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GB/T 4447-2025 English PDF

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GB/T 4447-2025: Ships and marine technology - Sea-going vessels - Windlasses and anchor capstans
Status: Valid

GB/T 4447: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 4447-2025299 Add to Cart 3 days Ships and marine technology - Sea-going vessels - Windlasses and anchor capstans Valid
GB/T 4447-2008194 Add to Cart 3 days Sea-going vessels -- Windlasses and anchor capstans Valid
GB/T 4447-1992319 Add to Cart 3 days Ses-going vessels--Windlasses and anchor capstans Obsolete

Similar standards

GB/T 7358   GB/T 4446   GB/T 4447   

Basic data

Standard ID: GB/T 4447-2025 (GB/T4447-2025)
Description (Translated English): Ships and marine technology - Sea-going vessels - Windlasses and anchor capstans
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U60
Classification of International Standard: 47.040
Word Count Estimation: 14,146
Date of Issue: 2025-04-25
Date of Implementation: 2025-11-01
Older Standard (superseded by this standard): GB/T 4447-2008
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 4447-2025: Ships and marine technology - Sea-going vessels - Windlasses and anchor capstans

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 47.040 CCSU60 National Standard of the People's Republic of China Replace GB/T 4447-2008 Ship and marine technology Anchor winch anchorcapstans (ISO 4568.2021,MOD) Released on 2025-04-25 2025-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 4447-2008 "Anchor winches and anchor capstans for seagoing vessels". In addition to the integration and editorial changes, the main technical changes are as follows. --- Changed the terms "working load", "nominal specification" and "overload tension" (see 3.1, 3.2 and 3.3, 3.1, 3.2 and 3.3 of the.2008 edition); --- Deleted the term "nominal anchor speed" (see 3.5 of the.2008 edition); --- Added the terms "anchor windlass", "double chain wheel coupled windlass (type 6)", "brake control device" (see 3.5, 3.10 and 3.11); --- Added requirements for mooring reels (see 4.4); --- Changed the strength requirements (see 4.5, 4.4 of the.2008 edition); --- Added requirements for anchor chain wheels (see 4.6.2.2); --- Added requirements for motors (see 4.11.2 and 4.11.3); --- Added requirements for mooring load of cable drum or mooring winch (see 5.4); --- Added test methods (see 6.3 to 6.8). This document is modified to adopt ISO 4568.2021 "Ships and marine technology - Anchor windlasses and anchor capstans for seagoing vessels". The technical differences between this document and ISO 4568.2021 and their reasons are as follows. --- Changed the design requirements for anchor winch drum (see 4.3.1, 4.3.1 of ISO 4568.2021), corresponding to Figure 5 in 3.9; --- Change "mooring winch" to "mooring drum" (see 4.4, 4.4 of ISO 4568.2021). The original "mooring winch" here only refers to The actuator does not include the power drive device. To distinguish it from the "mooring winch" in GB/T 4446, it is changed here to "Mooring reel"; --- Changed the specifications for drive equipment requiring classification society certification (see 4.11.2, 4.11.2 of ISO 4568.2021), and The requirements of the testing agency are consistent; --- Added requirements for motor cables (see 4.11.3), consistent with the requirements of third-party inspection agencies in the industry; --- Increased the requirements for the nominal speed of the windlass (see 6.3); --- Changed the requirements for the lifting and lowering time of the weight in the acceptance test (see 6.4, 6.4 of ISO 4568.2021) to adapt to my country's technical requirements parts, increasing operability; --- The clause that some tests can be carried out on board by consensus (see 6.9 of ISO 4568.2021) has been deleted to adapt to the technical requirements of my country. Technical conditions and increase operability. The following editorial changes were made to this document. ---Removed references. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the National Technical Committee for Standardization of Marine Machinery (SAC/TC137). This document was drafted by. China State Shipbuilding Corporation Limited 704th Research Institute, Qingdao Ocean Shipping Vocational College, Nanjing CSSC Oasis Machinery Co., Ltd., CCCC Third Harbor Engineering Bureau Co., Ltd., Jiangsu Zhengtian Heavy Industry Co., Ltd., China Railway Construction Port and Navigation Bureau Group Co., Ltd. Company, Wuxi Haihe Equipment Technology Co., Ltd. The main drafters of this document are. Ma Yuan, Zhang Honghao, Tong Xiaochuan, Cheng Haitao, Chen Qing, Hui Zigang, Zhang Xiaorong, Jia Yanyan, Du Yu, Liu Lu, Shao Zhenhua, Guo Qiang, Xi Shilei, Wang Yongdong, Jin Ye, Zhang Jihai, Kan Jing, Miao Deqing, Shen Jia, Xu Fei. This document was first issued in 1984, revised for the first time in.1992, revised for the second time in.2008, and this is the third revision. Ship and marine technology Anchor winch

1 Scope

This document specifies the design and construction, requirements, acceptance tests, marking and marking requirements for anchor windlasses and anchor capstans for seagoing vessels. This document applies to electric, hydraulic, pneumatic or externally driven windlasses and anchor winches for seagoing vessels. The main types are as follows. ---Symmetrical double anchor chain windlass (type 1); --- Single chain wheel windlass (type 2); --- Single chain wheel anchoring device (type 3 and type 4); ---Anchor winch (type 5); ---Double chain wheel coupled windlass (type 6). In addition to this document, ISO 3730 is also applicable to anchor and mooring combined machines. Note. Please pay attention to the requirements of the relevant classification society or flag state government.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. ches) Note. GB/T 4446-2025 Shipbuilding and offshore structure mooring winches (ISO 3730.2012, IDT) Note. GB/T 3893-2008 Terminology and symbols for deck machinery in shipbuilding and offshore structures (ISO /FDIS3828.2007, IDT) Note. GB/T 3766-2015 General rules and safety requirements for hydraulic transmission systems and their components (ISO 4413.2010, MOD) ISO 6482 Shipbuilding-Deckmachinery-Warpingendpro- files) Note. GB/T 42690-2023 Shipbuilding deck machinery cable drum shape (ISO 6482.2017, IDT) ISO 7825 Shipbuilding-Deck machinery-General requirements Note. GB/T 42050-2022 General requirements for shipbuilding deck machinery (ISO 7825.2017, IDT) Note. GB/T 6994-2006 Definitions and general provisions for marine electrical equipment (IEC 60092-101.2002, IDT) GB/T 7357-2010 System design protection for marine electrical equipment (IEC 60092-202.1994, MOD) GB/T 9331-2008 Single-core and multi-core power cables with extruded insulation and non-radial electric field for rated voltage 1kV and 3kV for ship electrical installations (IEC 60092-353.1995,IDT) GB/T 9332-2008 150/250V (300V) cables for control and instrument circuits of marine electrical installations (IEC 60092-376.2003, IDT)
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