SIST EN ISO 52010-1:2017

Energy performance of buildings - External climatic conditions - Part 1: Conversion of climatic data for energy calculations (ISO 52010-1:2017)

This new international standard will provide calculation procedures for the conversion of measured (global and beam normal) solar radiation climatic data, obtained from EN ISO 15927, to irradiation at vertical and tilted planes, including assumptions to assess the impact of surrounding obstacles on the irradiation (shading). Procedures for the use of output from EN ISO 15927 (parts 1 to 6) as input for the EPB assessment.

Energieeffizienz von Gebäuden - Äußere Umweltbedingungen - Teil 1: Umrechnung von Wetterdaten als Eingangsgrößen für Energieberechnungen (ISO 52010-1:2017)

Dieses Dokument legt ein Berechnungsverfahren zur Umrechnung von Klimadaten als Eingangsgrößen für Energieberechnungen fest.
Das Hauptelement des Dokuments besteht in der Berechnung der solaren Bestrahlungsstärke auf eine Oberfläche mit beliebiger Ausrichtung und Neigung. Ein einfaches Verfahren für die Umrechnung der solaren Bestrahlungsstärke in Beleuchtungsstärke wird ebenfalls angegeben.
Die solare Bestrahlungsstärke und die Beleuchtungsstärke auf einer beliebigen Oberfläche dienen als Eingabedaten für Energie  und Tageslichtberechnungen, für Bauteile (wie Dächer, Fassaden und Fenster) und für Komponenten der technischen Gebäudeausrüstung (wie Sonnenkollektoren, Photovoltaik-Paneele).
Weitere Klimadaten-Parameter, die für die Bewertung der wärme  und feuchteschutztechnischen Effizienz von Gebäuden, Bauteilen oder Anlagen der technischen Gebäudeausrüstung erforderlich sind [wie Wind, Temperatur, Feuchte und langwellige (Wärme )Strahlung] sind entsprechend der Verfahren in ISO 15927 4 zu erhalten. Diese Daten sind in diesem Dokument als Eingabedaten aufgeführt und werden ohne Umwandlung als Ausgabedaten weitergegeben.
ANMERKUNG 1   Der Grund für die Weitergabe dieser Daten über dieses Dokument besteht darin, über eine einzige und konsistente Quelle für alle EPB-Normen zu verfügen und eine mögliche Umrechnung oder sonstige Behandlung zu ermöglichen, sofern das für eine spezifische Anwendung notwendig ist.
ANMERKUNG 2   Tabelle 1 in der Einleitung zeigt die relative Position dieses Dokuments innerhalb des EPB-Normenpakets im Kontext der in ISO 52000 1 dargelegten modularen Struktur.

Performance énergétique des bâtiments - Conditions climatiques extérieures - Partie 1: Conversion des données climatiques pour les calculs énergétiques (ISO 52010-1:2017)

L'ISO 52010-1:2017 spécifie une procédure de calcul pour la conversion des données climatiques pour les calculs énergétiques.
Le principal élément de l'ISO 52010-1:2017 est le calcul de l'irradiance solaire sur une surface avec une orientation et une inclinaison arbitraires. Une méthode simple de conversion de l'irradiance solaire en éclairement est également fournie.
L'irradiance solaire et l'éclairement sur une surface arbitraire sont applicables comme données d'entrée pour les calculs de l'énergie et de l'éclairage naturel, pour les éléments de bâtiments (comme les toits, les façades et les fenêtres) et pour les composants des systèmes techniques du bâtiment (comme les capteurs solaires thermiques ou les panneaux photovoltaïques).
Les autres paramètres des données climatiques qui sont nécessaires pour évaluer la performance thermique et la performance en matière d'humidité des bâtiments, des éléments de bâtiments ou des systèmes techniques du bâtiment [comme le vent, la température, l'humidité et le rayonnement (thermique) de grandes longueurs d'onde] doivent être obtenus selon les procédures indiquées dans l'ISO 15927‑4. Ces données sont répertoriées dans l'ISO 52010-1:2017 en tant que données d'entrée et elles deviennent des données de sortie sans aucune conversion.
NOTE 1    Ces données ont été incluses dans l'ISO 52010-1:2017 dans le but de disposer d'une source unique et cohérente pour toutes les normes PEB et de permettre de réaliser une conversion ou tout autre traitement si cela est nécessaire pour une application spécifique.
NOTE 2    Le Tableau 1 dans l'Introduction montre la position relative de l'ISO 52010-1:2017dans l'ensemble de normes PEB dans le contexte de la structure modulaire établie par l'ISO 52000‑1.

Energetska učinkovitost stavb - Zunanje podnebne razmere - 1. del: Pretvorba podnebnih podatkov za energetske izračune (ISO 52010-1:2017)

Ta novi mednarodni standard bo določal računske postopke za pretvorbo merjenih podnebnih podatkov o (globalnem in običajnem) sončnem sevanju, pridobljenih na podlagi standarda EN ISO 15927, v obsevanje z navpičnimi in nagnjenimi ploščami, vključno s predpostavkami za ocenjevanje vpliva bližnjih ovir na obsevanje (senčenje). Postopki za uporabo rezultatov iz standarda EN ISO 15927 (deli 1–6) kot virov za oceno EPB.

General Information

• Status: Published
• Public Enquiry End Date: 29-Mar-2015
• Publication Date: 15-Aug-2017
• ICS: 27.015 - Energy efficiency. Energy conservation in general
• ICS: 91.120.10 - Thermal insulation of buildings
• Technical Committee: TOP - Thermal insulation
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Aug-2017
• Due Date: 06-Oct-2017
• Completion Date: 16-Aug-2017
• Directive: 2010/31/EU - Directive 2010/31/eu of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast)
• Mandate: M/480 - Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and promoting the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the energy performance buildings (2010/31/EU)
• Ref Project: EN ISO 52010-1:2017 - Energy performance of buildings - External climatic conditions - Part 1: Conversion of climatic data for energy calculations (ISO 52010-1:2017)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 52010-1:2017
01-september-2017
(QHUJHWVNDXþLQNRYLWRVWVWDYE=XQDQMHSRGQHEQHUD]PHUHGHO3UHWYRUED
SRGQHEQLKSRGDWNRY]DHQHUJHWVNHL]UDþXQH,62
Energy performance of buildings - External climatic conditions - Part 1: Conversion of
climatic data for energy calculations (ISO 52010-1:2017)
Energieeffizienz von Gebäuden - Äußere Umweltbedingungen - Teil 1: Umrechnung von
Wetterdaten als Eingangsgrößen für Energieberechnungen (ISO 52010-1:2017)
Performance énergétique des bâtiments - Conditions climatiques extérieures - Partie 1:
Conversion des données climatiques pour les calculs énergétiques (ISO 52010-1:2017)
Ta slovenski standard je istoveten z: EN ISO 52010-1:2017
ICS:
27.015 (QHUJLMVNDXþLQNRYLWRVW Energy efficiency. Energy
2KUDQMDQMHHQHUJLMHQD conservation in general
VSORãQR
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
SIST EN ISO 52010-1:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 52010-1:2017

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SIST EN ISO 52010-1:2017


EN ISO 52010-1
EUROPEAN STANDARD

NORME EUROPÉENNE

July 2017
EUROPÄISCHE NORM
ICS 91.120.10
English Version

Energy performance of buildings - External climatic
conditions - Part 1: Conversion of climatic data for energy
calculations (ISO 52010-1:2017)
Performance énergétique des bâtiments - Conditions Energieeffizienz von Gebäuden - Äußere
climatiques extérieures - Partie 1: Conversion des Umweltbedingungen - Teil 1: Umrechnung von
données climatiques pour les calculs énergétiques (ISO Wetterdaten als Eingangsgrößen für
52010-1:2017) Energieberechnungen (ISO 52010-1:2017)
This European Standard was approved by CEN on 27 February 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 52010-1:2017 E
worldwide for CEN national Members.

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SIST EN ISO 52010-1:2017
EN ISO 52010-1:2017 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 52010-1:2017
EN ISO 52010-1:2017 (E)
European foreword
This document (EN ISO 52010-1:2017) has been prepared by Technical Committee ISO/TC 163
"Thermal performance and energy use in the built environment" in collaboration with Technical
Committee CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of
which is held by SIS.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2018 and conflicting national standards shall
be withdrawn at the latest by January 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
This document is part of the set of standards on the energy performance of buildings (the set of EPB
standards) and has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association (Mandate M/480, see reference [EF1] below), and supports essential
requirements of EU Directive 2010/31/EC on the energy performance of buildings (EPBD, [EF2]).
In case this standard is used in the context of national or regional legal requirements, mandatory
choices may be given at national or regional level for such specific applications, in particular for the
application within the context of EU Directives transposed into national legal requirements.
Further target groups are users of the voluntary common European Union certification scheme for the
energy performance of non-residential buildings (EPBD art.11.9) and any other regional (e.g. Pan
European) parties wanting to motivate their assumptions by classifying the building energy
performance for a dedicated building stock.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
3

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SIST EN ISO 52010-1:2017
EN ISO 52010-1:2017 (E)
References:
[EF1] Mandate M/480, Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of
standards for a methodology calculating the integrated energy performance of buildings and promoting
the energy efficiency of buildings, in accordance with the terms set in the recast of the Directive on the
energy performance of buildings (2010/31/EU) of 14th December 2010
[EF2] EPBD, Recast of the Directive on the energy performance of buildings (2010/31/EU) of 14th
December 2010
Endorsement notice
The text of ISO 52010-1:2017 has been approved by CEN as EN ISO 52010-1:2017 without any
modification.

4

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SIST EN ISO 52010-1:2017
INTERNATIONAL ISO
STANDARD 52010-1
First edition
2017-06
Energy performance of buildings —
External climatic conditions —
Part 1:
Conversion of climatic data for energy
calculations
Performance énergétique des bâtiments — Conditions climatiques
extérieures —
Partie 1: Conversion des données climatiques pour les calculs
énergétiques
Reference number
ISO 52010-1:2017(E)
©
ISO 2017

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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviations . 2
4.1 Symbols . 2
4.2 Subscripts . 3
5 Description of the methods . 4
5.1 Output of the method . 4
5.2 General description of the method . 4
6 Calculation method . 5
6.1 Output data . 5
6.2 Calculation time intervals . 7
6.3 Input data . 8
6.3.1 General. 8
6.3.2 Weather station and climatic data set . 8
6.3.3 Climatic input data . 9
6.3.4 Geometrical characteristics . 9
6.3.5 Constants and physical data.10
6.3.6 Input data from Annex A (see Annex B) .11
6.4 Calculation procedure .11
6.4.1 Calculation of the sun path . .12
6.4.2 Split between direct and diffuse solar irradiance .16
6.4.3 Solar reflectivity of the ground .18
6.4.4 Calculation of the total solar irradiance at given orientation and tilt angle .18
6.4.5 Calculation of shading by external objects .22
6.4.6 Calculation of illuminance .25
7 Quality control .26
8 Compliance check .26
Annex A (normative) Input and method selection data sheet — Template .27
Annex B (informative) Input and method selection data sheet — Default choices .31
Bibliography .35
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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o .org/ iso/ foreword .html.
ISO 52010-1 was prepared by ISO Technical Committee ISO/TC 163, Thermal performance and energy
use in the built environment, Subcommittee SC 2, Calculation methods, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 89, Thermal performance of
buildings and building components, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
A list of all the parts in the ISO 52010 series can be found on the ISO website.
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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

Introduction
This document is part of a series aimed at the international harmonization of the methodology for
assessing the energy performance of buildings. Throughout, this series is referred to as a “set of EPB
standards”.
All EPB standards follow specific rules to ensure overall consistency, unambiguity and transparency.
All EPB standards provide a certain flexibility with regard to the methods, the required input data and
references to other EPB standards, by the introduction of a normative template in Annex A and Annex B
with informative default choices.
For the correct use of this document, a normative template is given in Annex A to specify these choices.
Informative default choices are provided in Annex B.
The main target groups for this document are architects, engineers and regulators.
Use by or for regulators: In case the document is used in the context of national or regional legal
requirements, mandatory choices may be given at national or regional level for such specific
applications. These choices (either the informative default choices from Annex B or choices adapted to
national/regional needs, but in any case following the template of Annex A) can be made available as
national annex or as separate (e.g. legal) document (national data sheet).
NOTE 1 So in this case:
— the regulators will specify the choices;
— the individual user will apply the document to assess the energy performance of a building, and thereby use
the choices made by the regulators.
Topics addressed in this document can be subject to public regulation. Public regulation on the same
topics can override the default values in Annex B. Public regulation on the same topics can even, for
certain applications, override the use of this document. Legal requirements and choices are in general
not published in standards but in legal documents. In order to avoid double publications and difficult
updating of double documents, a national annex may refer to the legal texts where national choices
have been made by public authorities. Different national annexes or national data sheets are possible,
for different applications.
It is expected, if the default values, choices and references to other EPB standards in Annex B are not
followed due to national regulations, policy or traditions, that:
— national or regional authorities prepare data sheets containing the choices and national or regional
values, according to the model in Annex A. In this case a national annex (e.g. NA) is recommended,
containing a reference to these data sheets;
— or, by default, the national standards body will consider the possibility to add or include a national
annex in agreement with the template of Annex A, in accordance to the legal documents that give
national or regional values and choices.
Further target groups are parties wanting to motivate their assumptions by classifying the building
energy performance for a dedicated building stock.
[6]
More information is provided in the technical report (ISO/TR 52010-2 ) accompanying this document.
The subset of EPB standards prepared under the responsibility of ISO/TC 163/SC 2, Thermal performance
and energy use in the built environment — Calculation methods, cover inter alia:
— calculation procedures on the overall energy use and energy performance of buildings;
— calculation procedures on the internal temperature in buildings (e.g. in case of no space heating or
cooling);
© ISO 2017 – All rights reserved v

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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

— indicators for partial EPB requirements related to thermal energy balance and fabric features; and
— calculation methods covering the performance and thermal, hygrothermal, solar and visual
characteristics of specific parts of the building and specific building elements and components, such
as opaque envelope elements, ground floor, windows and facades.
ISO/TC 163/SC 2 cooperates with other TCs for the details on, for example, appliances, technical
building systems and indoor environment.
This document provides:
— Standard calculation procedures for the conversion of hourly weather data to apply as input for
energy performance calculations, in particular calculation of solar irradiance on an arbitrary
inclined surface.
— Procedures for the use of (other) output from ISO 15927-1, ISO 15927-2, and ISO 15927-4) as input
for the EPB assessment.
Common standard climatic data shall be used for the all relevant EPB modules. Most of the input data
are available from ISO 15927-1, ISO 15927-2, ISO 15927-4, ISO 15927-5 and ISO 15927-6.
These data include the variables per time interval, as described in ISO 52000-1:2017, 11.5.
Table 1 shows the relative position of this document within the set of EPB standards in the context of
the modular structure as set out in ISO 52000-1.
[7]
NOTE 2 In ISO/TR 52000-2 the same table can be found, with, for each module, the numbers of the relevant
EPB standards and accompanying technical reports that are published or in preparation.
NOTE 3 The modules represent EPB standards, although one EPB standard could cover more than one module
and one module could be covered by more than one EPB standard, for instance a simplified and a detailed method
respectively. See also Tables A.1 and B.1






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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

Table 1 — Position of this document (in casu M1–13), within the modular structure of the set of
EPB standards
Building
Overarching Technical Building Systems
(as such)
Build-
ing
Hu- De- Do-
auto-
Ven- mid- hu- mes-
Descrip- Descrip- Heat- Cool- Light- ma- PV,
Submodule Descriptions tila- ifi mid- tic
tions tions ing ing ing tion wind, .
tion cati- ifica- hot
and
on tion water
con-
trol
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
1 General General General
Common terms
Building
and definitions;
2 energy Needs a
symbols, units
needs
and subscripts
(Free)
Maxi-
Indoor
mum
3 Applications conditions
load and
without
power
systems
Ways to Ways to
Ways to express express
4 express energy energy energy
performance perfor- perfor-
mance mance
Building Heat
Emission
categories transfer
5 and
and building by trans-
control
boundaries mission
Heat
Building transfer
Distribu-
occupancy by infiltra-
6 tion and
and operating tion and
control
conditions ventila-
tion
Aggregation of
Storage
energy services Internal
7 and
and energy heat gains
control
carriers
Genera-
Solar heat
8 Building zoning tion and
gains
control
Load
Building dispatch-
Calculated
dynamics ing and
9 energy perfor-
(thermal operating
mance
mass) condi-
tions
Meas-
Measured
ured
Measured ener- energy
10 energy
gy performance perfor-
perfor-
mance
mance
Inspec-
11 Inspection Inspection
tion
a
The shaded modules are not applicable.
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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

Table 1 (continued)
Building
Overarching Technical Building Systems
(as such)
Build-
ing
Hu- De- Do-
auto-
Ven- mid- hu- mes-
Descrip- Descrip- Heat- Cool- Light- ma- PV,
Submodule Descriptions tila- ifi mid- tic
tions tions ing ing ing tion wind, .
tion cati- ifica- hot
and
on tion water
con-
trol
sub1 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11
Ways to
12 express indoor BMS
comfort
ISO 52010-1
External
13 environment
conditions
Economic
14
calculation
a
The shaded modules are not applicable.
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SIST EN ISO 52010-1:2017
INTERNATIONAL STANDARD ISO 52010-1:2017(E)
Energy performance of buildings — External climatic
conditions —
Part 1:
Conversion of climatic data for energy calculations
1 Scope
This document specifies a calculation procedure for the conversion of climatic data for energy
calculations.
The main element in this document is the calculation of solar irradiance on a surface with arbitrary
orientation and tilt. A simple method for conversion of solar irradiance to illuminance is also provided.
The solar irradiance and illuminance on an arbitrary surface are applicable as input for energy and
daylighting calculations, for building elements (such as roofs, facades and windows) and for components
of technical building systems (such as thermal solar collectors, PV panels).
Other parameters of climatic data needed to assess the thermal and moisture performance of buildings,
building elements or technical building systems [like wind, temperature, moisture and long-wave
(thermal) radiation] are to be obtained according to the procedures in ISO 15927-4. These data are
listed in this document as input and passed on as output without any conversion.
NOTE 1 The reason for passing these data via this document is to have one single and consistent source for all
EPB standards and to enable any conversion or other treatment if needed for specific application.
NOTE 2 Table 1 in the Introduction shows the relative position of this document within the set of EPB
standards in the context of the modular structure as set out in ISO 52000-1.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7345, Thermal insulation — Physical quantities and definitions
ISO 9488, Solar energy — Vocabulary
ISO 15927-4, Hygrothermal performance of buildings — Calculation and presentation of climatic data —
Part 4: Hourly data for assessing the annual energy use for heating and cooling
ISO 52000-1, Energy performance of buildings — Overarching EPB assessment — Part 1: General
framework and procedures
ISO 52016-1, Energy performance of buildings — Energy needs for heating and cooling, internal
temperatures and sensible and latent heat loads — Part 1: Calculation procedures
NOTE Default references to EPB standards other than ISO 52000-1 are identified by the EPB module code
number and given in Annex A (normative template in Table A.1) and Annex B (informative default choice in
Table B.1).
EXAMPLE EPB module code number: M5–5, or M5–5.1 (if module M5–5 is subdivided), or M5–5/1 (if
reference to a specific clause of the standard covering M5–5).
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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7345, ISO 9488, ISO 52000-1
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
EPB standard
standard that complies with the requirements given in ISO 52000-1, CEN/TS 16628 and CEN/TS 16629
Note 1 to entry: These three basic EPB documents were developed under a mandate given to CEN by the European
Commission and the European Free Trade Association (Mandate M/480), and support essential requirements of
EU Directive 2010/31/EU on the energy performance of buildings (EPBD). Several EPB standards and related
documents are developed or revised under the same mandate.
[SOURCE: ISO 52000-1:2017, definition 3.5.14]
3.2
solar declination
angle between direction of the direct solar radiation and the equatorial plane of the earth
3.3
illuminance
quotient of the luminous flux incident on an element of the surface containing
the point, divided by the area of that element
−2
Note 1 to entry: This is expressed in lux, 1 lx = 1 lm·m .
[SOURCE: ISO 16817:2012, 3.14]
4 Symbols and abbreviations
4.1 Symbols
For the purposes of this document, the symbols from ISO 52000-1 and the following apply.
NOTE If, within this document, a symbol is more or less uniquely linked with a specific subscript, the symbol
is shown with the subscript.
Symbol Name of quantity Unit
D wind direction °
f brightness coefficients (Perez model) –
E global illuminance lx
v
F coefficient –
2
G irradiance W/m
H height m
2
H (accumulated, monthly) solar irradiation kW h/m
i index –
2
I calculated irradiance W/m
K Global luminous efficacy lm/W
v
k clearness index –
T
L distance m
2 © ISO 2017 – All rights reserved

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SIST EN ISO 52010-1:2017
ISO 52010-1:2017(E)

Symbol Name of quantity Unit
m air mass –
n number –
R earth orbit deviation °
dc
...