14 Nov IEC Standard | Surge arresters – Part 8: Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission. IEC Standard | Lightning arresters – Part 2: Expulsion-type lightning arresters. Surge arresters – Part 7: Glossary of terms and definitions from IEC publications , , , , , ,
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It applies to gapless iec 60099 surge arresters as defined in IECto surge arresters containing both series and parallel gapped iec 60099 — rated 52 kV iec 60099 less as defined in Iec 60099 and metal-oxide surge arresters with external series gap for overhead ic and distribution lines EGLA as defined in IEC This edition includes the following significant technical changes with respect to the previous edition: Considering the particular design concept and the special application on overhead transmission and distribution lines, some unique requirements and tests are introduced, such as the verification test for coordination between insulator withstand and EGLA protective level, the follow current interrupting test, mechanical load tests, etc.
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TC 37 – Surge arresters rss. TC 37 – Surge arresters rss. Do you iec 60099 a multi-user copy? Typical maximum residual voltages are given in Annex F.
This document defines surge arresters to protect the insulator assembly from lightning-caused over-voltages only. We accept all major credit cards American Express, Mastercard and VisaPayPal and bank transfers iec 60099 form of payment. iec 60099
This edition includes iec 60099 following significant technical changes with respect to the previous edition regarding the new surge arrester classification introduced in IEC This third edition cancels and replaces the second edition published in Metal-oxide surge arresters with external series gap EGLA for overhead transmission and distribution lines of a. In addition to testing to evaluate the performance of the MO resistors, procedures for evaluating the performance of the EGLA series gaps have been introduced.
Therefore, and since metal-oxide resistors are not permanently connected to the line, the following items are not considered for this document: This edition 6009 iec 60099 technical revision.
The Lightning discharge capability test has been iec 60099 re-written and re-named iec 60099 Test to verify the repetitive charge transfer rating, Qrs with lightning discharges to reflect changes introduced in IEC Ed.
Do you need a multi-user copy? The user of surge arresters will, in that iec 60099, not be required to apply the whole process introduced here to any new installation and the selection of characteristics resulting from 6009 practice may iec 60099 continued.
Related publications IEC The following test report forms are related: The following test iec 60099 forms are related: This second edition cancels and replaces the first edition published in Our prices are in Swiss francs CHF. This edition constitutes a 600999 revision.
Designs with the EGLA’s external series gap installed in parallel to an insulator are not covered by this document.
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Annexes H and I present comparisons and calculations between old iec 60099 discharge classification and new charge classification. Related publications IEC Surge arrester residual iec 60099 is a major parameter to which most users have paid a lot of attention to when selecting the type and rating.
It is likely, however, that for some systems, or in some countries, the requirements on system reliability and design are sufficiently uniform, so that the recommendations of the present iec 60099 may lead to the definition of narrow ranges of arresters. Our iec 60099 are in Swiss francs CHF.
In Annex J, some aspects regarding the old type of SiC gapped arresters are discussed.