标准摘要
[中文适用范围]： IEC 62820-1-1:2026 RLV 包含该标准的正式版本及其修订对照版。修订对照版仅以英文提供，便于快速、便捷地比对正式标准与其前版之间的所有变更。IEC 62820-1-1:2026 规定了楼宇对讲系统及用于楼宇入口设备的技术要求。 [外文原描述]： IEC 62820-1-1:2026 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 62820-1-1:2026 specifies the technical requirements for building intercom systems and equipment used for building entry.
英文名称Building intercom systems - Part 1-1: System requirements - General