: Includes guidance on diagnostic programs, such as measuring leakage current to monitor arrester degradation. IEC 60099-5:2018 - Afnor EDITIONS
The 2018 edition is a comprehensive document, containing of detailed information and is priced at CHF 475.00 from the IEC Webstore. Its table of contents is structured to guide the user through the entire process of surge arrester deployment:
Surge arresters play a crucial role in ensuring the reliability and safety of electrical power systems. They help prevent damage to equipment and infrastructure by limiting the voltage surges that can occur during faults or switching operations. The IEC 60099-5 standard provides guidelines for the design, testing, and application of surge arresters, which helps manufacturers, engineers, and operators ensure that these devices meet the necessary performance and safety requirements.
The modern edition of the standard, IEC 60099-5:2018 , applies to a wide spectrum of surge protection technologies. It coordinates tightly with the design and testing specifications of other entries in the IEC 60099 series: iec 600995 pdf
The IEC 60099 series of standards ensures these vital devices perform reliably. Developed by the International Electrotechnical Commission (IEC), these documents define the requirements, classifications, testing procedures, and application guidelines for all types of surge arresters, harmonizing safety and performance across the global industry.
Packed with mathematical models, calculation examples, and spreadsheet templates for estimating line surge parameters and modeling surge propagation. 7. Why Engineers Seek the Official PDF
The 2018 revision constitutes a significant technical update from the 2013 version, aligning with new classification standards introduced in IEC 60099-4:2014. Charge vs. Energy Classification: : Includes guidance on diagnostic programs, such as
is the maximum designated root-mean-square (r.m.s.) value of power-frequency voltage that may be applied continuously between the arrester terminals. The standard dictates that Uccap U sub c
If you're looking for an IEC 60099-5 PDF, you can expect to find a detailed document that outlines the following:
Older editions categorized arresters by rigid "Line Discharge Classes" (Classes 1 through 5). Modern iterations replace this with a precise system based on explicit thermal energy ratings ( Wthcap W sub t h end-sub ) and charge transfer ratings ( Qrscap Q sub r s They help prevent damage to equipment and infrastructure
This standard acts as an application guide rather than a test specification (like IEC 60099-4 ). It covers several types of surge protective devices:
| Part | Title | Focus | | :--- | :--- | :--- | | | Metal-oxide surge arresters without gaps for AC systems | The main product standard for modern gapless metal-oxide arresters. | | IEC 60099-5 | Selection and application recommendations | The user's guide and the subject of this article. | | IEC 60099-6 | Surge arresters containing both series and parallel gapped structures (rated 52 kV and less) | Covers a specific type of gapped arrester. | | IEC 60099-8 | Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines | Defines arresters used directly on power lines. | | IEC 60099-11 | Surge arresters for transmission line protection (IEC/IEEE dual logo standard) | A newer standard developed in cooperation with the IEEE. | | IEC 60099-1 | Non-linear resistor type gapped arresters for AC systems | A historical standard, primarily replaced by newer parts. |