STN EN IEC 60099-8
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) |