Low-voltage electrical installations - Part 7-751: Requirements for special installations or locations - Low voltage generating sets

Installations électriques à basse tension - Partie 7-751: Exigences pour les installations et emplacements spéciaux - Groupes générateurs à basse tension

Nizkonapetostne električne inštalacije - 7-751. del: Zahteve za posebne inštalacije ali lokacije - Nizkonapetostni generatorji

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Not Published
Public Enquiry End Date
29-Jun-2025
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
17-Apr-2025
Due Date
04-Sep-2025

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SLOVENSKI STANDARD
01-junij-2025
Nizkonapetostne električne inštalacije - 7-751. del: Zahteve za posebne inštalacije
ali lokacije - Nizkonapetostni generatorji
Low-voltage electrical installations - Part 7-751: Requirements for special installations or
locations - Low voltage generating sets
Installations électriques à basse tension - Partie 7-751: Exigences pour les installations
et emplacements spéciaux - Groupes générateurs à basse tension
Ta slovenski standard je istoveten z: prHD 60364-7-751:2025
ICS:
29.160.20 Generatorji Generators
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

64/2749/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60364-7-751 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-04-11 2025-07-04
SUPERSEDES DOCUMENTS:
64/2671/CD, 64/2730/CC
IEC TC 64 : ELECTRICAL INSTALLATIONS AND PROTECTION AGAINST ELECTRIC SHOCK
SECRETARIAT: SECRETARY:
Germany Mr Wolfgang Niedenzu
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 8B,TC 22,SC 22G,SC 23B,SC 23E,SC 23H,SC
23K,SC 32B,SC 37A,TC 69,TC 82,SC 121A,SC
121B,PC 128
ASPECTS CONCERNED:
Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Low-voltage electrical installations - Part 7-751: Requirements for special installations or locations -
Low voltage generating sets
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

64/2749/CDV 2 IEC 60364-7-751 ED1 © IEC 2025
1 CONTENTS
3 FOREWORD . 3
4 INTRODUCTION . 5
5 751 LOW VOLTAGE GENERATING SETS . 6
6 751.1 Scope . 6
7 751.13 Fundamental principles . 6
8 751.131 Protection for safety . 6
9 751.131.1 General . 6
10 751.2 Normative references . 6
11 751.3 Terms and definitions. 6
12 751.31 Purposes, supplies and structure . 7
13 751.312 Conductor arrangement and system earthing . 7
14 751.312.2 Types of system earthing . 7
15 751.313 Supplies . 7
16 751.313.1 General . 7
17 751.4 Protection for safety . 7
18 751.41 Protection against electric shock . 7
19 751.410 Introduction . 7
20 751.410.3 General requirements . 7
21 751.5 Selection and erection of electrical equipment . 7
22 751.51 Common Rules . 7
23 751.512 Operational conditions and external influences . 7
24 751.53 Devices for protection for safety, isolation, switching, control and monitoring . 8
25 751.530 Can’t number the next clause without this ‘ghost’ clause? . 8
26 751.530.1 Scope . 8
27 751.531 Equipment for protection against electric shock . 8
28 751.531.2 Devices for automatic disconnection of supply . 8
29 Replace the first paragraph with the following: . 8
30 Where an RCD is used: . 8
31 751.533 Devices for protection against overcurrent . 8
32 751.533.101 Where overcurrent protection of the circuit connecting the
33 generating set to the installation is required, the overcurrent protective
34 device shall be located as near as practicable to the terminals of the
35 generating set. . 8
36 The wiring system between the terminals of the generating sets and the
37 overcurrent protective device shall be inherently short-circuit and earth-
38 fault proof. . 8
39 751.536 Isolation and switching . 8
40 751.536.5 Functional switching (control) . 8
41 751.55 Other equipment . 9
42 751.550 Introduction . 9
43 751.550.101 Installations where a generating set is intended to operate
44 as an additional source of supply in parallel with another source . 9
45 Annex B (informative) List of notes concerning certain countries . 10
46 Annex X (normative) Protective measure: enhanced protection under certain
47 conditions . 16
IEC 60364-7-751 ED1 © IEC 2025 3 64/2749/CDV
50 INTERNATIONAL ELECTROTECHNICAL COMMISSION
51 ____________
53 LOW VOLTAGE ELECTRICAL INSTALLATIONS –
55 PART 7-751: REQUIREMENTS FOR SPECIAL INSTALLATIONS OR
56 LOCATIONS – LOW VOLTAGE GENERATING SETS
59 FOREWORD
60 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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103 a technical revision.
104 This edition includes the following significant technical changes with respect to the previous
105 edition:
64/2749/CDV 4 IEC 60364-7-751 ED1 © IEC 2025
106 a) .;
107 b)
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IEC 60364-7-751 ED1 © IEC 2025 5 64/2749/CDV
128 INTRODUCTION
129 The introduction is an optional/conditional element of the text.
130 For rules on the drafting of the introduction, refer to
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