CISPR 16-4-3/TR-2007 无线电干扰规范和抗扰度测量设备和测量方法.第4-3部分:不确定度,统计学和限值建模.统计考虑批量产品的EMC符合性确定

标准号：CISPR 16-4-3/TR-2007
中文标准名称：无线电干扰规范和抗扰度测量设备和测量方法.第4-3部分:不确定度,统计学和限值建模.统计考虑批量产品的EMC符合性确定
英文标准名称：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
标准类型：L06
发布日期：2007/1/1 12:00:00
实施日期：2007/1/1 12:00:00
中国标准分类号：L06
国际标准分类号：33.100.10;33.100.20
引用标准：IEC 60050-161-1990;CISPR 16-4-2
适用范围：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).