IEC TS 61200-102:2020
(Main)Electrical installation guide - Part 102: Application guidelines for low-voltage direct current electrical installations not intended to be connected to a public distribution network
Electrical installation guide - Part 102: Application guidelines for low-voltage direct current electrical installations not intended to be connected to a public distribution network
IEC TS 61200-102:2020(E) applies to low-voltage DC electrical installations entirely supplied by local power sources and having a nominal voltage lower or equal to the low-voltage limit. These installations can be connected to collective or shared private electrical installations.
This document also applies to DC installations according to use cases TIER 2 and TIER 3 of the World Bank defined in ESMAP 008/15 report: Beyond Connections Energy Access Redefined
Vodilo za električne inštalacije – 102. del: Smernice za uporabo enosmernih nizkonapetostnih električnih inštalacij, ki niso predvidene za priključitev na javno distribucijsko omrežje (IEC TS 61200-102:2020)
Ta del standarda IEC 61200 se uporablja za enosmerne nizkonapetostne inštalacije, ki jih povsem napajajo lokalni viri energije in imajo nazivno napetost manjšo ali enako nizki napetostni meji. Te inštalacije je mogoče priključiti na skupne zasebne električne inštalacije skupne uporabe ali souporabe.
Ta dokument se prav tako uporablja za enosmerne inštalacije v skladu s primeri uporabe TIER 2 in TIER 3 Svetovne banke, opredeljenimi v poročilu ESMAP 008/15: Beyond Connections Energy Access Redefined.
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SLOVENSKI STANDARD
01-marec-2024
Vodilo za električne inštalacije – 102. del: Smernice za uporabo enosmernih
nizkonapetostnih električnih inštalacij, ki niso predvidene za priključitev na javno
distribucijsko omrežje (IEC TS 61200-102:2020)
Electrical installation guide - Part 102: Application guidelines for low-voltage direct
current electrical installations not intended to be connected to a public distribution
network (IEC TS 61200-102:2020)
Ta slovenski standard je istoveten z: IEC TS 61200-102:2020
ICS:
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.
IEC TS 61200-102 ®
Edition 1.0 2020-03
TECHNICAL
SPECIFICATION
colour
inside
Electrical installation guide –
Part 102: Application guidelines for low-voltage direct current electrical
installations not intended to be connected to a public distribution network
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 91.140.50 ISBN 978-2-8322-8013-3
– 2 – IEC TS 61200-102:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 8
4.1 Concept of electrical installation . 8
4.2 Architecture and operating modes of installation . 9
5 Local power sources (supplies). 9
6 Loads . 9
6.1 Possible nominal voltages . 9
6.2 Minimum and maximum voltage values . 10
7 Wiring systems . 10
7.1 Type of wiring system . 10
7.2 Identification of conductors and terminals . 10
7.3 Cross-sectional areas of conductors . 11
8 Earthing . 11
8.1 Direction of touch current . 11
8.2 Earthing arrangement . 12
8.3 Protective conductors . 12
8.4 Earthing conductors . 12
9 Protection for safety . 12
9.1 Protection against electric shock . 12
9.1.1 General . 12
9.1.2 Provision for basic protection . 12
9.1.3 Provision for fault protection . 12
9.2 Protection against thermal effects . 16
9.2.1 Protection against electric arc . 16
9.2.2 Risk of explosion with batteries. 16
9.3 Protection against overcurrent . 17
9.3.1 Overload protection . 17
9.3.2 Short-circuit protection . 17
9.4 Protection against overvoltage . 18
10 Inspection . 18
10.1 Initial inspection . 18
10.2 Periodic inspection . 18
Annex A (normative) Architecture and operating modes of installations. 20
A.1 Architecture of installations . 20
A.1.1 Individual installation . 20
A.1.2 Collective installation . 20
A.1.3 Shared installations . 20
A.2 Operating modes . 21
A.2.1 Direct feeding mode. 21
A.2.2 Reverse feeding mode . 21
A.2.3 Autonomous mode . 22
Annex B (informative) Limitation of lengths of cables . 23
B.1 Limit of voltage drop in consumer installations . 23
B.2 Estimation of voltage drop . 23
Annex C (informative) List of notes concerning certain countries . 24
Bibliography . 25
Figure 1 – Concept of DC low-voltage electrical installation . 9
Figure 2 – Colours used for identification of conductors in DC electrical installations . 11
Figure 3 – Downward and upward direct current in human body . 11
Figure 4 – Example of electrical installation in TN-S system . 13
Figure 5 – Estimation of short-circuit level in TN system . 14
Figure 6 – Examples of TN-S systems in DC installation . 15
Figure 7 – Different types of arc fault to be considered . 16
Figure A.1 – Example of an individual installation . 20
Figure A.2 – Example of a collective installation . 20
Figure A.3 – Example of a shared installation . 21
Figure A.4 – DC electrical installation in direct feeding mode . 21
Figure A.5 – DC electrical installation in reverse feeding mode . 21
Figure A.6 – DC electrical installation in autonomous mode . 22
Table 1 – Preferred nominal DC voltages . 10
– 4 – IEC TS 61200-102:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATION GUIDE –
Part 102: Application guidelines for low-voltage direct current electrical
installations not intended to be connected to a public distribution network
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
The main task of IEC technical committees is to prepare International Standards. In exceptional
circumstances, a technical committee may propose the publication of a Technical Specification
when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical Specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 61200-102, which is a Technical Specification, has been prepared by IEC technical
committee 64: Electrical installations and protection against electric shock.
The text of this Technical Specification is based on the following documents:
Draft TS Report on voting
64/2385/DTS 64/2406/RVDTS
Full information on the voting for the approval of this Technical Specification can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61200 series, published under the general title Electrical installation
guide, can be found on the IEC website.
The reader's attention is drawn to the fact that Annex C lists all of the "in-some-country" clauses
on differing practices of a less permanent nature relating to the subject of this document.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website un
...
IEC TS 61200-102 ®
Edition 1.0 2020-03
TECHNICAL
SPECIFICATION
colour
inside
Electrical installation guide –
Part 102: Application guidelines for low-voltage direct current electrical
installations not intended to be connected to a public distribution network
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IEC TS 61200-102 ®
Edition 1.0 2020-03
TECHNICAL
SPECIFICATION
colour
inside
Electrical installation guide –
Part 102: Application guidelines for low-voltage direct current electrical
installations not intended to be connected to a public distribution network
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 91.140.50 ISBN 978-2-8322-8013-3
– 2 – IEC TS 61200-102:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 8
4.1 Concept of electrical installation . 8
4.2 Architecture and operating modes of installation . 9
5 Local power sources (supplies). 9
6 Loads . 9
6.1 Possible nominal voltages . 9
6.2 Minimum and maximum voltage values . 10
7 Wiring systems . 10
7.1 Type of wiring system . 10
7.2 Identification of conductors and terminals . 10
7.3 Cross-sectional areas of conductors . 11
8 Earthing . 11
8.1 Direction of touch current . 11
8.2 Earthing arrangement . 12
8.3 Protective conductors . 12
8.4 Earthing conductors . 12
9 Protection for safety . 12
9.1 Protection against electric shock . 12
9.1.1 General . 12
9.1.2 Provision for basic protection . 12
9.1.3 Provision for fault protection . 12
9.2 Protection against thermal effects . 16
9.2.1 Protection against electric arc . 16
9.2.2 Risk of explosion with batteries. 16
9.3 Protection against overcurrent . 17
9.3.1 Overload protection . 17
9.3.2 Short-circuit protection . 17
9.4 Protection against overvoltage . 18
10 Inspection . 18
10.1 Initial inspection . 18
10.2 Periodic inspection . 18
Annex A (normative) Architecture and operating modes of installations. 20
A.1 Architecture of installations . 20
A.1.1 Individual installation . 20
A.1.2 Collective installation . 20
A.1.3 Shared installations . 20
A.2 Operating modes . 21
A.2.1 Direct feeding mode. 21
A.2.2 Reverse feeding mode . 21
A.2.3 Autonomous mode . 22
Annex B (informative) Limitation of lengths of cables . 23
B.1 Limit of voltage drop in consumer installations . 23
B.2 Estimation of voltage drop . 23
Annex C (informative) List of notes concerning certain countries . 24
Bibliography . 25
Figure 1 – Concept of DC low-voltage electrical installation . 9
Figure 2 – Colours used for identification of conductors in DC electrical installations . 11
Figure 3 – Downward and upward direct current in human body . 11
Figure 4 – Example of electrical installation in TN-S system . 13
Figure 5 – Estimation of short-circuit level in TN system . 14
Figure 6 – Examples of TN-S systems in DC installation . 15
Figure 7 – Different types of arc fault to be considered . 16
Figure A.1 – Example of an individual installation . 20
Figure A.2 – Example of a collective installation . 20
Figure A.3 – Example of a shared installation . 21
Figure A.4 – DC electrical installation in direct feeding mode . 21
Figure A.5 – DC electrical installation in reverse feeding mode . 21
Figure A.6 – DC electrical installation in autonomous mode . 22
Table 1 – Preferred nominal DC voltages . 10
– 4 – IEC TS 61200-102:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATION GUIDE –
Part 102: Application guidelines for low-voltage direct current electrical
installations not intended to be connected to a public distribution network
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all su
...
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