Plugs,socket-outlets and couplers for industrial purposes―Part 6: Direct current(DC) plugs,socket-outlets and connectors for ship and shore power supply system
GB/T 11918.6-2025 Plugs,socket-outlets and couplers for industrial purposes―Part 6: Direct current(DC) plugs,socket-outlets and connectors for ship and shore power supply system English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS 29.120.30
CCS K 30
National Standard of the People's Republic of China
GB/T 11918.6-2025
Plugs, socket-outlets and couplers for industrial purposes - Part 6: Direct current (DC) plugs, socket-outlets and connectors for ship and shore power supply system
工业用插头插座和耦合器 第6部分：船舶岸电系统用直流插头、插座和连接器
(English Translation)
Issue date: 2025-02-28 Implementation date: 2025-09-01
Issued by the State Administration for Market Regulation
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General rules
5 Standard ratings
6 Classification
7 Marking
8 Dimensions
9 Protection against electric shock
10 Earthing measures
11 Terminals and terminations
12 Interlocks
13 Resistance to ageing of rubber and thermoplastic materials
14 Construction
15 Construction of socket-outlets
16 Construction of plugs and connectors
17 Construction of appliance inlets
18 Degrees of protection
19 Insulation resistance and electric strength
20 Breaking capacity
21 Normal operation
22 Temperature rise
23 Flexible cables and their connections
24 Mechanical strength
25 Screws, current-carrying parts and connections
26 Creepage distance, air gaps and distances through sealing compound
27 Resistance to heat, fire and tracking
28 Resistance to rusting and corrosion
29 Withstand test against limited short-circuit currents
30 Electromagnetic compatibility (EMC)
31 Environmental suitability
32 Temperature monitoring
Annex A (Normative) Standard sheets
Bibliography
Plugs, socket-outlets and couplers for industrial purposes - Part 6: Direct current (DC) plugs, socket-outlets and connectors for ship and shore power supply system
1 Scope
This document specifies the marking, dimensions, protection against electric shock, construction, electrical and mechanical performance requirements for direct current (DC) plugs, socket-outlets and connectors for ship and shore power supply systems (hereinafter referred to as electrical accessories).
This document is applicable to electrical accessories with a rated operating voltage not exceeding 1500 VDC and a rated current not exceeding 1000 ADC.
These accessories are intended to be installed and used by instructed persons (GB/T 2900.73-2008, definition 195-04-02) or skilled persons (GB/T 2900.73-2008, definition 195-04-01).
Unless otherwise specified, this document applies to electrical accessories for use in an ambient temperature between -25°C and +55°C and in normal use in pollution degree 3 environments as specified in GB/T 16935.1-2023.
These electrical accessories are intended to be connected only to copper or copper-alloy cables.
Socket-outlets or ship inlets, incorporated in or fixed to electrical equipment as part of the shore connection system, are within the scope of this document.
For locations where special conditions prevail, such as where explosions are likely to occur, additional requirements may be necessary.
Electrical accessories for other types of ship DC charging systems may refer to this document.
Note 1: The electrical accessories in this document can serve as interfaces for containerized power sources during charging and discharging.
Note 2: This document specifies the requirements for DC plugs and socket-outlets for ship and shore power supply systems; for the requirements for connectors and inlets for ship and shore power supply systems, see DL/T 2804-2024.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 9331 Single and multicore non-radial field power cables with extruded solid insulation for rated voltages 1 kV and 3 kV
GB/T 11918.1-2014 Plugs, socket-outlets and couplers for industrial purposes - Part 1: General requirements
GB/T 11918.5-2020 Plugs, socket-outlets and couplers for industrial purposes - Part 5: Dimensional compatibility and interchangeability requirements for plugs, socket-outlets, ship connectors and ship inlets for low-voltage shore connection systems (LVSC)
GB/T 16935.1-2023 Insulation coordination for equipment within low-voltage supply systems - Part 1: Principles, requirements and tests
DL/T 2804-2024 Plugs, socket-outlets and ship couplers for electric ship DC charging system purposes
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 11918.1-2014 and the following apply.
3.1
electrical accessory
collective term for plugs, socket-outlets, ship connectors and ship inlets
Note: For a typical application diagram of electrical accessories, see Figure 501 in GB/T 11918.5-2020.
[Source: GB/T 30845.1-2023, 3.1]
3.2
ship coupler
device that enables a flexible cable to be connected to a ship, as required, comprising a combination of a ship connector and a ship inlet
[Source: GB/T 30845.1-2023, 3.2]
3.3
ship connector
part intended to be attached to a flexible cable connected to a power supply, and to be engaged with a ship inlet
[Source: GB/T 30845.1-2023, 3.2.1, modified]
3.4
ship inlet
part incorporated in or mounted on a ship
[Source: GB/T 30845.1-2023, 3.2.2]
3.5
shore connection system
system for supplying power from the shore to a ship's batteries during its stay in port
[Source: GB/T 11918.5-2020, 3.503, modified]
3.6
retaining device
mechanical device that retains a plug or connector in the normal position when fully engaged and prevents its accidental withdrawal
[Source: GB/T 11918.5-2020, 3.10]
3.7
temperature monitor
process of acquiring temperature signals from monitored points at specified frequencies, using temperature sensors or other means, and supplying these to the system
[Source: GB/T 20234.1-2023, 3.18, modified]
4 General rules
4.1 Clause 4 of GB/T 11918.5-2020 applies, except as specified in 4.2 and 4.3 of this document.
4.2 For tests requiring wiring, copper conductors shall be used and shall comply with the requirements of GB/T 9331 and other relevant standards for conductors. Conductors supplied by the manufacturer that meet these requirements may be used.
