CISPR 25:2021 车辆、船只和内燃机.无线电干扰特性.车载接收器保护用限值和测量方法

标准编号：CISPR 25:2021

中文名称：车辆、船只和内燃机.无线电干扰特性.车载接收器保护用限值和测量方法

英文名称：Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers

发布日期：2021-12-16

标准范围

CISPR 25:2021包含测量150 kHz至5 925 MHz频率范围内无线电干扰的限制和程序。本文件适用于车辆、船只、内燃机、拖车、设备以及用于车辆、船只、拖车和设备的任何电子/电气部件。有关频率分配的详细信息，请参阅国际电信联盟（ITU）出版物。这些限制旨在保护（根据制造商指南）安装在车辆中的车载接收器免受同一车辆中的组件/模块产生的干扰。受保护的接收机类型是，例如，广播接收机（声音和电视）、陆地移动无线电、无线电话、业余无线电、公民无线电、卫星导航（全球定位系统等）。）、Wi-Fi、V2X和蓝牙。本文件不包括保护电子控制系统免受射频（RF）发射或瞬态或脉冲型电压波动的影响。这些主题包括在ISO出版物中。本文件中的限值是推荐的，可根据客户（如车辆制造商）和供应商（如部件制造商）之间的约定进行修改。本文件也适用于在车辆交付后添加并连接到车辆线束或车载电源连接器的车辆制造商和供应商。本文件定义了供车辆制造商和供应商使用的测试方法，以协助车辆和部件的设计，并确保车载射频发射的受控水平。本文件中的发射要求不适用于ITU定义的无线电发射机的有意发射，包括其杂散发射。注1？这种排除仅限于那些预期的发射器发射，其作为辐射发射离开EUT并耦合到测量设置中的导线上。对于EUT无线电部分有意产生的频率上的传导传输，此排除不适用。注2？客户和供应商通常使用无线电法规标准来管理无线电发射机杂散发射的影响，除非在测试计划中商定了杂散发射的限值。这第五版取消并取代了2016年出版的第四版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更:包括新的频带，删除TEM细胞上的附件，列入关于测量不确定度的附件，整体提升。

CISPR 25:2021 contains limits and procedures for the measurement of radio disturbances in the frequency range of 150 kHz to 5 925 MHz. This document applies to vehicles, boats, internal combustion engines, trailers, devices and any electronic/electrical component intended for use in vehicles, boats, trailers and devices. Refer to International Telecommunications Union (ITU) publications for details of frequency allocations. The limits are intended to provide protection for on-board receivers installed (per the manufacturer’s guidelines) in a vehicle from disturbances produced by components/modules in the same vehicle. The receiver types to be protected are, for example, broadcast receivers (sound and television), land mobile radio, radio telephone, amateur, citizens' radio, Satellite Navigation (GPS etc.), Wi-Fi, V2X, and Bluetooth. This document does not include protection of electronic control systems from radio frequency (RF) emissions or from transient or pulse-type voltage fluctuations. These subjects are included in ISO publications. The limits in this document are recommended and subject to modification as agreed between the customer (e.g. vehicle manufacturer) and the supplier (e.g. component manufacturer). This document is also intended to be applied by vehicle manufacturers and suppliers which are to be added and connected to the vehicle harness or to an on-board power connector after delivery of the vehicle. This document defines test methods for use by vehicle manufacturers and suppliers, to assist in the design of vehicles and components and ensure controlled levels of on-board radio frequency emissions. The emission requirements in this document are not intended to be applicable to the intentional transmissions from a radio transmitter as defined by the ITU including their spurious emissions.
NOTE 1？This exclusion is limited to those intended transmitter emissions, which leave the EUT as radiated emissions and are coupled onto the wire line in the measurement setup. For conducted transmissions on frequencies intentionally produced by the radio part of an EUT, this exclusion does not apply.
NOTE 2？It is usual for customers and suppliers to use radio regulation standards to manage the effect of spurious emissions from a radio transmitter unless limits of spurious emission are agreed in the test plan.
This fifth edition cancels and replaces the fourth edition published in 2016. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:

1. inclusion of new frequency bands,
2. deletion of the annex on TEM cells,
3. inclusion of annexes on measurement uncertainty,
4. overall improvement.

标准预览图