SIST HD 60364-8-1:2015
(Main)Low voltage electrical installations - Part 8-1: Energy efficiency
Low voltage electrical installations - Part 8-1: Energy efficiency
This part of IEC 60364 provides additional requirements, measures and recommendations for
the design, erection and verification of all types of low-voltage electrical installation including
local production and storage of energy for optimizing the overall efficient use of electricity.
It introduces requirements and recommendations for the design of an electrical installation
within the framework of an energy efficiency management approach in order to get the best
permanent functionally equivalent service for the lowest electrical energy consumption and
the most acceptable energy availability and economic balance.
These requirements and recommendations apply, within the scope of the IEC 60364 series,
for new installations and modification of existing installations.
This standard is applicable to the electrical installation of a building or system and does not
apply to products. The energy efficiency of these products and their operational requirements
are covered by the relevant product standards.
This standard does not specifically address building automation systems.
Errichten von Niederspannungsanlagen - Teil 8-1: Energieeffizienz
Installations électriques basse tension - Partie 8-1: Efficacité énergétique
L'IEC 60364-8-1:2014 fournit des exigences, des mesures et des recommandations supplémentaires pour la conception, la mise en oeuvre et la vérification de tous types d'installations électriques basse tension comportant la production locale et le stockage local de l'énergie pour optimiser l'utilisation efficace globale de l'électricité. Elle présente les exigences et les recommandations pour la conception d'une installation électrique dans le cadre d'une approche de gestion de l'efficacité énergétique afin d'obtenir la fonctionnalité équivalente au meilleur service permanent pour la consommation d'énergie électrique la plus faible, la disponibilité de l'énergie et l'équilibre économique les plus acceptables. Ces exigences et recommandations s'appliquent, dans le domaine d'application de la série IEC 60364, pour les installations neuves et la modification d'installations existantes. La présente norme est applicable à l'installation électrique d'un bâtiment ou d'un système et ne s'applique pas aux produits. L'efficacité énergétique de ces produits et leurs exigences opérationnelles sont couvertes par les normes de produits concernées. La présente norme ne traite pas spécifiquement des systèmes d'automatisation de bâtiments.
Nizkonapetostne električne inštalacije - 8-1. del: Energijska učinkovitost
Ta del standarda IEC 60364 določa dodatne zahteve, ukrepe in priporočila za zasnovo, postavitev in preverjanje vseh vrst nizkonapetostnih električnih inštalacij, vključno z lokalno proizvodnjo in shranjevanjem energije za optimizacijo celotne učinkovite uporabe električne energije. Uvaja zahteve in priporočila za zasnovo električnih inštalacij v okviru pristopa upravljanja energijske učinkovitosti, da bi dobili najboljšo stalno funkcionalno enakovredno storitev za najnižjo porabo električne energije in najbolj sprejemljivo razpoložljivost energije ter gospodarsko ravnotežje.
Te zahteve in priporočila veljajo, v okviru skupine standardov IEC 60364, za nove inštalacije in spremembe obstoječih inštalacij. Ta standard velja za električno inštalacijo zgradbe ali sistema in ne velja za izdelke. Energijsko učinkovitost teh izdelkov in njihovih obratovalnih zahtev določajo ustrezni standardi za izdelke. Ta standard se ne nanaša neposredno na gradnjo sistemov za avtomatizacijo.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST HD 60364-8-1:2015
01-april-2015
1L]NRQDSHWRVWQHHOHNWULþQHLQãWDODFLMHGHO (QHUJLMVNDXþLQNRYLWRVW
Low voltage electrical installations - Part 8-1: Energy efficiency
Ta slovenski standard je istoveten z: HD 60364-8-1:2015
ICS:
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST HD 60364-8-1:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST HD 60364-8-1:2015
HARMONIZATION DOCUMENT HD 60364-8-1
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT
January 2015
ICS 13.020.01; 91.140.50
English Version
Low-voltage electrical installations - Part 8-1: Energy efficiency
(IEC 60364-8-1:2014 , modified)
Installations électriques basse tension - Partie 8-1: Errichten von Niederspannungsanlagen - Teil 8-1:
Efficacité énergétique Energieeffizienz
(IEC 60364-8-1:2014 , modifiée) (IEC 60364-8-1:2014 , modifiziert)
This Harmonization Document was approved by CENELEC on 2014-12-22. CENELEC members are bound to comply with the
CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document at national level.
Up-to-date lists and bibliographical references concerning such national implementations may be obtained on application to the CEN-
CENELEC Management Centre or to any CENELEC member.
This Harmonization Document exists in three official versions (English, French, German).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. HD 60364-8-1:2015 E
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SIST HD 60364-8-1:2015
HD 60364-8-1:2015 – 2 –
Foreword
The text of document 64/1969/FDIS, future edition 1 of IEC 60364-8-1, prepared by IEC/TC 64
"Electrical installations and protection against electric shock" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as HD 60364-8-1:2015.
A draft amendment, which covers common modifications to IEC 60364-8-1:2014, was prepared by
CLC/TC 64 "Electrical installations and protection against electric shock" and approved by CENELEC.
The following dates are fixed:
• latest date by which this document has (dop) 2015-12-22
to be implemented at national level
by publication of an identical
national standard or by endorsement
(dow) 2017-12-22
• latest date by which the national
standards conflicting with this document
have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60364-8-1:2014 was approved by CENELEC as a
European Standard with agreed common modifications.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60364-6 NOTE Harmonized as HD 60364-6.
ISO 50001 NOTE Harmonized as EN ISO 50001.
COMMON MODIFICATIONS
8.6.2
Add at the end of the clause the following note:
NOTE The use of carefully selected software for energy management purposes facilitates
the implementation of all these requirements.
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Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-30 - Rotating electrical machines -- Part 30: EN 60034-30 -
Efficiency classes of single-speed, three-
phase, cage-induction motors (IE code)
IEC 60287-3-2 - Electric cables - Calculation of the current - -
rating - Part 3: Sections on operating
conditions - Section 2: Economic
optimization of power cable size
IEC 60364 series Low-voltage electrical installations -- Part HD 60364 series
1: Fundamental principles, assessment of
general characteristics, definitions
IEC 60364-5-52 2009 Low-voltage electrical installations -- Part HD 60364-5-52 2011
(mod) 5-52: Selection and erection of electrical
equipment - Wiring systems
IEC 60364-5-55 2011 Electrical installations of buildings -- Part 5-HD 60364-5-559 2012
(mod) 55: Selection and erection of electrical
equipment - Other equipment
IEC 60364-7-712 2002 Electrical installations of buildings -- Part 7-HD 60364-7-712 2005
712: Requirements for special installations
or locations - Solar photovoltaic (PV)
power supply systems
IEC 61557-12 2007 Electrical safety in low voltage distribution EN 61557-12 2008
systems up to 1 000 V a.c. and 1 500 V
d.c. - Equipment for testing, measuring or
monitoring of protective measures -- Part
12: Performance measuring and
monitoring devices (PMD)
IEC 62053-21 - Electricity metering equipment (a.c.) - EN 62053-21 -
Particular requirements -- Part 21: Static
meters for active energy (classes 1 and 2)
IEC 62053-22 - Electricity metering equipment (a.c.) - EN 62053-22 -
Particular requirements -- Part 22: Static
meters for active energy (classes 0,2 S
and 0,5 S)
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SIST HD 60364-8-1:2015
IEC 60364-8-1
®
Edition 1.0 2014-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage electrical installations –
Part 8-1: Energy efficiency
Installations électriques basse tension –
Partie 8-1: Efficacité énergétique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 13.020.01; 91.140.50 ISBN 978-2-8322-1883-9
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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– 2 – IEC 60364-8-1:2014 © IEC 2014
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
3.1 General . 9
3.2 Electrical energy management . 10
3.3 Energy measurement . 11
3.4 Sectors of activities . 12
4 General . 12
4.1 Fundamental principles . 12
4.1.1 Safety of the electrical installation . 12
4.1.2 Availability of electrical energy and user decision . 12
4.1.3 Design requirements and recommendations . 13
5 Sectors of activities . 13
6 Design requirements and recommendations . 13
6.1 General . 13
6.2 Determination of load profile . 13
6.3 Determination of the transformer and switchboard location with the
barycentre method . 13
6.4 HV/LV substation . 14
6.4.1 General . 14
6.4.2 Optimum number of HV/LV substations . 14
6.4.3 Working point of the transformer . 14
6.4.4 Efficiency of the transformer . 14
6.5 Efficiency of local production . 15
6.6 Efficiency of local storage . 15
6.7 Losses in the wiring . 15
6.7.1 Voltage drop . 15
6.7.2 Cross-sectional areas of conductors . 15
6.7.3 Power factor correction . 15
6.7.4 Reduction of the effects of harmonic currents . 15
7 Determination of the zones, usages and meshes . 16
7.1 Determining the zones . 16
7.2 Determining the usages within the identified zones . 16
7.3 Determining the meshes . 16
7.3.1 General . 16
7.3.2 Criteria for considering meshes . 17
7.3.3 Meshes . 18
7.4 Impacts on distribution system design . 18
8 Energy efficiency and load management system . 19
8.1 General . 19
8.2 Requirements from the user . 20
8.2.1 General . 20
8.2.2 Requirements on the loads . 20
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8.2.3 Requirements on the supplies . 20
8.3 Inputs from loads, sensors and forecasts . 20
8.3.1 Measurement . 20
8.3.2 Loads . 22
8.3.3 Energy sensors . 23
8.3.4 Forecasts . 23
8.3.5 Data logging . 23
8.3.6 Communication . 23
8.4 Inputs from the supplies: energy availability and pricing, smart metering. 23
8.5 Information for the user: monitoring the electrical installation . 23
8.6 Management of loads through the meshes . 24
8.6.1 General . 24
8.6.2 Energy management system . 24
8.7 Multi-supply source management: grid, local electricity production and
storage . 24
9 Maintenance and enhancement of the performance of the installation . 25
9.1 Methodology . 25
9.2 Installation life cycle methodology . 26
9.3 Energy efficiency life cycle . 26
9.3.1 General . 26
9.3.2 Performance programme . 26
9.3.3 Verification . 27
9.3.4 Maintenance . 27
10 Parameters for implementation of efficiency measures . 27
10.1 General . 27
10.2 Efficiency measures . 27
10.2.1 Current-using/carrying equipment . 27
10.2.2 Distribution system . 28
10.2.3 Installation of monitoring systems . 29
11 Actions . 31
12 Assessment process for electrical installations . 32
12.1 New installations, modifications and extensions of existing installations . 32
12.2 Adaptation of existing installations . 32
Annex A (informative) Determination of transformer and switchboard location using the
barycentre method . 33
A.1 Barycentre method . 33
A.2 Total load barycentre . 36
A.2.1 General . 36
A.2.2 Subdistribution board locations . 37
A.2.3 Iterative process . 37
Annex B (informative) Example of a method to assess the energy efficiency of an
electrical installation . 38
B.1 Energy efficiency parameters . 38
B.2 Energy efficiency performance levels . 46
B.3 Installation profiles . 48
B.4 Electrical installation efficiency classes . 49
B.5 Example of installation profile (IP) and electrical installation efficiency class
(EIEC). 50
Bibliography . 52
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Figure 1 – Energy efficiency and load management system . 19
Figure 2 – Power distribution scheme . 21
Figure 3 – Iterative process for electrical energy efficiency management . 25
Figure A.1 – Example 1: Floor plan of production plant with the planned loads and
calculated barycentre . 35
Figure A.2 – Barycentre – Example 2: Calculated . 36
Figure A.3 – Example of location of the barycentre in an industrial building . 37
Table 1 – Overview of the needs . 21
Table 2 – Process for electrical energy efficiency management and responsibilities . 26
Table B.1 – Determination of load profile in kWh . 38
Table B.2 – Location of the main substation . 39
Table B.3 – Required optimization analysis for motors . 40
Table B.4 – Required optimization analysis for lighting . 40
Table B.5 – Required optimization analysis for HVAC . 41
Table B.6 – Required optimization analysis for transformers . 41
Table B.7 – Required optimization analysis for wiring system . 42
Table B.8 – Required optimization analysis for power factor correction . 42
Table B.9 – Requirement for power factor (PF) measurement . 43
Table B.10 – Requirement for electrical energy (kWh) and power (kW) measurement . 43
Table B.11 – Requirement for voltage (V) measurement . 44
Table B.12 – Requirement for harmonic and interharmonic measurement . 45
Table B.13 – Requirement for renewable energy . 46
Table B.14 – Minimum requirement for distribution of annual consumption . 47
Table B.15 – Minimum requirement for reducing the reactive power . 47
Table B.16 – Minimum requirement for transformer efficiency . 48
Table B.17 – Energy efficiency measures profile . 49
Table B.18 – Energy efficiency performance profile for an industrial installation . 49
Table B.19 – Electrical installation efficiency classes . 50
Table B.20 – Example of energy efficiency profile – Efficiency measures . 50
Table B.21 – Example of energy efficiency profile – Energy efficiency performance
levels . 51
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SIST HD 60364-8-1:2015
IEC 60364-8-1:2014 © IEC 2014 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 8-1: Energy efficiency
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
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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.
International Standard IEC 60364-8-1 has been prepared by IEC technical committee 64:
Electrical installations and protection against electric shock.
The text of this standard is based on the first edition and the following documents:
FDIS Report on voting
64/1969/FDIS 64/1977/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60364, under the general title Low-voltage electrical installations,
can be found on the IEC website.
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– 6 – IEC 60364-8-1:2014 © IEC 2014
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
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SIST HD 60364-8-1:2015
IEC 60364-8-1:2014 © IEC 2014 – 7 –
INTRODUCTION
The optimization of electrical energy usage can be facilitated by appropriate design and
installation considerations. An electrical installation can provide the required level of service
and safety for the lowest electrical consumption. This is considered by designers as a general
requirement of their design procedures in order to establish the best use of electrical energy.
In addition to the many parameters taken into account in the design of electrical installations,
more importance is nowadays focused on reducing losses within the system and its use. The
design of the whole installation therefore takes into account inputs from users, suppliers and
utilities.
The rate of replacement of existing properties is low, between 2 % and 5 % annually,
depending on the state of the local economy. It is therefore important that this standard
covers existing electrical installations in buildings, in addition to new installations. It is in the
refurbishment of existing buildings that significant overall improvements in energy efficiency
can be achieved.
The optimization of the use of electricity is based on energy efficiency management which is
based on the price of electricity, electrical consumption and real-time adaptation. Efficiency is
checked by measurement during the whole life of the electrical installation. This helps identify
opportunities for any improvements and corrections. Improvements and corrections may be
implemented through major investment or by an incremental method. The aim is to provide a
design for an efficient electrical installation which allows an energy management process to
suit the user’s needs, and in accordance with an acceptable investment.
This standard first introduces the different measures to ensure an energy efficient installation
based on kWh saving. It then provides guidance on giving priority to the measures depending
on the return of investment, i.e. the saving of electrical energy costs divided by the amount of
investment.
This standard is intended to provide requirements and recommendations for the electrical part
1
of the energy management system addressed by ISO 50001 [1] .
Account should be taken, if appropriate, of induced works (civil works, compartmentalization)
and the necessity to expect, or not, the modifiability of the installation.
This standard introduces requirements and recommendations to design the adequate
...
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