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CISPR 25-ed.5.0
Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of on-board receivers
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STANDARD published on 16.12.2021
The information about the standard:
Designation standards: CISPR 25-ed.5.0
Publication date standards: 16.12.2021
SKU: NS-1045524
The number of pages: 372
Approximate weight : 1147 g (2.53 lbs)
Country: International technical standard
Category: Technical standards CISPR
Annotation of standard text CISPR 25-ed.5.0 :
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: inclusion of new frequency bands, deletion of the annex on TEM cells, inclusion of annexes on measurement uncertainty, overall improvement. CISPR 25:2021 contient des limites et des procedures pour la mesure des perturbations radioelectriques dans la plage de frequences de 150 kHz a 5 925 MHz. Le present document s’applique aux vehicules, bateaux, moteurs a combustion interne, remorques, appareils et tout composant electronique/electrique destine a etre utilise dans les vehicules, bateaux, remorques et appareils. Consulter les publications de l’Union Internationale des Telecommunications (UIT) pour plus d’informations sur les allocations de frequences. Ces limites visent a proteger les recepteurs embarques installes (conformement aux lignes directrices du fabricant) dans un vehicule contre les perturbations produites par les composants/modules dans le meme vehicule. Les types de recepteurs a proteger sont, par exemple, les recepteurs de radiodiffusion (son et television), de radiocommunications mobiles terrestres, de radiotelephonie, de radioamateurs, de service radio de bande banalisee, de navigation par satellite (GPS, etc.), Wi-Fi, V2X et Bluetooth. Le present document ne traite pas de la protection des systemes de commande electroniques contre les emissions de radiofrequences (RF) ou les fluctuations de tensions transitoires ou impulsionnelles. Ces sujets sont pris en compte dans des publications de l’ISO. Les limites du present document sont recommandees et sujettes a modification dans le cadre d’un accord entre le client (par exemple le fabricant de vehicules) et le fournisseur (par exemple le fabricant de composants). Le present document est egalement destine a etre applique par les fabricants de vehicules et fournisseurs de composants et d’equipements destines a etre ajoutes et raccordes au faisceau du vehicule ou a une prise d’alimentation embarquee apres livraison du vehicule. Le present document definit des methodes d’essai a destination des constructeurs et fournisseurs de vehicules, en vue de les aider a concevoir les vehicules et les composants, et a maintenir a des niveaux acceptables les emissions de radiofrequences des equipements radioelectriques embarques. Les exigences d’emission du present document ne sont pas destinees a etre appliquees aux emissions intentionnelles d’un emetteur radio definies par l’UIT, y compris leurs emissions parasites. NOTE 1 Cette exclusion est limitee aux emissions de l’emetteur prevues, produites par l’EUT sous forme d’emissions rayonnees et couplees a la ligne filaire dans le montage de mesure. Pour les emissions conduites a des frequences produites intentionnellement par la partie radio d’un EUT, cette exclusion ne s’applique pas. NOTE 2 Il est courant que les clients et les fournisseurs utilisent les normes de reglementation des radiocommunications pour gerer l’effet des emissions parasites d’un emetteur radio, a moins que les limites des emissions parasites ne soient convenues dans le plan d’essai Cette cinquieme edition annule et remplace la quatrieme edition parue en 2016. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a l’edition precedente: a) ajout de nouvelles bandes de frequences; b) suppression de l’annexe relative aux cellules TEM; c) ajout d’annexes relatives a l’incertitude de mesure; d) amelioration generale.
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