| Publication CODE |
Title |
| NBN EN IEC 61557-4:2021 (2021-12) |
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 4: RESISTANCE OF EARTH CONNECTION AND EQUIPOTENTIAL BONDING |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
14.00 €
|
3. |
Description
IEC 61557-4:2019 is available as IEC 61557-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-4:2019 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including their connections and terminals, with an indication of the measured value or an indication of the limits. IEC 61557-4:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) complement to the measurement category in Clause 4;
b) correction of the equation for operating uncertainty;
c) complement to the requirements for measuring with DC;
d) alignment of the structure with that of the whole IEC 61557 series.
|
| Class |
C
|
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
|
DE version
|
EN version
|
FR version
|
|
| Committee |
CLC/TC 85X
Measuring equipment for electrical and electromagnetic quantities
|
| BEC Approval |
2021-11-10 |
| NBN Approval |
2021-12-15 |
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2021-11-10 |
| Date of announcement (d.o.a.) |
2022-02-10 |
| Date of publication (d.o.p.) |
2022-08-10 |
| Date of withdrawal former edition (d.o.w.) |
2024-11-10 |
| IEC file modification date |
2021-12-11 |
|
