongotherthings,restrictionsrelatedtothedistancetoliving

quartersandtoengineroomboundaries,orwhetherondeckorunderdeckstowageispermittedor

stowageonpassengerships.

Segregationisrequiredforincompatiblegoodslikesubstances,whichstowedtogether,presenta

riskforunduehazardsincaseofleakageorspillage.

RegulationsandProvision

SOLASII-2,Reg.54Specificrequirementsforshipscarryingdangerousgoods

Theseregulationsspecifytherequiredinstallationsandequipmentinthe

cargospacesfortheindividualcargoes

SOLASVII,PartACarriageofdangerousgoodsinpackagedformorinsolidforminbulk.

l

informationregardingpackaging,marking,labelling,documentsand

stowage.

IMDGCodeInternationalMaritimeDangerousGoodsCode

Specificprovisionsforeachindividualcargowithrespecttopacking,

boardifgoodsin

packagedformarecarried.

BCCodeCodeofSafePracticeforSolidBulkCargoes

Specificprovisionsforeachindividualcargowithrespecttostowageand

boardifbuldkcargopesare

carried.

INFCodeCodeforthesafecarriageofirradiatednuclearfuel,plutoniymandhigh-level

1,INF2,INF-3dependenton

thetotalradioactivequantity.

Class7,notcoveredbySOLASII-2,Reg.54.

Asindicatedinthelistofclassessomegoodsaredangerousonaccountoftheirfeatures(e.g.

explosiveorpoisonousproducts).Othergoodsconstituteahazardduringthetransportiftheyget

intouchwithothermaterialsandtherebyachemeicalreactioniscaused,pmentof

ore,thecargospacesconcernedhavetobe

providedwiththefireprotectionandsafetysystemsdependentontheschemeofthecarriageof

dangerousgoodsasspecififiedonSOLASChapterII-2,Regualtion54inordertocopewith

dangeroussituationswhichmayevolve.

ItshouldbenotedthatashipneednottocomplywithalltherequirementsindicatedintheSOLAS

II-2,ssesofdangerousgoodswhichmaybecarriedandpossiblerestrictions

areascertainedonthebasisofthearrangementsandequipmentprovidedforeachspaceandsuch

statedinthe“DocumentofCompliancefortheCarriageofDangerousGoods(DangerousGoods

Certificate)“.

Asattached,ourRulesChapter2,Section12,Thetables12.7and12.8areusedtodeterminethe

requirementstobefulfilledforparticularclassesofdangerousgoodstobecarriedinaparticular

typeofcargospace.

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SpecificRequirementsfortheCarriageofDangerousGoods

GeneralinformationregardingtheapplicationoftheSpecialRequirementsofRegulation54ofSOLASII-2

accordingtothescopeofdangerousgoodstobecarried.

Thescopeofdangerousgoods,whichmaybecarried,dependsonthevessel’soutfitting.

ortofDangerousGoods(D.G.)inpackageform

aged

formshallbecarriedinacargohold:

goholdstobefittedwithafixedfireextinguishingsystem

(conventional/container/bulkcargospaces:CO2system)

specialcategoryspaces,openro/rospacesandalike:watersprayingsystem

ateavailabilityofwaterforfirefightingbyremotestartofthefirepumpsfromthe

wheelhouse

tstobearrangedsuchthatanypartoftheemptycargospacecanbereachedwith

hejetsshallbesuppliedviasinglelengthofhose

each,quirementappliesalsotothe

cargoweatherdeckdesignatedforthestowageofD.G.

edfiredetectionsystemforthecargoholds(incaseofclass1onweatherdeckalso

applicabletothecargoholdbeneath)

tsofchemicalprotectiveclothing

staterequirements1,but

notlessthantwo

onaldrypowderfireextinguisherstotal12kgperhold(notrequiredincontainercargo

holds,butalsoforweatherdeckstowage)

Withforegoingequipmentthefollowingmaybecarriedinthecargohold(s):

IMOClassRestrictions

2.2none

3.3none

4.1exceptsubstancesforwhichtheIMDGcodestipulates\"stowageina

mechanicallyventilatedspace\"

rGermanflag.

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4.2exceptsubstancesforwhichtheIMDGcodestipulates\"stowageina

mechanicallyventilatedspace

5.1exceptsubstancesforwhichtheIMDGcodestipulates\"stowageina

mechanicallyventilatedspace\"

6.1exceptliquidsandexceptsubstancesforwhichtheIMDGcode

stipulates\"stowageinamechanicallyventilatedspace\"

8exceptliquidswithflashpoint61°C

9exceptsubstancesforwhichtheIMDGcodestipulates\"stowageina

mechanicallyventilatedspace\"

Providedadditionaldrypowderfireextinguishersoftotal12kgareavailablededicatedtothe

arriedonweatherdeck.

carriageofflammablegases(class2.1),toxicgases(class2.3),substancesofIMO

class4.3,liquidsofclass6and8withflashpoint61°C,butabove23°Candforthe

carriageofthosegoodsforwhichtheIMDGcoderequires\"stowageinamechanically

ventilatedspace\",thecargoholdistobeprovidedwithmechanicalexhaustventilationgiving

6airchangesperhourbasedontheemptyhold.

ThisappliesalsotogoodsofIMOclasses4.1,4.2and5.1ifstowageinamechanically

ventilatedspaceisstipulatedintheIMDGcode.

Theventilationductsshallbearrangedsuchthatapproximately1/3oftheairvolumeis

removedfromtheupperand2/3lowerpartofthecargohold.

Theventilationmaybereducedtotwoairchangesperhourincaseofcontainercargospaces

andifthesegoodsarecarriedinclosedfreightcontainers.

Theinlet(ifsupplyfansareprovided)andoutletventilationopeningsaretobefittedwithwire

meshguardsnotexceeding13mmmeshtopreventforeignobjectsfromenteringintothe

fancasing.

-proofelectricalequipmentofexplosiongroupIIB,

temperatureclassT4andgradeofprotectionIP55,alsotheflammablegases(class2.1)with

theexceptionofHydrogenandmixturesthereofmaybecarriedinthehold.

Itshouldbenotedthatallelectricalequipmentcomingintocontactwithholdatmospherehas

tomeetthisrequirement(lighting,firedetectionsystem,ventilatorsetc.).

ThecarriagealsoofHydrogenandmixturesthereofwouldrequireex-proofinstallationofIIC

T4.

ngoranyotherelectrical

equipment,unlessrequiredbytheRegulationsorinconnectionwiththetransportofD.G.,

maybeisolatedduringthetransportofgoodsrequiringex-proofelectricalequipment.

ntilationaccordingto8.,dditionalfixed

,theclasses3.1,3.2,6.1and8maybecarried

withoutrestrictions.

ofIMO-class1,except1.4.S,thefollowingwouldhavetobeprovidedinadditionto

thebasicrequirementsasperitems1.-10:

–electricalequipmentofatleastIIBT5,IP65(onlyforgoodsliabletoemitexplosivedustor

vapour)

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–watersprayingsystemforthepartwhereclass1istobestowed(5litres/m2∙min)

–amachineryspacebulkheadadjoiningthecargoholdistobeinsulatedtoA-60standard.

goholdadjoiningthemachineryspacevariousIMOclasseshavetobestowed3m

awayfromthemachineryspacebulkhead,ails

quirement,however,isnotapplicabletocontainercargo

holds.

IncaseofIMOclass1(except1.4.S)however,theA-60fireprotectioninsulationis

tion,these

goodshavetobestowed3mawayfromthemachineryspacebulkhead.

:IMO-class5.2neverispermittedtobecarriedinaholdregardlessofanyequipment

b-classisallowedondeckonly.

geofcontainersonNon-weathertightHatchcovers

Withregardtothecarriageofcontainersonnon-weathertighthatchcovers,potential

hazardshavebeenidentifiedincaseofdangerousgoodsofwhichleakedliquidsmayenter

intothecontainercargoholdandfordangerousgoodsforwhichtheIMDGcoderequires

“ondeckstowage”only.

Fornewbuildingsintendedforthecarriagecontainersonnon-weathertighthatchcovers

withgaps,followingsshallbeobserved:

64

Fromthecarriageofdangerousgoodspointofview,hemainitemsare:

-thegapsshallnotexceed50mm

-tominimisetheentryofleakedliquidsintothecontainercargohold,effective

provisions(bars)shallbeprovidedinwayofthegaps

-therequirementCO2quantityforthecargoholdistobeincreasedbyatleast10%

rdancewithinterpretation,para9ofLL64neednottobeobservedunder

followingconditions:

eofcontainersonthehatchcoversinsidethegutterbars,t

bridgingthegaps:nofurtherrequirement

eofcontainersabovegaps,gingthegaps:

Additionaldrainagerecess,edlabyrintharrangement,shallbe

providedbetweenthehatchcovers.

dofventilation

(exhaustoroverpressureventilation)shouldbeselectedasfollows:

tainercargoholdsfittedwithcertifiedsafeelectricalequipmentofat

leastIIBT4IP55andventilationgivingatleast2airchangesperhour,GL

recommendsmechanicalventilationofexhausttypewhichwedeemmore

effectiveincaseofleakageofdangerousgoodsfromcontainersstowed

anygasesorvapourfromthe“ondeckonly”cargo

bedrawnintotheholditwillbedilutedsufficientlysothattogetherwiththe

forementionedstandardofelectricalprotectionthereshouldbenoriskof

ignition.

essureventilationofthecargoholdsbeneathshouldberequiredonly

ifthecargoholdsarenotequippedforthecarriageofflammablegasesand

liquidswithflashpointbelow23C(ifiedsafe

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electricalequipment).Anairchangerateofatleast2/hrshallbeprovided

andcontinuousventilationshouldbemaintainedthroughouttheholdsif

suchcargoesarestowedonthehatches.

FordetailsregardingtheindividualrequirementspleaserefertotheRules.

ortofSolidDangerousGoodsinBulk

thefollowingistobe

applied:

edwithequipmentasperitems1.,2.,3.,6.,thefollowingclassescanbecarriedin

bulk:

5.11,6.1,8and92

ails

pleaserefertotheRules.

.

2

systemmaybeexemptedonapplicationincaseofbulkcargoeswhichare

non-combustibleoroflowfireriskorforwhichCO

2

isdeemedtobeineffective(IMO

MSC/Circ.671).

4.12inbulkwouldrequireelectricalequipmentofatleastIP55,e

temperature200°Cor

T3,IP55(sulphurT4,IP55).

ss4.21inbulkonlyforsomegoodstheelectricalequipmentmustbeofatleastIIAT2,

IP55.

ss4.31inbulkfollowingrequirementsshallbecompliedwith:

-TheelectricalequipmentmustbeofatleastIICT1(ferrosilicon),othergoodsofthis

class

requireIICT2.

-Theventilationmustconsistofatleast2independentfanswithasillheightsuchthat

weathertightclosureneednotbeprovidedinaccordancewithILLC.

-10ofparaA.

-TwoportablegasmeasuringapparatusforquantitativemeasuringofPhosphineand

Arsinearetobeprovided.

-Specialflagstaterequirementsmayhavetobeobservedforthecarriageofclass4.3in

ofGermanflagafull-scaleseparatebilgesystemistobeprovidedfor

breathingapparatussparechargesof9600litreseacharerequired.

ailsofdesignpleaserefertotheRules.

obesubmittedbytheshipyard(F236/F184)

1SeparationtoengineroombulkheadinaccordancewithBCcode.

2Inacargoholdadjoiningamachineryspacestowageatleast3mawayfromengineroombulkhead,unlessitisinsulatedtoA-60standard.

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a.)TheformsF236shallbecompletedbytheshipyardandtobesubmittedtoourMachinery

DepartmenttogetherwithaGeneralArrangementDrawinginordertoprovideinformation

regardingthetypeofcargospaces,thehatchcovers(weathertight,ornon-weathertightwith

gaps)andthescopeofIMOclassesintendedtobecarried.

b.)TheformsF184shallbecompletedbytheshipyardandtobesubmittedtoourElectrical

ueoftheDocument

ofCompliancefortheCarriageofDangerousGoodsanapprovedformisrequired.

ntofCompliancefortheCarriageofDangerousGoods

ThedocumentofcompliancewillbeissuedbyGLformostoftheflagstatesuponaspecialsurvey

rmF235forinitialsurveysandFormF237forrenewalsurveys.

essary

surveyshoweverwillbeperformedbyGL,whowillinitiatetheissueofthedocumentbySee-BG.

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ExplosionProtectionofElectricalEquipmentfortheCarriageof

DangerousGoods

ction

Duringthepastfewyearstransportsofdangerousgoodsonboardshipshaveincreased

substantially,asasaresultofwhichinstallatioansenablingsuchtransportstobeeffectedsafely

heessentialmeasures

egeneralobjectivesdefineditcan

bededucedthatinparticularthefollowingitemshavetoobserved.

1.1Definitionofareassubjecttoexplosionhazard

1.2Adaptationofexplosionprotectiontothedangerousgoodstobecarried(explosiongroup,

temperatureclass).

1.3Definitionofrestrictionsfordisconnectionofnon-explosionprotectedequipment.

Equipmentprovidedforensuringthesafetyofcrewandshipandforthecarriageof

dangerousgoodsmustbenotdisconnected.

BoththeIEC/TC18andIACSWP/ELhavepreparedrelevantregulations,whichhavebeenduly

consideredinGermanischerLlyod’sRules.

ubjecttoexplosionhazard(comparabletozone1)

Hazardousareashavebeensubdividedintoareassubjecttoexplosionhazard(comparabletozone

1)andextendedhazardousareas(comparabletozone2),dependingontheprobabilityof

occurrenceofanatmosphereindangerousquantity.

Asamatterofprinciple,cargoholdsinwhichdangerousgoodsarecarried,aswellasthepertinent

ventilationductsandenclosedorsemi-enclosedspaceswithdirect,non-closableopeningsto

thesespaces,areareassubjecttoexplosionhazard.

Adistinctionhastobemadebetween

2.1explosivesubstancesinpackagedformconformingtoclass1,exceptforgoodsindivision

1.4,compatibilitygroupS.

2.2solidgoodsinbulk,whichmaydevelopdangerousdustonly,and

2.3flammableliquidswithaflashpointbelow23Cinpackagedform,flammablegasesor

highlydangerousbulkcargoes,whichundercertainconditionsdevelopapotentially

explosivegasatmosphere.

Itisassumedthatintheeventoffailure,tothepackaginganddischargeofaliquid

withaflashpointbelow23C,agas/airmixtureindangerousquantityandconcentrationisliableto

occurfromtimetotime.

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Thesameconsiderationappliestodangerousconcentrationsofdust/airmixturesinthecaseof

carriageofcertainbulkcargoes,suchasgrainandfishmeal.

Whencoaliscarried,acombinedhazardduetoductandgas(methane)

concentrationsistobeexpecteddependingonalargeextentonthetypeofcoalandthecountryof

origin.

Ferrosiliconmaybequotedasanexampleforahazardbeingcausedduringthecarriageofsolid

heeffectofwater,ferrosilicondevelops,

interalia,hydrogenindangerousconcentrationsandquantity.

edhazardousareas(comparabletozone2)

Extendedhazardousareasaretobetakenintoconsiderationonlyintheeventofcarriageof

flammableliquidswithaflashpoint23Cinpackagedform,flammablegasesorhighlydangerous

bulkcargoes,whichundercertainconditionsdevelopapotentiallyexplosivegasatmosphere.

Extendedhazardousareasinclude:

3.1Areaswithagastight,closabledoortoareassubjecttoexplosionhazardandnotprovided

ilationbyoverpressurewith

atleast6airchangesperhourorseparatedbyagaslock,theseareasareconsideredtobe

ofthefailureofventilationsystemavisualandaudiblealarmistobegivenand

theequipment,whichisnotofcertifiedsafetype(55)mustbeautomaticallyor

manuallyswitchedoff.

3.2Bilgepumpspacesandpipetunnelswithcomponents,suchasflanges,valves,pumps,etc.,

ilated(exhaustair)withatleast6

airchangesperhour,ofthefailureof

ventilationsystemavisualandaudiblealarmistobegivenandtheequipment,whichisnot

ofcertifiedsafetype(55)mustbeautomaticallyormanuallyswitchedoff.

3.3Areasontheopendeckwithinasphericalof3maroundtheexhaustopeningsofventilation

ductsfromhazardousareas.

ofequipmentforuseinareassubjectotexplosionhazard

Inpractice,thechoiceofexplosion-protectedequipment,takingintoaccountexplosiongroupand

temperatureclass,hastobeproblematical.

Thefollowingfactsmayberecalled:Theignitionpenetrationcharcteristicsofgasesthroughgaps

arereflectedintheexplosiongroup,whilethemaximumadmissibletemperatureofelectrical

imumtemperatureofelectricalequipment

mustalwaysbebelowteignitiontemperatureoftheexplosivegasatmosphere.

Explosiongroupandtemperatureclassarebasedonthephysicalpropertiesofthesubstances,

whichmayformanexplosivegasatmosphere.

Aaabbreviationsforthe

explosiongroupA/B/Careusedandforthe

temperatureclassT1–T6,

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withthemoststringentrequirementsbeingrepresentedbyexplosiongroupCandtemperature

classT6.

TheproblemisthattheIMOdangerclassesmentionedpreviouslycannotbedirectlycorrelatedto

icular,productsofclasses1,2,3,6and8

containawiderangeofcompletelydifferentsubstances,whichowingtotheirphysicalproperties

makehighdemandsonexplsionprotection,i.e.

•explosiongroupIIC

•temperatureclassT5.

Carbondisulfide,whichwouldberequiredtocomeundertemperatureclassT6,isnotpermittedto

becarriedbelowdeck,andneed,therefore,notbeconsidered.

Also,detailsrelatingtoexplosiongroupandtemperatureclassarenotalwaysavailableorinsome

esforthegroupsofsolidbulkareshowninattached.

Inthefolecaseof

2.3above,asubdivisionisused.

4.1Explosivesubstancesinpackagedformconformingtoclass1,exceptforgoodsindivision

1.4,compatibilitygroupS

Explosive,dustyatmosphere:DegreeofprotectionIP65

Maximumsurfacetemperature100C

Potentiallyexplosive,gaseousatmosphere:explosion-protectionequipmentin

Explosiongroup:IIA

TemperatureclassT5

4.2Solidgoodsinbulk,whichmaydevelopdangerousdustonly

DegreeofprotectionIP55

Maximumsurfacetemperature200C

orexplosion-protectedequipmentin

DegreeofprotectionIP55

MaximumsurfacetemperatureT3

4.3Flammableliquidswithaflashpointbelow23Cinpackagedform,flammablegasesor

highlydangerousbulkcargoes,whichundercertainconditionsdevelopapotentially

explosivegasatmosphere.

ExplosiongroupIIC

TemperatureclassT4

Whereallrequirementsof4.1to4.3havetobecompliedwith,duetothefactthatthewhole

rangeofdangerousgoodsisintendedtobecarried,themoststingentrequirementswill

ctricalequipmentwillthenhavetomeetthefollowingmaximum

requirements.

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DegreeofprotectionIP65

Maximumsurfacetemperature100C

ExplosiongroupIIC

TemperatureclassT5

Theseextractingrequirementsimplyconsiderablecosts,areinsomecasesdifficulttoput

intopracticetechnicallyandneedfrequentlyduetorestrictionsonthekindofcargocarried

r,ifashipisintendedtocarryalladmissiblesubstanceswithout

restrictionsastothedangercalsses,theirobservanceistoensured.

Inpractice,inmanycasesrelaxationsarepossible,astransportsofsubstancescanbe

portantspecialarrangements,forinstance,areasfollows:

4.4Ifnohydrogen,nohydrogenmixturesandnocargoinbulkwhichmaydevelophydrogen

undercertainconditionsarecarriedonboardships,explosiongroupIICasstipulatedfor

explosionprotectionin4.3abovemaybereducedtoIIB.

4.5Whereinthecargoholdsofcontainershipstranportsofclass1goods(explosion

substances)andofhydrogenmixturescanbeexcluded,theelectricalequipmenthasto

meetthefollowingrequirementsonly:

DegreeofprotectionIP55

ExplosiongroupIIB

TemperatureclassT4

ofequipmentforuseinextendedhazardousareas

Electricalequipmentchosenforuseintheseareashastomeetthefollowingminimum

requirements:

Ingeneral,equipmentinusedwhichdoesnotproducesparksinnormaloperationandthe

surfacesofwhichdonotattaininadmissibletemperatures,orequipmentwihsimplified

pressurisedenclosureorvapourproofenclosure;degreeofIP55.

Thesurfacetemperaturemustnotexceedavaluebelowtheignitiontemperatureofthe

productsintendedtobecarried,ralavaluebelow135C(T4).

Sincesurfacetemperatureexceeding135Coccuerarelyonlyandtheequipment,suchas

lighting,switches,ventilatormotorsanddistributors,intheseareasmeetstheprescribed

degreeofprotectionrequirementsanyhow,specialmeasuresareinmostcasesnot

required.

Useofexplosion-protectedequipmentofofequipmentwithEx(n)typeprotectionis,of

cource,alsopossible.

lationandoperationofelectricalequipment

Aspecialprovisionshouldbementionedhere,,

theconditionoftheelectricalequipmenthasbeendescribed,whichwillmakeitsuitablefor

r,dangerouscargoisbyno

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ore,systemsarefrequentlyinstalledsuchthatpartofthe

electricalequipmentdoesnotcomplywiththerequirementsfortransportsofdangerouscargo,

withthisequipmentbeingoperatedalsoduringnormalservice,dangerouscargois

carried,anddisconnectedonlyintheeventofdangerouscargoinfactbeingcarried.

Inthisconnectionthefollowingistobeobserved:

Ifelectricalequipmentisinstalledwhichisnotsuitableforuseduringtranportationof

dangerouscargo,itmustbedisconnectedandcapableofbeingsafeguardedagainst

connectiondeviceistobelocatedoutsidethe

hazardousareaandshould,forinstance,includelockableswitchesinitsdesign.

Whereelectricalequipmentisimportantforensuringthesafetyofthecrew,thecargoorthe

ships,itshouldnotbedisconnectedandmustcomplywiththerequirementsforusein

hazardousareas.

lprovisions

AspecialarrangementintheBalticSeaareaisofparticularsignificanceforanumberofro-ro

vessels(cargoandpassengervessels).

Thecarriageofdangerousgoodsonboardro-rovesselsoperatingintheBalticSeaandoflatealso

inthenationalNorthSeaareaissubjecttothe“MemorandumofUnderstanding“asamendedin

Copenhagenon8/10January1992andsignedbyDenmark,Finland,Sweden,Polandandthe

tionsarisingfromthismemorandumintheareaoftheFRG

havebeenentrustedtoGermanischerLloydbytheFederalMinistryofTransport.

ThereasonforthisspecialarrangementarethatarrangementsexistedintheBalticSeapriorto

entryintoforce(1984)ofSOLAS,Regulation54alreadyandthatsomeofthedistancecoveredby

thevesselsareveryshort,sothatrail/roadtraffic(RIDandADR)hadtobetakenintoaccounttoa

romdetailedspecialprovisionsforpassengerandcargovessels(prohibitionof

certainsubstances)andregulationsforstowageonandbelowdeck,inclosedandopenholds,

requirementshavebeenlaiddownforexplosionprotectionofelectricalequipment,providingforat

least20changesofairperhourduringloadingandunloadingoperationsandduringvoyage.

Simplifiedexplosionprotectionofelectricalequipment,asagainstthemeasuresrequiredtobe

takensubjecttoSOLASreg.54,

measureisalsoreferredtoasprimaryexplosionprotection.

Inspecificcases,whichcannotbedealtwith,explosionprotectionofelectricalequipmentis

requiredthroughoutthefullheightofthehold;inothercasesitissufficienttoprovideexplosion

protectionuptoaheightof45cm,whileabovethatheightprovisionsaremadeforlimited

explosionprotection(measuresforextendedhazardousareas).

ExplosionGroups

CountryGermanyInternationalUSA

Page15

SpecificationVDE0171/2.61

IEC-CONELEC

(VDE0171/5.78)

NEC

TerminologyExplosionClassExplosionGroupGroup

Acetone,ammonia,

ethylalcohol,petro,

benzene,methane,

propane

1IIAD

Acetaldehyde,

ethylene,towngas

(coalgas)

2IIBC

Hydrogen

Carbondisulphide

Acetylene

3a

3b

3c

IIC

B

A

AllgasesinClass33n

TemperatureClasses

Ignitintemperatureof

combustiblesubstances

C

IgnitionGroup

VDE0171/2.61

TemperatureClass

DVE0171/5.78,ICE79-7and8

450

300

200

135

100

85

G1

G2

G3

G4

G5

-

T1

T2

T3

T4

T5

T6

CharacteristicsofElectricalEquipmentforUseinAreasSubjecttoExplosionHazard(Comparable

Zone1)intheCarriageofSolidBulkCargoes(Example)

Page16

DangerousGoods

IMO

Class

Hazard

Protectionagainst

Explosive

dusts

Dgreeof

Protection

Explosivegas

atmosphere

Exposion

Group

Temperatur

eClass

Aluminiumdross

Aluminiumferrosiliconpowder

Aluminiumsiliconpowder

uncoated

Coal

Directreducediron

Ferrophosphorus(excl.

briquettes)

Ferrosilicon

Ironoxide,spent

Ironsponge,spent

Dust(ain)

Silicon-manganese

Sulphur

Zincashes

Zincdross

Zincresidues

Zincskimmings

MHB

4.3

4.3

MHB

MHB

MHB

4.3

4.2

4.2

4.2

MHB

4.1

4.3

4.3

4.3

4.3

H2

H2

H2

Dust,

methane

H2

H2

H2

Dust

Dust

Dust

H2

Combustible

H2

H2

H2

H2

-

-

-

IP55

-

-

-

IP55

IP55

IP55

-

IP55

-

-

-

-

IIC

IIC

IIC

IIA

IIC

IIC

IIC

IIA

IIA

-

IIC

-

IIC

IIC

IIC

IIC

T2

T2

T2

T4

T2

T1

T1

T2

T2

-

T1

T4

T2

T2

T2

T2

Note:Theterm“Hazard“relatesexclusivelytothedangerofexplosionattributabletothe

dangerousgoodsandtheelectecalappliances.