| Publication CODE |
Title |
| NBN EN IEC 61557-5:2021 (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 5: RESISTANCE TO EARTH |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
14.00 €
|
3. |
Description
IEC 61557-5:2019 is available as IEC 61557-5:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-5:2019 specifies the requirements applicable to measuring equipment for measuring the resistance to earth using an AC voltage. IEC 61557-5:2019 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) definitions and symbols in Clause 3 modified;
b) subclauses in Clause 4 restructured and aligned with other parts of the series;
c) limits for reduced voltages 25 V RMS or 35 V peak removed from 4.5;
d) requirements for clamps added;
e) marking for rated voltages to earth and measurement category added to Clause 5;
f) warning about absence of hazardous voltage added in Clause 5;
g) the term "percentage operating uncertainty" replaced by "operating uncertainty" in Clause 6;
h) equation for uncertainty corrected in Table 1;
i) new Annex A on test measurements with loop clamps added.
|
| 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 |
|
