SIST EN IEC 62477-1:2024/AC:2024

SLOVENSKI STANDARD
01-september-2024
Varnostne zahteve za močnostne elektronike pretvorniške sisteme in opremo - 1.
del: Splošno - Popravek AC (IEC 62477-1:2022/COR1:2024)
Safety requirements for power electronic converter systems and equipment - Part 1:
General (IEC 62477-1:2022/COR1:2024)
Sicherheitsanforderungen an Leistungselektronik-Umrichtersysteme und -betriebsmittel -
Teil 1: Allgemeines (IEC 62477-1:2022/COR1:2024)
Exigences de sécurité applicables aux systèmes et matériels électroniques de
conversion de puissance - Partie 1: Généralités (IEC 62477-1:2022/COR1:2024)
Ta slovenski standard je istoveten z: EN IEC 62477-1:2023/AC:2024-04
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62477-
1:2023/AC:2024-04
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2024
ICS 29.200
English Version
Safety requirements for power electronic converter systems and
equipment - Part 1: General
(IEC 62477-1:2022/COR1:2024)
Exigences de sécurité applicables aux systèmes et Sicherheitsanforderungen an Leistungselektronik-
matériels électroniques de conversion de puissance - Partie Umrichtersysteme und -betriebsmittel - Teil 1: Allgemeines
1: Généralités (IEC 62477-1:2022/COR1:2024)
(IEC 62477-1:2022/COR1:2024)
This corrigendum becomes effective on 26 April 2024 for incorporation in the English language version of the EN.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62477-1:2023/AC:2024-04 E

Endorsement notice
The text of the corrigendum IEC 62477-1:2022/COR1:2024 was approved by CENELEC as EN IEC 62477-1:2023/AC:2024-04 without any
modification.
IEC 62477-1:2022/COR1:2024 – 1 –
© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 62477-1 IEC 62477-1
Edition 2.0  2022-05 Édition 2.0  2022-05

SAFETY REQUIREMENTS FOR POWER EXIGENCES DE SÉCURITÉ APPLICABLES AUX
ELECTRONIC CONVERTER SYSTEMS AND SYSTÈMES ET MATÉRIELS ÉLECTRONIQUES
EQUIPMENT DE CONVERSION DE PUISSANCE

Part 1: General Partie 1: Généralités

CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

3.33
Replace the term and definition (but not the note) with the following new term and definition:
(electrical) installation
assembly of electrical equipment to fulfil specific purposes
Note 1 to entry: The word "installation" is also used in this document to denote the process of installing a PECS. In
these cases, the word does not appear in italics.
[SOURCE: IEC 60050-826:2022, 826-10-01, modified – the note to entry has been added.]
3.36
Replace, in the term, “LV” with “LV” (in bold).
3.68
Replace, in the term, “SCPD” with “SCPD” (in normal bold).
3.74
Replace, in the term, “SPD” with “SPD” (in bold).
4.3.1 General
Replace the sixth paragraph with the following new paragraph:
For marking, see 6.2.1.4.
4.3.3 Short-circuit coordination (backup protection)
Replace the fifth paragraph with the following new paragraph:
IEC 62477-1:2022-05/COR1:2024-04(en-fr)

– 2 – IEC 62477-1:2022/COR1:2024
© IEC 2024
Compliance shall be checked by
• visual inspection in 5.2.1, and
• simulation or tests of 5.2.4.4 and 5.2.4.5
Figure 5 – Time-voltage zones for accessible circuits of DVC As and DVC B – DC during
single fault conditions
Replace Figure 5 with the following new figure:
120 120
10 100 1000 10000
Time(ms)
DVC As dry DC DVC B dry DC DVC As wet and saltwater wet DC

4.4.7.1.4 Overvoltage category (OVC)
Replace, in the second paragraph, the second bullet point starting with “Equipment of
overvoltage category III (OVC III) is equipment…”, with the following new bullet point:
• PECS of overvoltage category III (OVC III) is equipment in fixed installations and for cases
where the reliability and the availability of the equipment are subject to special
requirements.
4.4.7.2.2 SPD monitoring
Replace the first paragraph with the following new paragraph:
If the PECS manufacturer bundles an external SPD with their product for the purpose of
overvoltage category reduction, this device shall have a monitoring circuit as required in
4.4.7.2.3 or 4.4.7.2.4 that enables the PECS to create an indication when the device is damaged
by an overvoltage. If the SPD is internal to a PECS, the test of 5.2.3.15 applies.
4.4.7.4.2 Clearances for reinforced insulation
Replace in the first paragraph, the first bullet point with the following new text:
• the next higher value of impulse withstand voltage in column 1 of Table 8;
Voltage DC (V)
IEC 62477-1:2022/COR1:2024 – 3 –
© IEC 2024
4.4.7.4.5 Clearance to conductive enclosures
Replace, in the second paragraph, "During and following" with the following:
"After"
4.11.10.3 Connection to external conductors
Replace the last paragraph with the following new paragraph:
For marking, see 6.3.7.4.1.
4.12.6 Strain relief
Replace, in the third paragraph, item c) with the following new text:
c) the cord shall not be damaged when subjected to a torque of the value and time shown in
5.2.2.8 as close as possible to the external end of the cord strain relief or bushing;
Table 23 – Test overview
Replace the fourth row with the following new row:
Clearance and creepage X  4.4.7.4, 4.4.7.5 5.2.2.1
distances test
5.2.2.4.2.1 General
Replace, in the fourth paragraph, "During" with:
"After"
5.2.3.3 Alternative to impulse withstand voltage test (type test, sample test)
Add, in the fifth paragraph, after the last sentence, the following new sentence:
The altitude correction according to Table 26 applies.

– 4 – IEC 62477-1:2022/COR1:2024
© IEC 2024
Figure 18 – Protective equipotential bonding impedance test for separate PECS with
power fed from the PECS with protection for the power cable
Replace Figure 18 with the following new fi
...