新的！CISPR TR 18-2:20 17作为CISPR TR 18-2:20 17 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。 CISPR TR 18-2:20 17是一份技术报告，适用于可能对无线电接收造成干扰的架空电力线和高压设备的无线电噪声。该出版物覆盖的频率范围为0.15 MHz至3GHz。推荐了建立电力线和设备无线电噪声场限值的一般程序，以及作为示例的典型值和测量方法。限制条款集中在低频和中频段，只有在这些频段，根据既定惯例，有充分的证据可用。没有给出在30MHz至3GHz频带中保护无线电接收的限制的示例，因为该频带中的测量方法和问题的某些其他方面尚未完全解决。现场测量及服务经验显示，在正常运作时，频率高于300MHz的电力线所发出的噪音水平非常低，故不太可能对电视接收造成干扰。计算作为示例给出的限制值，以便在通常可能遇到的最不利条件下，在用于a.m.无线电广播的无线电频带中的适当发射机的公认服务区域边界处的广播接收提供合理程度的保护。这些限值旨在为线路的规划阶段提供指导，并在施工后和使用寿命期间根据国家标准或其他规范检查线路的性能。用于检查是否符合限值的测量设备和方法应符合相应的CISPR规范，例如基本标准系列CISPR 16，参见[1]。CISPR TR 18-2第三版适应了IEC发布的技术报告的现代结构和内容。CISPR TR 18-2的第二版经历了彻底的编辑和适应现代术语。第三版现在还涵盖了300 MHz至3 GHz范围内高压架空电力线和变电站辐射干扰的适当测量方法，因为间隙型放电可能是干扰现代数字无线电通信的潜在噪声源。 关键词:架空电力线和高压设备无线电噪声

NEW!CISPR TR 18-2:2017 is available as CISPR TR 18-2:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

CISPR TR 18-2:2017 which is a Technical Report, applies to radio noise from overhead power lines and high-voltage equipment which may cause interference to radio reception. The frequency range covered by this publication is 0,15 MHz to 3 GHz. A general procedure for establishing the limits of the radio noise field from the power lines and equipment is recommended, together with typical values as examples, and methods of measurement. The clause on limits concentrates on the low frequency and medium frequency bands and it is only in these bands where ample evidence, based on established practice, is available. No examples of limits to protect radio reception in the frequency band 30 MHz to 3 GHz have been given, as measuring methods and certain other aspects of the problems in this band have not yet been fully resolved. Site measurements and service experience have shown that levels of noise from power lines at frequencies higher than 300 MHz in normal operation are so low that interference is unlikely to be caused to television reception. The values of limits given as examples are calculated to provide a reasonable degree of protection to the reception of broadcasting at the boundary of the recognized service areas of the appropriate transmitters in the radio frequency bands used for a.m. radio broadcasting, in the least favourable conditions likely to be generally encountered. These limits are intended to provide guidance at the planning stage of the line and national standards or other specifications against which the performance of the line may be checked after construction and during its useful life. The measuring apparatus and methods used for checking compliance with limits should comply with the respective CISPR specifications, as e.g. the basic standards series CISPR 16, see [1]. This third edition of CISPR TR 18-2 is adapted to the modern structure and content of technical reports issued by IEC. The second edition of CISPR TR 18-2 underwent thorough edition and adaptation to modern terminology. This third edition now also covers an adequate method of measurement for radiated disturbances from HV overhead power lines and substations in the range 300 MHz to 3 GHz, since gap-type discharges can be a potential noise source disturbing modern digital radio communication.

Keywords: radio noise from overhead power lines and high-voltage equipment