海军舰艇分类规则 DNV-RU-NAV Pt.7 Ch.4_2025

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RULES FOR CLASSIFICATION

Navalvessels

EditionJuly2025

Part7Fleetinservice–retentionofclass

Chapter4Periodicalsurveys–additional

classnotations

ThecontentofthisservicedocumentisthesubjectofintellectualpropertyrightsreservedbyDNVAS(“DNV”).Theuser

acceptsthatitisprohibitedbyanyoneelsebutDNVand/oritslicenseestoofferand/orperformclassification,certification

and/orverificationservices,includingtheissuanceofcertificatesand/ordeclarationsofconformity,whollyorpartly,onthe

basisofand/orpursuanttothisdocumentwhetherfreeofchargeorchargeable,withoutDNV’spriorwrittenconsent.DNV

isnotresponsiblefortheconsequencesarisingfromanyuseofthisdocumentbyothers.

ThePDFelectronicversionofthisdocumentavailableattheDNVwebsitednv.comistheofficialversion.Ifthere

areanyinconsistenciesbetweenthePDFversionandanyotheravailableversion,thePDFversionshallprevail.

DNVAS

FOREWORD

DNVrulesforclassificationcontainproceduralandtechnicalrequirementsrelatedtoobtainingand

retainingaclasscertificate.TherulesrepresentallrequirementsadoptedbytheSocietyasbasis

forclassification.

©DNVASJuly2025

Anycommentsmaybesentbye-mailtorules@dnv.com

Thisservicedocumenthasbeenpreparedbasedonavailableknowledge,technologyand/orinformationatthetimeofissuanceofthis

document.TheuseofthisdocumentbyotherpartiesthanDNVisattheuser'ssolerisk.Unlessotherwisestatedinanapplicablecontract,

orfollowingfrommandatorylaw,theliabilityofDNVAS,itsparentcompaniesandsubsidiariesaswellastheirofficers,directorsand

employees(“DNV”)forprovedlossordamagearisingfromorinconnectionwithanyactoromissionofDNV,whetherincontractorintort

(includingnegligence),shallbelimitedtodirectlossesandunderanycircumstancebelimitedto300,000USD.

CHANGES–CURRENT

ThisdocumentsupersedestheJuly2024editionofDNV-RU-NAVPt.7Ch.4.

Thenumberingand/ortitleofitemscontainingchangesishighlightedinred.

ChangesJuly2025,enteringintoforce1January2026

Topic Reference Description

Sec.2[2] ClarifiedwhichqualifiersfromDNV-RU-NAVcorrespondto

whichqualifiersfromDNV-RU-SHIP.

Classnotationsurveys

Sec.3 DeletedrequirementsfornavalsupportandaddedSAM,EMC,

andRADHAZsurveysinstead.

Editorialcorrections

Inadditiontotheabovestatedchanges,editorialcorrectionsmayhavebeenmade.

Part7Chapter4Changes-current

Rulesforclassification:Navalvessels—DNV-RU-NAVPt.7Ch.4.EditionJuly2025 Page3

Periodicalsurveys–additionalclassnotations

DNVAS

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摘要：

本文档详细解读了2025版《海军舰艇分类规则 DNV-RU-NAV Pt.7 Ch.4》，该标准由挪威船级社（DNV）发布，专门用于规范海军舰艇在设计、建造及入级过程中的分类与技术要求。内容涵盖舰艇结构强度、稳性、材料选用及系统安全性等核心分类准则，适用于各类水面战斗舰艇、辅助舰船及特殊任务舰艇。通过明确第7部分第4章的最新修订条款，本规则为海军装备采办、船舶设计院所及船厂提供了权威的技术依据，确保舰艇在复杂海况下的服役可靠性与国际合规性。该标准版本基于2025年技术更新，整合了网络安全、无人系

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海军舰艇分类规则 DNV-RU-NAV Pt.7 Ch.4_2025

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