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STN EN IEC 60099-8

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Name: STN EN IEC 60099-8
Validity: Valid
Number of pages: 76
Language:
EN
Paper: 28,80€
Electronic version a) Only read (without ability to print and copy) 25,92€
b) Without ability to print, with ability to copy (printscreen) 28,80€
c) With ability to print and copy (printscreen) 37,44€
Slovak title Zvodiče prepätia. Časť 8: Zvodiče prepätia na báze oxidov kovov s vonkajším sériovým iskriskom (EGLA) pre nadzemné prenosové a distribučné vedenia sústav so striedavým napätím nad 1 kV
English title Surge arresters - Part 8: Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV
Release Date: 01. 02. 2019
Date of withdrawal:
ICS: 29.240.10
Sorting character/National clasification code 35 4870
Level of incorporation: idt EN IEC 60099-8:2018, idt IEC 60099-8:2017
Official Journal 01/19
Amendments
Replaced by:
Repleces: STN EN 60099-8:2011-12 (35 4870)
Note in Official Journal:
Subject of the standard: IEC 60099-8:2017 covers metal-oxide surge arresters with external series gap (externally gapped line arresters (EGLA)) that are applied on overhead transmission and distribution lines, only to protect insulator assemblies from lightning-caused flashovers. This document defines surge arresters to protect the insulator assembly from lightning-caused over-voltages only. Therefore, and since metal-oxide resistors are not permanently connected to the line, the following items are not considered for this document: - switching impulse spark-over voltage; - residual voltage at steep current and switching current impulse; - thermal stability; - long-duration current impulse withstand duty; - power-frequency voltage versus time characteristics of an arrester; - disconnector test; - aging duties by power-frequency voltage.
Preview: Náhľad normy (PDF)