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Mobile and fixed offshore units - Electrical installations - Part 5: Mobile units
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GB/T 25444.5-2023
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| GB/T 25444.5-2010 | English | 839 |
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Mobile and fixed offshore units -- Electrical installations -- Part 5: Mobile units
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GB/T 25444.5-2010
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Standard similar to GB/T 25444.5-2023 GB/T 25444.3 GB/T 25444.6 GB/T 25444.1 Basic data | Standard ID | GB/T 25444.5-2023 (GB/T25444.5-2023) | | Description (Translated English) | Mobile and fixed offshore units - Electrical installations - Part 5: Mobile units | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | U60 | | Classification of International Standard | 47.020.60 | | Word Count Estimation | 22,213 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-04-01 | | Older Standard (superseded by this standard) | GB/T 25444.5-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25444.5-2023: Mobile and fixed offshore units - Electrical installations - Part 5: Mobile units
---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 47:020:60
CCSU60
National Standards of People's Republic of China
Replace GB/T 25444:5-2010
Electrical installations for mobile and fixed offshore installations
Part 5: Mobile facilities
(IEC 61892-5:2019,IDT)
Published on 2023-12-28
2024-04-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 General requirements 3
4:1 Environmental conditions 3
4:2 Waterproof 3
4:3 Rotating electrical machines 4
4:4 Conductors, equipment and instruments 4
4:5 Main switchboard 4
4:6 Handrails or handles on mobile devices 4
4:7 Rotation axis 4
5 Facility tilt limit 4
5:1 Competent authority requirements 4
5:2 Machinery, equipment and instruments---General 4
5:3 Propulsion device 5
5:4 Important power source 5
5:5 Emergency Machines 5
5:6 Dynamic conditions 5
6 Bilge Pump 5
6:1 Power supply 5
6:2 Cables and wiring 5
6:3 Position of starting device 6
7 Navigation lights and obstruction lights 6
7:1 General requirements 6
7:2 Operating obstacle lights 6
7:3 Navigation lights 6
7:4 Power supply and monitoring system 6
7:5 Special requirements for the use of light-emitting diode (LED) lamps 6
8 Steering gear 7
8:1 Power steering gear 7
8:2 Electric motor 7
8:3 Motor starter 7
8:4 Power line supply 7
8:5 Power supply for control circuits and control systems 7
8:6 Line protection 8
8:7 Starting and stopping of the steering gear power unit motor 8
8:8 Steering gear control system 8
8:9 Alarms and instructions 8
8:10 Rudder angle indicator 8
8:11 Line separation 8
8:12 Communication between bridge and steering gear room 9
9 Batteries and battery packs 9
10 Dynamic positioning 9
11 Ballast system 9
11:1 General requirements 9
11:2 Ballast pump 9
11:3 Control and indication systems 9
11:4 Internal communications10
11:5 Waterproof10
12 Lifting system 11
12:1 General requirements 11
12:2 Design 11
12:3 Locking capacity11
12:4 Motor capacity 11
12:5 Lifting device motor and motor controller 12
12:6 Factory test or shipboard test after modification12
13 Mooring system 12
13:1 General requirements12
13:2 Anchor arrangement 12
13:3 External communication system 13
13:4 Thruster-assisted mooring system (TA) 13
Appendix A (informative) Typical variable speed drive (VSD) AC lifting system 14
Reference 15
Figure A:1 Typical VSD AC lifting system14
Table 1 Ambient temperature 3
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document is Part 5 of GB/T 25444 "Electrical Installations for Mobile and Fixed Offshore Installations": GB/T 25444 has been issued
The following parts have been published:
---Part 1: General requirements and conditions;
---Part 2: System Design;
---Part 3: Equipment;
---Part 5: Mobile facilities;
---Part 6: Installation;
---Part 7: Hazardous areas:
This document replaces GB/T 25444:5-2010 "Electrical installations for mobile and fixed offshore installations - Part 5: Mobile installations",
Compared with GB/T 25444:5-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) The applicable limits of the scope have been changed (see Chapter 1, Chapter 1 of the:2010 edition);
b) Changes in terms and definitions (see Chapter 3, Chapter 3 of the:2010 edition);
c) Added requirements for ambient temperature, main switchboard and emergency switchboard handrails (see 4:1, 4:5 and 4:6), and changed waterproof requirements
(See 4:2, 4:1 of the:2010 edition);
d) Changed the requirements for facility inclination limits (see Chapter 5, Chapter 5 of the:2010 edition);
e) Obstruction light requirements and special requirements for the use of LED lights have been added (see 7:2 and 7:5), and navigation light power supply and monitoring system requirements have been changed:
Seek (see 7:4,:2010 version of 7:5);
f) The requirements for the rated working system have been changed (see 8:2:3, 8:2:4, 8:2:2:1, 8:2:2:2 of the:2010 edition); the motor starter has been changed
Requirements (see 8:3,:2010 version of 8:3);
g) Changed the technical requirements for electric propulsion (see Chapter 9, Chapter 9 of the:2010 edition);
h) The DC propulsion system requirements are deleted (see 9:7:2:2 of the:2010 version);
i) Added requirements for verification of dynamic positioning enhancement systems (see Chapter 10);
j) The requirements for control and indication systems have been changed (see 11:3,:2010 version of 11:3), and the requirements for waterproofing of ballast systems have been added (see
11:5);
k) The requirements for lifting systems have been changed (see Chapter 12, Chapter 12 of the:2010 edition);
l) The requirements for propeller auxiliary mooring systems have been changed (see 13:4,:2010 version of 13:4):
This document is equivalent to IEC 61892-5:2019 "Electrical installations of mobile and fixed offshore installations - Part 5: Mobile installations":
This document has made the following minimal editorial changes:
---Additional information added in 3:1 and 3:5:
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed and coordinated by the National Standardization Technical Committee for Ship Electrical and Electronic Equipment (SAC/TC531):
This document was drafted by: Comprehensive Technical and Economic Research Institute of China State Shipbuilding Corporation, Shanghai Ship Research and Design Institute, CNOOC Research
GENERAL HOSPITAL LIMITED:
The main drafters of this document: Guo Ya, Fu Dianfu, Xie Jiachun, Liu Guofeng, Li Wei, Liu Yishe, Wei Che, Zhao Chenning, Lai Junxing, Wang Cong,
Yang Yuting, Dong Lin, Liu Caiqian, Ma Fei, Zeng Hongli, Song Mengran, Liang Wenzhou:
The previous versions of this document and the documents it replaces are as follows:
---First published in:2010 as GB/T 25444:5-2010;
---This is the first revision:
Introduction
GB/T 25444 "Electrical Installations for Mobile and Fixed Offshore Facilities" aims to cover general requirements, system design, equipment, cables, mobile
Facilities, installation and hazardous areas, etc:, proposed designs for electrical equipment in mobile and fixed offshore facilities used for petroleum exploration or extraction:
Design, installation, maintenance and use requirements, applicable to pipelines, pumping stations or pipelines for drilling, production, accommodation, processing, oil storage and unloading in the offshore oil industry
In-tube cleaning station, air compressor station and single buoy mooring facility:
GB/T 25444 is planned to consist of seven parts:
---Part 1: General requirements and conditions: The purpose is to provide for mobile and fixed offshore installations used for petroleum exploration or extraction
General requirements for electrical installations:
---Part 2: System Design: The purpose is to specify systems for mobile and fixed offshore installations used in petroleum exploration or extraction
Design requirements:
---Part 3: Equipment: The purpose is to specify the design of equipment for mobile and fixed offshore installations used in petroleum exploration or extraction:
and testing requirements:
---Part 4: Cables: The purpose is to provide for the electrical installation of mobile and fixed offshore installations used in petroleum exploration or extraction:
Cable selection requirements:
---Part 5: Mobile facilities: The purpose is to provide for the electrical
Additional features of the device:
---Part 6: Installation: The purpose is to provide for the electrical installation of mobile and fixed offshore installations used in petroleum exploration or extraction:
installation requirements:
---Part 7: Hazardous areas: The purpose is to regulate the hazards of mobile and fixed offshore installations used for petroleum exploration or extraction:
Area classification and selection requirements for electrical equipment in hazardous areas:
GB/T 25444 aims to form a series of standards applicable to electrical equipment in the offshore petroleum industry, but is not limited to petroleum equipment:
use:
Electrical installations for mobile and fixed offshore installations
Part 5: Mobile facilities
1 Scope
This document specifies additional characteristics for electrical installations on mobile installations:
This document specifies the following requirements:
---Environmental conditions;
---Tilt limits of equipment that need to be operated on the facility;
---Bilge pump;
---Navigation lights and obstruction lights;
---Servo;
---Ballast system;
---Lifting system;
---Mooring system:
For electric propulsion systems, refer to IEC 60092-501:
For dynamic positioning systems, refer to the relevant requirements of the International Maritime Organization (IMO):
This document applies to mobile facilities such as column-stabilized facilities (semi-submersible facilities), ship- or barge-mounted floating facilities and jack-up facilities:
This document specifies additional characteristics of facilities used for drilling, production, accommodation, processing, storage and offloading that can be moved from one location
Move to another place:
This document applies to all permanent, temporary, mobile or handheld AC and DC installations, regardless of voltage level: ginseng
The equipment standards may provide voltage level restrictions:
This document does not apply to the following devices:
---Medical fixed electrical devices;
---Electrical installation of liquid cargo ship;
--- Ignition source control equipment other than ignition sources generated by electrical equipment:
Note 1: IEC 60364-7-710 has specific requirements for medical rooms: The requirements for oil tankers are found in IEC 60092-502:
Note 2: Guidance on the protection of non-electrical equipment is found in ISO 80079-36, ISO 80079-37 and 6:7 of the IMO2009 MODU rules:
Note 3: Pay attention to the further requirements for electrical installations of such mobile offshore facilities in the IMO2009 MODU regulations:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
performance)
Note: GB/T 755-2019 Ratings and performance of rotating electrical machines (IEC 60034-1:2017, IDT)
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GB/T 25444.5-2023: Mobile and fixed offshore units - Electrical installations - Part 5: Mobile units
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