FprHD 60364-7-712:2025
(Main)Low-voltage electrical installations - Part 7-712: Requirements for special installations or locations - Solar photovoltaic (PV) power supply installations
Low-voltage electrical installations - Part 7-712: Requirements for special installations or locations - Solar photovoltaic (PV) power supply installations
IEC 60364-7-712:2025 applies to electrical installations of PV systems. The equipment of a PV system, like any other item of equipment, is dealt with only so far as its selection and application in the installation is concerned. A PV installation comprises all equipment from PV modules(s) up to the connection point to other parts of the installation, for example a distribution board or the utility supply point (point of connection). This part of IEC 60364 includes requirements on electrical installation resulting from the installation of PV power supply installations. Requirements relating to the possible installation of energy storage systems (e.g. batteries) are included. Requirements are also included for PV installations for island mode operation described in IEC 60364-8-82. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) The technical content has been extensively revised and expanded, taking into account experience gained in the construction and operation of PV installations, and developments made in technology, since the second edition was published. b) Key changes include requirements for PV power generation plants, direct connection to battery circuits, introduction of DC bus circuit and DCUs.
Installations électriques à basse tension - Partie 7-712: Exigences applicables aux installations ou emplacements spéciaux - Installations d'énergie solaire photovoltaïque (PV)
IEC 60364-7-712:2025 s’applique aux installations électriques des systèmes PV. Les équipements d’un système PV, ainsi que tout autre élément, ne sont traités que du point de vue de leur choix et mise en œuvre dans l’installation. Une installation photovoltaïque comprend tous les équipements, depuis le ou les modules photovoltaïques jusqu’au point de connexion avec d’autres parties de l’installation (par exemple un tableau de répartition ou le point d’alimentation du réseau de distribution public [point de connexion]). La présente partie de l’IEC 60364 inclut des exigences relatives à l’installation électrique résultant de la mise en place d’installations d’alimentation en énergie photovoltaïque. Des exigences concernant l’installation éventuelle de systèmes de stockage d’énergie (par exemple des batteries) sont incluses. Des exigences sont également incluses pour les installations photovoltaïques en mode îlot décrites dans l’IEC 60364-8-82. Cette troisième édition annule et remplace la deuxième édition parue en 2017. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) le contenu technique a été considérablement revu et étendu, pour tenir compte du retour d’expérience dans la construction et l’exploitation des installations photovoltaïques, et des développements technologiques depuis la parution de la seconde édition. b) Les principales modifications concernent les exigences relatives aux centrales photovoltaïques, la connexion directe aux circuits de batterie, l’introduction du circuit de bus en courant continu et les DCU.
Nizkonapetostne električne inštalacije - 7-712. del: Zahteve za posebne inštalacije ali lokacije - Sončni fotonapetostni (PV) napajalni sistemi
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prHD 60364-7-712:2023
01-september-2023
Nizkonapetostne električne inštalacije - 7-712. del: Zahteve za posebne inštalacije
ali lokacije - Sončna fotonapetostna (PV) napajalna omrežja
Low voltage electrical installations - Part 7-712: Requirements for special installations or
locations - Solar photovoltaic (PV) power supply systems
Installations électriques à basse tension - Partie 7-712: Exigences applicables aux
installations ou emplacements spéciaux - Installations d'énergie solaire photovoltaïque
(PV)
Ta slovenski standard je istoveten z: prHD 60364-7-712:2023
ICS:
27.160 Sončna energija Solar energy engineering
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
oSIST prHD 60364-7-712:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prHD 60364-7-712:2023
oSIST prHD 60364-7-712:2023
64/2628/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60364-7-712 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-07-07 2023-09-29
SUPERSEDES DOCUMENTS:
64/2514/CD, 64/2620/CC
IEC TC 64 : ELECTRICAL INSTALLATIONS AND PROTECTION AGAINST ELECTRIC SHOCK
SECRETARIAT: SECRETARY:
Germany Mr Wolfgang Niedenzu
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 8,SC 8B,TC 20,TC 22,SC 22F,SC 23E,SC
23K,SC 32B,SC 37A,TC 82,TC 85,TC 120,TC
Other TC/SCs are requested to indicate their interest, if any, in this
121,SC 121A,SC 121B,PC 128,SyC LVDC,SyC
CDV to the secretary.
Smart Energy
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TITLE:
Low voltage electrical installations - Part 7-712: Requirements for special installations or locations -
Solar photovoltaic (PV) power supply systems
PROPOSED STABILITY DATE: 2028
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oSIST prHD 60364-7-712:2023
64/2628/CDV – 2 – IEC CDV 60364-7-712 © IEC 2023
NOTE FROM TC/SC OFFICERS:
Internal
oSIST prHD 60364-7-712:2023
IEC CDV 60364-7-712 © IEC 2023 – 3 – 64/2628/CDV
1 CONTENTS
3 FOREWORD . 7
4 INTRODUCTION . 9
5 712 Solar photovoltaic (PV) power supply installations . 11
6 712.1 Scope . 11
7 712.2 Normative references . 11
8 712.3 Terms and definitions. 13
9 712.3.1 13
10 712.31 Purposes, supplies and structure . 19
11 712.31.101 PV installation configurations . 19
12 712.4 Protection for safety . 31
13 712.4.101 General . 31
14 712.41 Protection against electric shock . 31
15 712.410 Introduction . 31
16 712.410.3 General Requirements . 31
17 712.411 Protective measure: automatic disconnection of supply . 32
18 712.411.3 Requirements for fault protection . 32
19 712.412 Protective measure: double or reinforced insulation . 34
20 712.412.2 Requirements for basic protection and fault protection . 34
21 712.414 Protective measure: extra-low-voltage provided by SELV and PELV . 35
22 712.414.101 . 35
23 712.42 Protection against thermal effects . 35
24 712.421 Protection against fire caused by electrical equipment . 35
25 712.421.101 . 35
26 712.421.102 Provisions against the thermal effects due to insulation
27 faults on the DC side . 36
28 712.43 Protection against overcurrent . 37
29 712.430 . 37
30 712.430.3 General requirements . 37
31 712.432 Nature of protective devices . 38
32 712.432.101 . 38
33 712.433 Protection against overload current . 38
34 712.433.1 Coordination between conductors and overload protective devices . 38
35 712.433.2 Position of devices for overload protection . 41
36 712.433.101 Protection of PV array cable . 42
37 712.433.102 Protection of PV AC supply cable . 42
38 712.434 Protection against short-circuit currents . 42
39 712.434.101 . 42
40 712.44 Protection against voltage disturbances and electromagnetic disturbances . 42
41 712.443 Protection against transient overvoltages of atmospheric origin or due
42 to switching . 42
43 712.443.4 Overvoltage control . 42
44 712.443.5 Risk assessment method . 42
45 712.5 Selection and erection of electrical equipment . 43
46 712.51 Common rules . 43
47 712.51.101 43
Internal
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48 712.510 Introduction . 43
49 712.510.3 General . 43
50 712.511 Compliance with standards . 43
51 712.511.1 43
52 712.512 Operational conditions and external influences . 44
53 712.512.1 Operational conditions . 44
54 712.513 Accessibility . 45
55 712.513.101 . 45
56 712.514 Identification . 45
57 712.514.101 Safety marking . 45
58 712.514.102 Live parts marking . 46
59 712.514.103 Isolation marking . 46
60 712.514.104 Equipment marking . 46
61 712.514.105 Requirements for signs . 46
62 712.514.106 Labelling of disconnection devices . 46
63 712.514.107 Documentation . 46
64 712.514.2 Wiring systems . 46
65 712.515 Prevention of mutual detrimental influence . 47
66 712.515.101 . 47
67 712.515.102 Selection and erection of PV modules in relation with
68 external influences . 47
69 712.52 Wiring systems . 48
70 712.521 Types of wiring systems . 48
71 712.521.101 Type . 48
72 712.521.102 . 48
73 712.521.103 General . 48
74 712.521.104 Wiring loops . 49
75 712.521.105 String wiring and DCU string wiring . 49
76 712.521.106 String wiring harness . 49
77 712.522 Selection and erection of wiring systems in relation to external
78 influences . 51
79 712.522.101 Installation method . 51
80 712.523 Current-carrying capacities . 51
81 712.523.101 . 51
82 712.524 Cross-sectional areas of conductors . 51
83 712.524.1 51
84 712.526 Electrical connections . 53
85 712.526.101 . 53
86 712.526.102 Connectors on the DC side . 53
87 712.526.103 Wiring installation in combiner boxes . 53
88 712.527 Selection and erection of wiring systems to minimize spread of fire . 53
89 712.53 Devices for protection for safety, isolation, switching, control and monitoring . 53
90 712.531 Equipment for protection against electric shock . 53
91 712.531.2 Devices for automatic disconnection of supply . 53
92 712.532 Devices and precautions for protection against thermal effects . 54
93 712.532.101 Protection against thermal effects due to insulation faults
94 which includes the use of an IMD . 54
95 712.533 Devices for protection against overcurrent . 54
96 712.533.1 General requirements . 54
Internal
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97 712.534 Devices for protection against transient overvoltages . 55
98 712.534.1 General . 55
99 712.534.4 Selection and erection of SPDs . 55
100 712.536 Isolation and switching . 56
101 712.536.2 Isolation.
...
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