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Standards Development
This document applies to direct current (DC) plugs, socket-outlets, ship connectors and ship inlets (hereinafter referred to as accessories) for low-voltage shore connection systems (LVSC).
These accessories have a maximum rated operating voltage not exceeding 1500 V DC and a maximum rated current not exceeding 800 A.
This document applies to accessories for primary use outdoors in inland river and/or seawater environment when the ambient temperature is normally within the range of −25 °C to +55 °C.
Socket-outlets or ship inlets incorporated in or fixed to electrical equipment which is part of the shore connection system are within the scope of this document.
The construction of shore-to-ship power in ports and electrification of ships are most effective ways to reduce marine pollution and greenhouse gas for ship transportation industry, thus help the world achieve the goal of "carbon neutrality". With the development of new energy such as photovoltaic power and wind power, as well as the increasing demand for charging power and time from users, the application of DC charging is becoming increasingly widespread.
For the shore-to-ship power connection system, unified product types and technical requirements for accessories such as plugs, sockets, ship connectors and ship inlets are of great significance in ensuring product compatibility, safety, interchangeability. They play a positive role in promoting the construction of shore-to-ship power, the development of electric ships and even the application of new energy.
So far, IEC 62613-1, IEC 62613-2, and IEC 60309-5 have specified the types, dimensions, and safety performance of accessories used for high-voltage and low-voltage shore connection systems in AC power supply systems.
To ensure safely use, DC electrical accessories and AC electrical accessories should not be interchangeable, and interfaces should also be significant different, and performance in contact settings, temperature rise, and other aspects. So far, there are no corresponding standards for DC electrical accessories for shore-to- ship power in IEC. The design, production, and application of DC electrical accessories for low-voltage shore connection systems (LVSC systems) have been carried out globally for over ten years in the market，and which has promoted the application of shore-to-ship power and environmental protection. However, due to the lack of standards, the types and dimensions of products vary, which affects the compatibility of products, influences development of environment-friendly transportation, and the product quality, safety, and restricting the wider promotion and application of shore-to-ship power. To some extent, it has hindered the global development process of carbon neutrality. The purpose of this document is developing a product standard for DC electrical accessories for low-voltage shore connection system (LVSC system) to unify general technology requirements such as type, dimension, mechanical performance and electrical performance of electrical accessories, so as to solve the above problems and reach an agreement on global level
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