標準號：CISPR 16-4-3/TR-2007
中文標準名稱：無線電干擾規范和抗擾度測量設備和測量方法.第4-3部分:不確定度,統計學和限值建模.統計考慮批量產品的EMC符合性確定
英文標準名稱：Specification for radio disturbance and immunity measuring apparatus and methods – Part 4-3: Uncertainties, statistics and limit modelling – Statistical considerations in the determination of EMC compliance of mass-produced products
標準類型：L06
發布日期：2007/1/1 12:00:00
實施日期：2007/1/1 12:00:00
中國標準分類號：L06
國際標準分類號：33.100.10;33.100.20
引用標準：IEC 60050-161-1990;CISPR 16-4-2
適用范圍：This part of CISPR 16 deals with statistical considerations in the determination of EMCcompliance of mass-produced products.The reasons for such statistical considerations are:a) that the abatement of interference aims that the majority of the appliances to be approvedshall not cause interference;b) that the CISPR limits should be suitable for the purpose of type approval of massproducedappliances as well as approval of single-produced appliances;c) that to ensure compliance of mass-produced appliances with the CISPR limits, statisticaltechniques have to be applied;d) that it is important for international trade that the limits shall be interpreted in the sameway in every country;e) that the National Committees of the IEC which collaborate in the work of the CISPR shouldseek to secure the agreement of the competent authorities in their countries.Therefore, this part of CISPR 16 specifies requirements and provides guidance based onstatistical techniques. EMC compliance of mass-produced appliances should be based on theapplication of statistical techniques that must reassure the consumer, with an 80 % degree ofconfidence, that 80 % of the appliances of a type being investigated comply with the emissionor immunity requirements. Clause 4 gives some general requirements for this so-called80 %/80 % rule. Clause 5 gives more specific requirements for the application of the80 %/80 % rule to emission tests. Clause 6 gives guidance on the application of the CISPR80 %/80 % rule to immunity tests. The 80 %/80 % rule protects the consumer from noncompliantappliances, but it says hardly anything about the probability that a batch ofappliances from which the sample has been taken will be accepted. This acceptanceprobability is very important to the manufacturer. In Annex A, more information is given onacceptance probability (manufacturer’s risk).