IEC TS 61850-1-2:20 20是一项技术规范，面向任何用户，但主要面向正在考虑在其工作范围内使用IEC 61850作为基本标准并愿意在IEC 61850标准允许的情况下扩展该标准的标准化机构。本文件确定了实现IEC 61850此类扩展所需的步骤和高级要求，并为各个步骤提供了指南。 在此范围内，本文件涉及以下情况: ？具有基于IEC 61850接口的产品的产品级标准管理 ？基于IEC 61850的域级标准管理 ？基于IEC 61850的过渡标准管理 ？基于IEC 61850的私有命名空间管理 ？在CDC级别提供IEC 61850数据模型映射的标准开发 ？IEC 61850域配置文件的开发和管理（IEC TR 62361-103和IEC TR 61850-7-6的作用基础） 本文件包括技术和工艺方面: 在技术方面，本文档: ？提醒主要的基本需求（主要指系列中承载需求或建议的适当部分） ？列出标准提供的所有可能的灵活性 ？定义每种扩展案例类型允许/可能的灵活性 在流程方面，文档涵盖: ？对如何应用现有IEC 61850对象模型和/或通信服务以及在新的或特定的域（包括私有域）中使用它们可能需要哪些允许的扩展的初步分析。预计将记录该步骤的结果 ？IEC 61850对象模型对新域的扩展。典型的相关工作是识别可以“按原样”重用的现有逻辑节点，确定是否可以扩展现有逻辑节点，或者定义新的逻辑节点 ？使用过渡命名空间的目的和过程，这些命名空间最终有望合并到现有的标准命名空间中 ？标准命名空间的管理 ？私有命名空间的发展

IEC TS 61850-1-2:2020, which is a technical specification, is intended for any users but primarily for standardization bodies that are considering using IEC 61850 as a base standard within the scope of their work and are willing to extend it as allowed by the IEC 61850 standards. This document identifies the required steps and high-level requirements in achieving such extensions of IEC 61850 and provides guidelines for the individual steps.
Within that scope, this document addresses the following cases:
？ The management of product-level standards for products that have an interface based on IEC 61850
？ The management of domain-level standards based on IEC 61850
？ The management of transitional standards based on IEC 61850
？ The management of private namespaces based on IEC 61850
？ The development of standards offering the mapping of IEC 61850 data model at CDC level
？ The development and management of IEC 61850 profiles for domains (underlying the role of IEC TR 62361-103 and IEC TR 61850-7-6)
This document includes both technical and process aspects:
On the technical side, this document:
？ Reminds the main basic requirements (mostly referring to the appropriate parts of the series which host the requirements or recommendations)
？ Lists all possible flexibilities offered by the standards
？ Defines which flexibilities are allowed/possible per type of extension cases
On the process side, the document covers:
？ The initial analysis of how the existing IEC 61850 object models and/or communication services may be applied and what allowed extensions may be required for utilizing them in new or specific domains (including private ones). The results of that step are expected to be documented
？ The extension of the IEC 61850 object models for new domains. The typical associated work is to identify existing logical nodes which can be reused "as is", to determine if existing logical nodes can be extended, or to define new logical nodes
？ The purpose and process to use transitional namespaces, which are expected to be merged eventually into an existing standard namespace
？ The management of standard namespaces
？ The development of private namespaces