STN EN IEC 61557-7
| Name: | STN EN IEC 61557-7 |
| Validity: | Withdrawn |
| Number of pages: | 24 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| 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 7: Sled fáz |
| English title | Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence |
| Release Date: | 01. 08. 2022 |
| Date of withdrawal: | 01. 05. 2023 |
| ICS: | 17.220.20, 29.080.01, 29.240.01 |
| Sorting character/National clasification code | 35 6230 |
| Level of incorporation: | idt EN IEC 61557-7:2022, idt IEC 61557-7:2019 |
| Official Journal | 07/22 |
| Amendments | |
| Replaced by: | STN EN IEC 61557-7:2023-05 (35 6230) |
| Repleces: | STN EN 61557-7:2007-12 (35 6230) |
| Note in Official Journal: | |
| Subject of the standard: | IEC 61557-7:2019 specifies the requirements applicable to measuring equipment for testing the phase sequence in three-phase distribution systems. Indication of the phase sequence can be mechanical, visual and/or audible. This document does not apply to additional measurements for other quantities. It does not apply to monitoring relays. IEC 61557-7:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following changes with respect to the previous edition: a) alignment of the structure with that of the whole IEC 61557 series; b) updated requirements in 4.3 in accordance with new editions of IEC 61010-1 and IEC 61010-031; |
| Preview: | Náhľad normy (PDF) |