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GB/T 38329.3-2023 English PDF

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GB/T 38329.3-2023: Utility connections in port - Part 3: Low voltage shore connection(LVSC) systems - General requirements
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GB/T 38329.3-2023English799 Add to Cart 6 days [Need to translate] Utility connections in port - Part 3: Low voltage shore connection(LVSC) systems - General requirements Valid GB/T 38329.3-2023

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Basic data

Standard ID GB/T 38329.3-2023 (GB/T38329.3-2023)
Description (Translated English) Utility connections in port - Part 3: Low voltage shore connection(LVSC) systems - General requirements
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U60
Classification of International Standard 47.020.60
Word Count Estimation 42,430
Date of Issue 2023-08-06
Date of Implementation 2023-12-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 38329.3-2023: Utility connections in port - Part 3: Low voltage shore connection(LVSC) systems - General requirements


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ICS 47.020.60 CCSU60 National Standards of People's Republic of China Port-ship-shore connection Part 3.Low voltage shore connection (LVSC) systems General requirements systems-General requirements Published on 2023-08-06 Implemented on 2023-12-01 State Administration for Market Regulation Released by the National Standardization Administration Committee

Table of contents

Preface III Introduction VII 1 Scope 1 2 Normative reference documents 1 3 Terms and Definitions 3 4 General requirements 4 4.1 System description 4 4.2 Power distribution system 5 4.3 Pre-connection compatibility assessment5 4.4 Low voltage shore power connection system design and operation 6 4.5 Personnel safety6 4.6 Design requirements 6 4.7 Electrical requirements 6 4.8 System studies and calculations 7 4.9 Emergency shutdown (including emergency stop) equipment 7 5 Low voltage shore power system requirements 8 5.1 Voltage and frequency8 5.2 Low voltage shore power quality8 6 Shore installation 9 6.1 General requirements 9 6.2 System component requirements 9 6.3 Shore power electrical protection system 10 6.4 Low voltage interlock10 6.5 Shore power connection converter equipment 11 7 Ship-to-shore connection and interface equipment 11 7.1 General requirements11 7.2 Cable management system 12 7.3 Plugs, socket-outlets and marine couplers13 7.4 Ship-to-shore connection cables 15 7.5 Independent control and monitoring cables 15 7.6 Storage 15 8 Ship requirements 15 8.1 General requirements15 8.2 Protection of ship power distribution system 15 8.3 Shore power connection distribution cabinet (board) 16 8.4 Shore power access control panel 16 8.5 Shipboard transformer 18 8.6 Ship power restoration18 9 Low voltage shore power connection system control 18 9.1 General requirements18 9.2 Load transfer through power outage19 9.3 Load transfer through automatic synchronization 19 10 Verification and Testing 19 10.1 General requirements 19 10.2 Initial testing of shoreside installations19 10.3 Initial tests of side installations 20 10.4 Test of first berthing at shore power supply point 20 11 Regular testing and maintenance 21 11.1 General requirements 21 11.2 Test of repeated anchoring at shore power supply point 21 12 Document 21 12.1 General requirements 21 12.2 System description 21 Appendix A (Normative) Ship-to-shore connection cables 23 Appendix B (Normative) Additional Requirements for Offshore Supply Vessels, Auxiliary Vessels and Engineering Vessels24 Appendix C (normative) Additional requirements for container ships and bulk carriers26 Appendix D (informative) General operating procedures 28 Reference 29

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 3 of GB/T 38329 "Port Ship-Shore Connection". GB/T 38329 has released the following parts. ---Part 1.General requirements for high-voltage shore power connection (HVSC) systems; ---Part 2.Data transmission for monitoring and control of high-voltage and low-voltage shore power connection systems; ---Part 3.General requirements for low-voltage shore power connection (LVSC) systems. This document is modified to adopt IEC PAS80005-3.2014 "Port Shore Power Connection Part 3.Low Voltage Shore Power Connection (LVSC) System General requirements". Compared with IEC PAS80005-3.2014, this document has made the following structural adjustments. a) Modify the paragraph content in the main text to have no title bar; b) Adjust the note under 3.2.1 term "socket" regarding "Use of plugs, sockets and marine couplers, see Figure 7" to under 3.2; c) Adjust the notes containing technical requirements to the main article, see 3.2.1, 4.7.4, 6.1.1.1, 8.4.4; d) Combine the conditions in 5.1 regarding nominal voltage levels and the use of IEC nominal voltages other than the nominal voltages specified in this document. Into one line, see 5.1.1; e) Adjust the requirement that "Low-voltage shore power should include appropriately rated surge arresters" from "5.2 Quality of low-voltage shore power" to "6.3 Shore power "Air protection system"; f) The positions 8.4 and 8.5 were interchanged. The technical differences between this document and IEC PAS80005-3.2014 and their reasons are as follows. ---Replaced IEC 60529 with the normatively quoted GB/T 4208 to adapt to my country's technical conditions and increase operability. ---Replaced IEC 60309-1 with normatively quoted GB/T 11918.1 to adapt to my country's technical conditions and increase operability. ---Replaced IEC 60309-5 with normatively quoted GB/T 11918.5 to adapt to my country's technical conditions and increase operability. ---Replaced IEC TR60909-1 with normatively cited GB/T 15544.2 to adapt to my country's technical conditions and increase operability Doing things. ---Replaced IEC TR60909-2 with normatively quoted GB/T 15544.3 to adapt to my country's technical conditions and increase operability Doing things. ---Replaced IEC 60332-1-2 with normatively quoted GB/T 18380.12 to adapt to my country's technical conditions and increase operability Doing things. ---Replaced IEC 60092-401.1980 with normatively quoted GB/T 21065 to adapt to my country's technical conditions and increase operability Doing things. ---Replaced IEC 61363-1 with normatively quoted GB/T 21066 to adapt to my country's technical conditions and increase operability. ---Replaced IEC 60092-301.1995 with normatively quoted GB/T 35712 to adapt to my country's technical conditions and increase operability Doing things. ---This document further clarifies the scope of application of the standard as a single connector with a rated current greater than 250A and a nominal voltage greater than or equal to Low voltage shore power connection system of 400V and less than or equal to 1000V. From the perspective of safety and application conditions, this The document does not apply to marinas, shipyards and oil, gas and chemical terminals, or to the limits of human-operated systems specified in IEC 61439. Certainly. As it is clear in the preface that GB/T 38329 is divided into three parts, Part 1 is the high-voltage shore power connection (HVSC) system general requirements, delete the description of the relevant requirements for high-voltage shore power connection systems in the scope, see GB/T 38329.1 (see Section 1 chapter). ---For ease of understanding, the terms and definitions of "IT power system" and "connector" have been added (see 3.12 and 3.13). ---Because it is clear that this document does not apply to oil, gas and chemical terminals, the content of the compatibility assessment regarding the consideration of hazardous areas has been deleted [see IEC PAS80005-3.4.3m) in.2014], deleted the requirements for electrical equipment in hazardous areas (see IEC PAS80005-3. 4.6.4 in.2014), the emergency shutdown requirement for ship connection equipment that may move to hazardous areas has been deleted (see IEC PAS 80005-3.4.9 in.2014). ---In order to ensure the effective application of communications in shore power connection operations, compatibility assessment requirements for communications compatibility assessment are added [see 4.3p)]. ---Delete from the system design requirements "System integration of shore and ship LVSC systems shall be managed by a single designated party and shall be based on "Conducted in accordance with procedures that clarify the roles, responsibilities and requirements of relevant parties", this article does not apply to our country (see IEC PAS80005-3. 4.4.1 in.2014). ---In order to ensure good communication channels during shore power connection operations, it is added that "there should be independent communication between ships and dock shore power facility operators" "Establish a voice communication channel (such as a walkie-talkie)" (see 4.4.2.3). In order to ensure the standardization of system operation and clarify the responsibilities of relevant parties Responsibilities, adding "The operation of low-voltage shore power systems on shore and ships should comply with prescribed procedures, and determine the duties and responsibilities of all relevant parties. and requirements” (see 4.4.2.4). ---Modified the statement of connector rating requirements to maintain coordination with the description of relevant requirements in GB/T 11918.5 (see 4.7.6). ---Because my country's terminals currently provide ships with low-voltage power supply with ungrounded neutral points, the compatibility evaluation of the power distribution system before connection has been deleted. The content of the evaluation on the neutral point grounding evaluation of the shore transformer [see 4.3i) in IEC PAS80005-3.2014] has been deleted. Systematic research and calculation on shore power transformer neutral point grounding resistance analysis related content [see IEC PAS80005-3.2014 4.8c) and e)], delete the requirement that the secondary side transformer should be in star configuration with neutral point bushing (see IEC PAS80005-3. 6.2.2 in.2014), the requirement for neutral point grounding resistance is deleted (see 6.2.3 in IEC PAS80005-3.2014), and the ship The conditions for not requiring a shipboard transformer are determined by "the power grid on the ship is designed according to the shore power supply voltage and the neutral point processing is tied to the ship." "Unified and consistent" is adjusted to "The power system on board is consistent with the design voltage of shore power access" (see 8.5.2). Delete the special information in the appendix. Additional requirements for ship neutral point grounding resistors (see C.6.2.3 and D.6.2.3 in IEC PAS80005-3.2014) are specified to suit In response to my country's technical conditions. ---In the system research and calculation, the short-circuit current calculation adds the short-circuit current calculation "should be in accordance with GB/T 15544.2 and GB/T 15544.3 stipulates the requirements for "carrying out" and maintains coordination with relevant standards (see 4.8.1). The calculation of system charging current has been deleted and requirements related to transient overvoltage protection analysis [see 4.8d) and f) in IEC PAS80005-3.2014]. ---The rated voltage of the safety circuit relay is further clarified as "DC rated voltage U0 is 150V, AC rated voltage U is 250V (the maximum AC voltage Um is 300V)" (see 4.9.3). ---Deleted the AC690V nominal voltage (see 5.1 in IEC PAS80005-3.2014), and other nominal voltages in this document It is the relevant content of AC690V to adapt to the technical conditions of our country. ---Modify the conditions for using IEC other nominal voltages other than the nominal voltage specified in this document to adapt to my country's technical conditions (See 5.1.1). ---Deleted the requirement for galvanic isolation of low-voltage shore power connections and shore power distribution systems (see 5.1 in IEC PAS80005-3.2014). The requirements are duplicated with those related to 6.1. --- Added content requirements for power supply quality specifications to standardize power supply quality specifications (see 5.2.1). ---Adjust the steady-state voltage rise deviation value of the shore power connection point under no-load conditions from 6% to 5%, in compliance with the requirements of JTS155 Adjust to suit national technical conditions (see 5.2.2). ---It is added that shore connection devices should comply with the provisions of JTS155 to meet the requirements of my country's relevant mandatory standards (see 6.1.1.1). ---To ensure the compatibility of ship-to-shore systems, it is added that "ships equipped with IT (ungrounded) power systems should be connected to equivalent IT (ungrounded) Grounding) shore power system" requirements (see 6.1.1.4). ---To ensure safety, it is added that in the case of ground fault, the low-voltage circuit breaker on the secondary side of the shore-side transformer should disconnect all insulated electrodes. Seek (see 6.3.1). Since overvoltage protection and undervoltage protection have been stipulated for voltage protection, no other protection devices are needed, so the 6.3.1 The installation voltage transmission requirements proposed by the requirement for the secondary side low-voltage circuit breaker of the shore-side transformer to disconnect all insulated electrodes under the conditions listed in 6.3.1. Requirements for sensing devices (see 6.3 in IEC PAS80005-3.2014). To ensure grounding adopts ground fault of IT power system To realize the protection function, the requirement of "when shore power is connected, the ship's insulation monitoring equipment should be disconnected if necessary" (see 6.3.1). ---Deleted "Equipment grounding conductors that may require termination of shore power outlet box sockets to achieve equipotential bonding between shore and ship" Description of the possibility of connection to the ship's switchgear earth bus and/or to the hull" (see IEC PAS80005-3.2014 6.2.4). ---In order to meet safety requirements, the requirement that the circuit breaker should not close when "voltage exists in the downstream direction" is added (see 6.4.2). ---In order to avoid over-stretching or bending of the cables due to different lengths of the connecting cables, additional cables are added for each connection between the shore and the ship. The cables should have the same length requirements. At the same time, cutting off the power supply of a cable alone can easily cause a fault, which increases the number of times a fault occurs. The safety circuit is to be required to simultaneously cut off the power supply of all ship-to-shore connections (see 7.1.2). ---It is further clarified that only one factory-assembled mobile cable management system is allowed at each connection point of the ship-to-shore connection cable (see 7.1.7). ---For ease of understanding, a schematic diagram of the connection configuration between the ship and the mobile cable management system and the shore-based fixed cable management system has been added. Connection configuration diagram (see 7.2.1.3 and 7.2.1.4). ---Deleted the description of the recommended content that equivalent alternative measures may be considered for cable length monitoring (see IEC PAS80005-3.2014 7.2.3). ---Deleted the requirements for current unbalance protection of connecting conductors and duplicated the content of 6.3 (see 7.2.4 in IEC PAS80005-3.2014). ---Change the title of 7.3 from "Plugs and Sockets" to "Plugs, Sockets and Marine Couplers" to better match the technical content of this article (see 7.3). ---Added that the design of plugs, sockets, marine connectors and marine input sockets should comply with the provisions of GB/T 11918.5 to adapt my country's technical conditions (see 7.3.1.5). Removed information regarding the placement of plugs, receptacles, marine connectors, and marine input receptacles The requirements are repeated with the relevant content in the previous article (see 7.3.1 in IEC PAS80005-3.2014). Added plugs, sockets, marine inputs Type requirements for sockets and marine connectors, as well as quantity requirements for ship-to-shore configuration cables, to ensure coordination of connections and interfaces (see 7.3.1.3 and 7.3.1.4). ---For ease of understanding, the single-circuit power supply safety loop diagram has been deleted (see 7.3.1 in IEC PAS80005-3.2014) and optimized Dual-circuit power supply safety circuit diagram (see 7.3.1.11). Added the ability to detect when a plug is disconnected or a power cord is disconnected during shore power connection. In the event of an electrical fault in the cable, all shore and ship safety circuits shall be disconnected to meet safety requirements (see 7.3.1.15 and 7.3.1.16). ---When the shore power is connected, the current flowing through the ground contact is less than the phase line current. Delete "the current carrying capacity of the ground contact should be at least equal to that of other mains". "Contact rated current" requirements (see 7.3.3 in IEC PAS80005-3.2014). ---Deleted the requirement that "if control and monitoring cables are integrated with power cables, they should be able to withstand internal and external short-circuit currents". It is not accurate, and the insulation level of the cable has relevant standard requirements (see 7.5 in IEC PAS80005-3.2014). ---Deleted "When it is possible to be connected to more than one low voltage shore power supply, if there is any power supply exceeding the low voltage shore power or ship power system In the case of the maximum expected short-circuit current of the system/equipment, measures should be taken to prevent parallel connection of low-voltage shore power supplies." my country should With shore power, there is no way for a ship to be connected to multiple shore power sources at the same time (see IEC PAS80005-3.2014 8.2.1). ---Deleted the requirements related to changing equipment settings in 8.2.2, which do not belong to the requirements related to ground fault protection, monitoring and alarm (see 8.2.2 in IEC PAS80005-3.2014). ---Added that the rated closing capacity of the circuit breaker should not be less than the short-circuit current predetermined calculated in GB/T 15544.2 and GB/T 15544.3 The requirements for period peak value (IP) (see 8.3.2.3), and the rated short-circuit breaking capacity shall not be less than that in accordance with GB/T 15544.2 and The requirements for the maximum expected symmetrical short-circuit current [IAC (0.5T)] calculated in GB/T 15544.3 are coordinated with relevant standards (see 8.3.2.4). ---Deleted the requirement that the switchgear connected to shore power on board should have unbalance protection for systems with multiple cables, and also for single cables. There is unbalance protection (see 8.3.3 in IEC PAS80005-3.2014). For shipboard sockets, plugs, connectors and input jacks The protection of the base is added, "If the contact resistance increases abnormally, negative phase sequence overcurrent or internal thermal sensor or equivalent device can be provided. "Low-voltage marine equipment should include appropriate rated surge arresters" is added to ensure the safety of marine equipment. electrical appliances to protect against fast transient overvoltage surges (such as those caused by lightning strikes or switching surges)" requirements (see 8.3.3.2 and 8.3.3.5). ---Deleted "For ships that regularly conduct sailing trade, the operator may be responsible for both the ship and the shore low-voltage shore power connection system." "Operation" provisions, this article does not apply in my country (see 8.5.5 in IEC PAS80005-3.2014). ---Deleted the requirements for cable laying in A.3.5 in Appendix A and duplicated the content of A.3.1 (see IEC PAS80005-3.2014 A.3.5). ---Because the relevant requirements have been added to Chapter 7 of the main text, delete "Appendix B ship-to-shore connection plugs, sockets, marine connectors and ship-to-shore connectors". Use the entrance" (see Appendix B in IEC PAS80005-3.2014). ---Added additional requirements for low-voltage shore power connection systems for bulk carriers (see Appendix C). ---For offshore supply ships, auxiliary ships and engineering ships, as well as container ships and bulk carriers that need to carry out port operations or load and unload cargo, etc. For ships, the compatibility assessment before connection adds the additional requirement of "sufficient cable length to the level of the power receiving point plus 3m" (see B.4.3 and C.4.3). ---Because it is clear that this document does not apply to oil, gas and chemical terminals, the additional requirements for oil tankers are deleted (see IEC PAS80005-3. 2014). ---Adjust the general operating procedures of low-voltage shore power connection systems on shore and ships from normative appendix to informative appendix to adapt to my country's Technical conditions (see Appendix D). The following editorial changes have been made to this document. ---Deleted the notes in 3.2, 4.4.2, 4.5, and 6.2.2 that are not applicable to our country. 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. 704th Research Institute of China State Shipbuilding Corporation, Nari Group Co., Ltd., Jiangsu Jianlong Electric Co., Ltd. Company, Shanghai Shipping Research Institute, Suzhou Electrical Apparatus Research Institute Co., Ltd., Southeast University Liyang Research Institute, Ministry of Transport Water Transport Science Research Institute. The main drafters of this document. Liu Lihong, Gu Qun, Ma Weiliang, Sheng Weiqun, He Shengli, Huang Yibin, Chen Shuzhong, Zhang Xuejin, Zhang Huanren, Lu Ning, Hu Delin, Tang Yi, Zhang Wei, Liu Qingguo.

Introduction

The use of shore power by ships docking at the port is an important measure to reduce the emission of atmospheric pollutants during the ship's docking period and improve urban air quality. Port-ship-shore connection is the prerequisite for the use of port and shore power when ships are docked at the port. Port ship-shore connection mainly includes shore power system connection and monitoring data transmission for measurement and control. Among them, the shore power connection system has different technical requirements for high-voltage and low-voltage. There are big differences in aspects. Both internationally and domestically, shore power systems are divided into two parts. high-voltage shore power systems and low-voltage shore power systems. GB/T 38329 aims to standardize and unify port ship-to-shore connection shore power systems and data transmission requirements for monitoring and control to ensure Ensure the safety, compatibility and applicability during shore power connection and use, and improve the efficiency when connecting to shore power. GB/T 38329 consists of three Composed of parts. ---Part 1.General requirements for high-voltage shore power connection (HVCS) systems. The purpose is to provide high-voltage shore power connections between ships and shore systems, and establish requirements for the design, installation and testing of systems that deliver power from shore to ships. ---Part 2.Data transmission for monitoring and control of high-voltage and low-voltage shore power connection systems. The purpose is to determine the number of shoreside and shipside According to the unified requirements of the interface, establish the procedures for realizing non-emergency communication for low-voltage and high-voltage shore power connection system communication when necessary. ---Part 3.General requirements for low-voltage shore power connection (LVCS) systems. The purpose is to provide low voltage shore power connections on board ships and on shore systems, and establish requirements for the design, installation and testing of systems that deliver power from shore to ships. Port-ship-shore connection Part 3.Low voltage shore connection (LVSC) systems General requirements

1 Scope

This document specifies the general requirements for low-voltage shore power connection systems, requirements for low-voltage shore power systems, shore installations, ship-to-shore connection and interface equipment, ship Ship and low-voltage shore power connection system control requirements, as well as low-voltage shore power connection system verification and testing, regular testing and maintenance requirements. This document applies to the design, installation and testing of low voltage shore power connection systems, covering. a) Low voltage shore power distribution system; b) Ship-to-shore connection and interface equipment; c) Transformer/Reactor; d) Semiconductor/rotary converter; e) Ship power distribution system; f) Protection, monitoring, interlocking and power management systems. Note. This document does not apply to power supply during docking, such as docking and other maintenance and repairs. Additional and/or alternative requirements may be imposed by national authorities or ship operating authorities and/or shipowners or authorities responsible for shore power. The low-voltage shore power connection system is used for ships whose power demand does not exceed 1MVA when berthing in port. This document applies to a single connector Low-voltage shore power connection systems with a constant current greater than 250A and a nominal voltage greater than or equal to 400V and less than or equal to 1000V are not applicable Marinas, shipyards and oil, gas and chemical terminals, or human-operated systems as specified in IEC 61439 (all parts).

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. GB/T 3956-2008 Cable conductors (IEC 60228.2004, IDT) GB/T 5226.1-2019 Mechanical and electrical safety Mechanical and electrical equipment Part 1.General technical conditions (IEC 60204-1. 2016,IDT) GB/T 4208 Enclosure protection level (IP code) (GB/T 4208-2017, IEC 60529.2013, IDT) GB/T 6994-2006 Definition and general provisions for ship electrical equipment (IEC 60092-101.2002, IDT) GB/T 7358-1998 General design principles for ship electrical equipment systems (IEC 60092-201.1994, IDT) GB/T 11918.1 Industrial plugs, sockets and couplers Part 1.General requirements (GB/T 11918.1-2014, IEC 60309-1.2012, MOD) GB/T 11918.5 Industrial plugs, sockets and couplers Part 5.Plugs and sockets for low voltage shore power connection systems (LVSC systems) Dimensional compatibility and interchangeability requirements for sockets, marine connectors and marine input sockets (GB/T 11918.5-2020, IEC 60309-5. 2017,MOD) GB/T 15544.2 Calculation of short-circuit current in three-phase AC systems Part 2.Coefficients for application in calculation of short-circuit current (GB/T 15544.2- 2017,IEC TR60909-1.2002,IDT)

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