1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 5778:2000 The E
2、uropean Standard EN ISO 5778:2000 has the status of a British Standard ICS 47.020.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Ships and marine technology Small weathertight steel hatchesThis British Standard, having been prepared under the direction of the Engineering S
3、ector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 BSI 07-2000 ISBN 0 580 36072 5 BS EN ISO 5778:2000 Amendments issued since publication Amd. No. Date Comments National foreword This British Standard is the official English language v
4、ersion of EN ISO 5778:2000. It is identical with ISO 5778:1998. It supersedes BS MA 8:1983 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee SME/32, Ships and marine technology Steering committee, which has the responsibility to: aid enquirers to unders
5、tand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on t
6、his committee can be obtained on request to its secretary. NOTE When the standard was published as an international standard, the United Kingdom did not implement it as a British Standard as it was considered inferior to the existing BS MA 8:1983. The requirements contained in the international stan
7、dard were not as carefully defined or as rigorous as in the British Standard. However, with the adoption of the international standard as a European Standard, the United Kingdom is obliged to implement it as the national standard superseding BS MA 8:1983. Therefore, care should be taken when followi
8、ng this standard that any statutory or classification society requirements are still met. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publicat
9、ions. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standar
10、d does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an
11、 inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, page ii, pages 1 to 8, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EN ISO 5778:2000A Referencenumbe r ISO5778:1998 (E)
12、INTERNATIONAL STANDARD ISO 5778 Secondedition 19980815 ShipsandmarinetechnologySmall weathertightsteelhatches NaviresettechnologiemaritimePetitspanneauxenacier,tanchesaux intempries EN ISO 5778:2000)E(8991:8775OSI ii Foreword ISO (the InternationalOrganizationforStandardization)isaworldwidefederatio
13、nofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentaland
14、nongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtoth ememberbodiesforvoting. PublicationasanInternat
15、ionalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. InternationalStandardISO5778waspreparedbyTechnicalCommitteeISO/TC8,Shipsandmarinetechnology, SubcommitteeSC8, Structures. Thissecondeditioncancelsandreplacesthefirstedition(ISO5778:1979),ofwhichitconstitutesatechnicalrevision. A
16、mendments Thefollowingamendmentshavebeenmadetothefirstedition(19791215). a) Thenominalsize830630hasbeenadded. b) Theinclinedandverticalpositionofthehatchsealretainingbarhasbeenadmitted. c) Thetolerancesfor a, b, a 1 and b 2 havebeenaddedintables2and3. d) Thetextof3.4.2hasbeensupplemented. e) Thedist
17、ancebetweenthehingespivotandthecoaminghasbeenchangedfrom55mmto60mm. f) Theminimumtensilestrengthofthesteelforcoamings,coverplates,hinges,etc.hasbeenchangedto 340N/mm 2 . g) Thedesignationhasbeenadded. h) Thestandardhasbeeneditoriallyrevised. EN ISO 5778:2000DRADNATSLANOITANRETNI )E(8991:8775OSI 1 Sh
18、ipsandmarinetechnologySmallweathertightsteelhatches 1Scope ThisInternationalStandardspecifiesthemaindimensions,locationandnumberoffittings ,materialsandqualityof manufactureforsmallweathertightsteelhatchesforapplicationonboardshipsinorder to ensure interchangeability of thehatches.Theremainingdimens
19、ionsarelefttothemanufacturer. Thehatchesaresuitableforloadingoperationsandforgivingaccesstostoragecompartmentsanddrycarg oholds. Thehatchesarenotsuitableasanaccesstoanykindoftanksandshallnotbeusedasescapehatches. ThesehatchesgenerallyconformtotherequirementsoftheInternationalConventiononLoa dLines19
20、66(LLC66). Thepossibilityforapplicationinposition1andposition2hastobeconsideredforeachsituatio n and, where necessary, thehatchcoversshallbeprovidedwithadditionalstiffening. NOTE UsersofthisInternationalStandardshouldnotethatwhileobservingtherequirementsofthisstandard,the y should, atthesametime,ens
21、urecompliancewithsuchstatutoryrequirements,rulesandregulationsasmaybeapplicabletothe individualshipconcerned. 2Normativereference Thefollowingstandardcontainsprovisionswhich,throughreferenc einthistext,constituteprovisionsofthis InternationalStandard.Atthetimeofpublication,theeditionindicatedwasvali
22、d.Allstandardsaresubjec ttorevision, andpartiestoagreementsbasedonthisInternationalStandardareencourage dtoinvestigatethepossibilityof applyingthemostrecenteditionofthestandardindicatedbelow.MembersofIECandISOmaintainregistersof currentlyvalidInternationalStandards. ISO262: 1) , ISOgeneralpurposemet
23、ricscrewthreadsSelectedsizesforscrews,boltsandnuts. _ 1)Tobepublished.(RevisionofISO262:1973) EN ISO 5778:2000)E(8991:8775OSI 2 3Maindimensions 3.1Nominalsize The nominalsizeofahatchisbasedontheinsidedimensionsoftheupperpartofthecoaming,asshowninfigur e 1 andtable1. Dimensionsinmillimetres Key 1Hatc
24、hseal Figure1Illustrationofnominalsizes Table1Valuesofnominalsizes Dimensionsinmillimetres Nominal size ab 630630 630830 830630 830830 10301030 13301330 EN ISO 5778:2000 )E(8991:8775OSI 3 3.2Upperpartofcoaming Theupperpartofthecoamingshallconformtothedetailso f figure 2 and table 2. The coaming may
25、have square or roundedcornersasshowninfigure2. Inordertopreventdamageofthehatchseal,theedgesoftheupperpartofthecoamingshouldberoundedor chamfered. Dimensionsinmillimetres Figure2Upperpartofcoaming Table2Sizesofcoaming Dimensionsinmillimetres Nominalsize a - 2 0 b - 2 0 630630 630 630 630830 630 830
26、830630 830 630 830830 830 830 10301030 1030 1030 13301330 1330 1330 EN ISO 5778:2000)E(8991:8775OSI 4 3.3Coverplate Thecoverplateshallconformtothedetailsoffigure3andtable3. Wherethenominalsizeofthecoverplateexceeds83 0mm 830mm,thecoverplateshallbestiffenedin accordancewithRegulation16(2)oftheInterna
27、tionalConventiononLoadLines(ILLC)1966. Thehatchsealretainingbarcanbeplacedinaninclinedorverticalposition,asindicatedinfigure3. Dimensionsinmillimetres Key 1 Hatchsealretainingbar Flat25 4 Figure3Coverplates Table3Sizesofcoverplate Dimensionsinmillimetres Nominalsize a 1 2 b 1 2 630630 674 674 630830
28、 674 874 830630 874 674 830830 874 874 10301030 1074 1074 13301330 1374 1374 EN ISO 5778:2000 )E(8991:8775OSI 5 3.4Fittings 3.4.1 Locationofclosingdevicesandhinges Allthevaluesgiveninfigure4,forcentrelinesofclosingdevicesandhinges,refertotheinsidedimensions (nominalsize)oftheupperpartofthecoaming. D
29、imensionsinmillimetres Key 1Closingdevice 2Centrelineofhinge Figure4Positionsofclosingdevicesandhinges EN ISO 5778:2000)E(8991:8775OSI 6 3.4.2Closingdevices Closingdevicesshallconformtothedimensionsoffigure5. Thewingnutshallbesuitableforapplyingatorqueconvenientfortightness,byonlyonemanwithoutthehel
30、pof anytools.ThreadsofwingnutsandtoggleboltsshallbeinaccordancewithISO262. Dimensionsinmillimetres Key 1Wingnut(typicalshape) 2Togglebolt 3Toggleboltpin 4Centreoftogglebolt 5Lug 6Coverplate 7Hatchseal 8Coaming Figure5Closingdevice EN ISO 5778:2000 )E(8991:8775OSI 7 3.4.3Hinges Twohingesshallbefitted
31、toeachhatchandshallconformtothedimensionsoffigur e6.Eachhingeshallbe providedwithanovalhole,inordertoallowtheclosingdevicestocompressthehatchseal. Dimensionsinmillimetres Key 1Coverplate 2Coaming 3Centreofhingepin 4Hatchseal,noncompressed 5Typicalshape Figure6 Hinge 3.4.4 Hatchseal Thehatchsealshall
32、haveacrosssectionof4 5 mm 20 mm(seefigur e 7),aninitialcompressionof 2 mmbeing allowed. Thehatchsealshallbefittedtothecoverplatesasindicatedinfigure1andshallb e secured by a retaining bar. The hatchsealshallbebondedtothecoverplatebyanadhesivesuitableformarineconditions. It shall be ensured, by a dep
33、th stop positioned on ornearthecentrelineofeachclosingdevice,thatthehatchseal materialcannotbecompressedmorethan4mm. Dimensionsinmillimetres Figure7Hatchseal,crosssection EN ISO 5778:2000)E(8991:8775OSI 8 3.4.5Ancillaryfittings Itisrecommendedthatprovisionbemadeforsecuringthehatchcoverintheraise d p
34、osition and that hatch covers beprovidedwithcounterbalanceweightswhennecessary. 4Materials Thecoamingsandcoversshallbemanufacturedfromweldablesteelof34 0 N/mmminimumtensilestrengthor equivalentshipbuildingqualitysteel. Thehatchsealretainingbars,wingnuts,hinges,lugsandancillaryfittingsshallb emanufac
35、turedfromweldable mildsteelof340N/mmminimumtensilestrength. Thetoggleboltsandtheirpinsshallbemanufacturedfromcorrosionresistantmaterialsof35 0 N/mmminimum tensilestrength. Thequalityoftheresilientsealmaterialformingthehatchsealshallbesatisfactoryforserviceundermarine conditions and shall provide eff
36、ectiveandlastingsealingandresealingpropertieswhenthehatchistightenedunder normalconditions. 5Qualityofmanufacture Coamingsandcoversshallbefreefromdistortion. Coamings,coversandfittingsshallbefreefromanyexposedroughedgeslikelytocauseinjurytopersons. Forcoamingsseealso3.2. Thecoamingsandcoversshallbes
37、uitablytreatedbyblastcleaningoranotherprocesstoremovescaleand surfacedepositsandshallbegivenaprimingcoatofpainttoinhibitsubsequentcorrosion. Uponassemblyofthecompletedcoamingandcover,themanufacturershallensuretha t there is correct registry of theedgeofthecoamingwiththehatchsealmaterialandcontinuous
38、contactbetweenthetwocomponents when the hatchisclosed. 6Testingofweathertightness Thecompletedhatch,wheninstalledonboardship,shallbeclosedan dsecuredinanormalmanner,andthen subjectedtoatest(hosetestorequivalenttest)carriedouttothesatisfactio n of the representative of the regulatory bodyconcerned. 7
39、Designation HatchesconformingtothisInternationalStandardshallbedesignatedbythefollowingindications,intheorder given: a)denomination :hatch; b) numberofthisInternationalStandard:ISO5778; c) nominalsize,asspecifiedintable1. EXAMPLE DesignationofasmallweathertightsteelhatchinaccordancewiththisInternati
40、onalStandardwithth e nominal size 830mm630mm: HatchISO5778830630 EN ISO 5778:2000BS EN ISO 5778:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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