STN EN IEC 61557-9
| Name: | STN EN IEC 61557-9 |
| Validity: | Valid |
| Number of pages: | 44 |
| Language: |
EN
|
| Paper: | 18,90€ |
| Electronic version |
a) Only read (without ability to print and copy)
17,01€ b) Without ability to print, with ability to copy (printscreen) 18,90€ c) With ability to print and copy (printscreen) 24,57€ |
| Slovak title | Elektrická bezpečnosť v nízkonapäťových rozvodných sieťach so striedavým napätím do 1 000 V a s jednosmerným napätím do 1 500 V. Zariadenia na skúšanie, meranie alebo sledovanie činnosti prostriedkov ochrany. Časť 9: Zariadenia na lokalizovanie poruchy izolácie v sieťach IT |
| English title | Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems |
| Release Date: | 01. 07. 2025 |
| Date of withdrawal: | |
| ICS: | 25.040.40 |
| Sorting character/National clasification code | 35 6230 |
| Level of incorporation: | idt IEC 61557-9:2023, idt EN IEC 61557-9:2025 |
| Official Journal | 06/25 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN 61557-9:2017-04 (35 6230) |
| Note in Official Journal: | |
| Subject of the standard: | IEC 61557-9:2023 specifies the requirements for the insulation fault location system (IFLS) that localizes insulation faults in any part of the system in unearthed IT AC systems and unearthed IT AC systems with galvanically connected DC circuits having nominal voltages up to 1 000 V AC, as well as in unearthed IT DC systems with voltages up to 1 500 V DC, independent of the measuring principle. IEC 61557-9:2023 cancels and replaces the third edition published in 2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) new terms and definitions on maximum admissible locating AC and DC currents and voltages; b) the requirements on locating current and locating voltage have been revised; c) performance requirements have been added; d) the test requirements for locating current and locating voltage have been revised; e) the structure of this document has been adapted to that of IEC 61557-1:2019; f) the ... |
| Preview: | Náhľad normy (PDF) |