SIST EN 12975-1:2006
(Main)Thermal solar systems and components - Solar collectors - Part 1: General Requirements
Thermal solar systems and components - Solar collectors - Part 1: General Requirements
This European Standard specifies requirements on durability (including mechanical strength), reliability and safety for liquid heating solar collectors. It also includes provisions for evaluation of conformity to these requirements.
It is not applicable to those collectors in which the thermal storage unit is an integral part of the collector to such an extent, that the collection process cannot be separated from the storage process for the purpose of making measurements of these two processes. It is not applicable to tracking concentrating solar collectors.
Collectors that are custom-built (built in, roof integrated collectors that do not comprise factory made modules and are assembled directly on the place of installation) cannot be tested in their actual form for durability, reliability and thermal performance according to this standard. Instead, a module with the same structure as the ready collector is tested. The module gross area in the case of custom built collectors should be at least 2 m2. The test is valid only for larger collectors, than the tested module.
For collectors the national and European Guidelines for Structural Planning and overhead glazing are not valid. Therefore this standard should be applied for the design of the static of the collector.
Thermische Solaranlagen und ihre Bauteile - Kollektoren - Teil 1: Allgemeine Anforderungen
Diese Europäische Norm legt für Flüssigkeitskollektoren Anforderungen hinsichtlich der Dauerhaftigkeit (einschließlich der mechanischen Festigkeit), der Zuverlässigkeit und Sicherheit fest. Sie enthält auch Vorgaben, um die Konformität mit diesen Anforderungen zu bewerten.
Die Norm ist nicht auf Kollektoren anwendbar, bei denen der Wärmespeicher in einem solchen Maße in den Kollektor integriert ist, dass bei der Durchführung von Messungen der Prozess im Kollektor vom Prozess der Wärmespeicherung nicht getrennt werden kann. Die Norm gilt nicht für nachgeführte konzentrierende Kollektoren.
Kundenspezifische Kollektoren (in der Dacheindeckung integrierte Kollektoren, die keine industriell hergestellten Module enthalten und direkt am Einsatzort zusammengestellt werden), können in ihrer ursprünglichen Form in Bezug auf Dauerhaftigkeit, Zuverlässigkeit und Wärmeleistung nicht nach dieser Norm geprüft werden. An ihrer Stelle wird ein Modul geprüft werden, das die gleiche Bauweise wie der fertig montierte Kollektor aufweist. Die Bruttofläche des Moduls muss mindestens 2 m2 betragen. Die Prüfung ist nur für Kollektoren gültig, die größer sind als das geprüfte Modul.
Installations solaires thermiques et leurs composants - Capteurs solaires - Partie 1 : Exigences générales
La présente Norme européenne spécifie les exigences de durabilité (y compris la résistance mécanique), de fiabilité et de sécurité pour des capteurs solaires a circulation de liquide. Elle contient également des dispositions pour l'évaluation de la conformité a ces exigences.
Elle ne s'applique pas aux capteurs dont le dispositif de stockage thermique fait partie intégrante dans la mesure ou les opérations de captage et de stockage de l'énergie ne peuvent pas etre séparées en vue d'effectuer des mesures nécessaires. Elle ne s'applique pas aux capteurs solaires suiveurs a concentration.
La durabilité, la fiabilité et les performances thermiques des capteurs fabriqués a façon (capteurs intégrés ou incorporés en toiture qui ne sont pas composés de modules fabriqués en usine et qui sont assemblés directement sur le lieu d'installation) ne peuvent pas, dans la forme actuelle de ces capteurs, etre contrôlées conformément a la présente norme. A leur place, on soumet aux essais un module ayant la meme structure que le capteur monté. Il est recommandé que la superficie hors-tout des modules de capteurs fabriqués a façon soit d'au moins 2 m2. L’essai n’est valable que pour les capteurs plus grands que le module soumis a l’essai.
Les Directives nationales et européennes relatives a l’étude de structures de bâtiments et a l’utilisation des vitrages horizontaux ou inclinés ne s’appliquent pas aux capteurs solaires. Il convient donc d’appliquer la présente norme pour la conception mécanique du capteur
Toplotni sončni sistemi in sestavni deli - Sprejemniki sončne energije - 1. del: Splošne zahteve
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 12975-1:2006
01-maj-2006
1DGRPHãþD
SIST EN 12975-1:2002
7RSORWQLVRQþQLVLVWHPLLQVHVWDYQLGHOL6SUHMHPQLNLVRQþQHHQHUJLMHGHO
6SORãQH]DKWHYH
Thermal solar systems and components - Solar collectors - Part 1: General
Requirements
Thermische Solaranlagen und ihre Bauteile - Kollektoren - Teil 1: Allgemeine
Anforderungen
Installations solaires thermiques et leurs composants - Capteurs solaires - Partie 1 :
Exigences générales
Ta slovenski standard je istoveten z: EN 12975-1:2006
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
SIST EN 12975-1:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 12975-1:2006
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SIST EN 12975-1:2006
EUROPEAN STANDARD
EN 12975-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2006
ICS 27.160 Supersedes EN 12975-1:2000
English Version
Thermal solar systems and components - Solar collectors - Part
1: General Requirements
Installations solaires thermiques et leurs composants - Thermische Solaranlagen und ihre Bauteile - Kollektoren -
Capteurs solaires - Partie 1 : Exigences générales Teil 1: Allgemeine Anforderungen
This European Standard was approved by CEN on 6 February 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12975-1:2006: E
worldwide for CEN national Members.
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SIST EN 12975-1:2006
EN 12975-1:2006 (E)
Contents Page
Foreword .3
Introduction.4
1 Scope.5
2 Normative references.5
3 Terms and definitions.5
4 Symbols and units .5
5 Durability and reliability.5
5.1 Materials and design.5
5.2 Required tests.5
5.3 Pass criteria.6
5.3.1 General.6
5.3.2 Internal pressure for absorber .7
5.3.3 High temperature resistance.7
5.3.4 Exposure.7
5.3.5 External thermal shock.7
5.3.6 Internal thermal shock.7
5.3.7 Rain penetration.7
5.3.8 Mechanical load test.7
5.3.9 Thermal performance.8
5.3.10 Freeze resistance test.8
5.4 Procedure.8
6 Safety.8
7 Collector identification.8
7.1 Drawings and data sheet.8
7.2 Labelling.9
7.3 Installer instruction manual.9
Annex A (informative) Description of solar collectors materials and manufacture .10
A.1 General.10
A.2 Absorbers.10
A.3 Transparent covers.11
A.4 Insulation materials.11
A.5 Reflectors.11
A.6 Diffusion barriers.11
Annex B (informative) Environmental protection .12
B.1 Heat transfer fluid.12
B.2 Insulation materials.12
B.3 Recycling of the collector materials.12
Annex C (informative) Tests to be repeated in collector design modifications.13
Bibliography.14
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SIST EN 12975-1:2006
EN 12975-1:2006 (E)
Foreword
This European Standard (EN 12975-1:2006) has been prepared by Technical Committee CEN/TC 312
“Thermal solar systems and components”, the secretariat of which is held by ELOT.
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 September 2006, and conflicting national standards shall be
withdrawn at the latest by September 2006.
This European Standard supersedes EN 12975-1:2000.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
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SIST EN 12975-1:2006
EN 12975-1:2006 (E)
Introduction
In respect of potential adverse effects on the quality of water intended for human consumption, caused by the
product covered by this standard, it is pointed out that:
a) This standard provides no information as to whether the product may be used without restriction
in any of the Member States of the EU or EFTA;
b) It should be noted that, while awaiting the adoption of verifiable European criteria, existing
national regulations concerning the use and/or the characteristics of this product remain in force.
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SIST EN 12975-1:2006
EN 12975-1:2006 (E)
1 Scope
This European Standard specifies requirements on durability (including mechanical strength), reliability and
safety for liquid heating solar collectors. It also includes provisions for evaluation of conformity to these
requirements.
It is not applicable to those collectors in which the thermal storage unit is an integral part of the collector to
such an extent, that the collection process cannot be separated from the storage process for the purpose of
making measurements of these two processes. It is not applicable to tracking concentrating solar collectors.
Collectors that are custom-built (built in, roof integrated collectors that do not comprise factory made modules
and are assembled directly on the place of installation) cannot be tested in their actual form for durability,
reliability and thermal performance according to this standard. Instead, a module with the same structure as
the ready collector is tested. The module gross area in the case of custom built collectors should be at least 2
2
m . The test is valid only for larger collectors, than the tested module.
For collectors the national and European Guidelines for Structural Planning and overhead glazing are not valid.
Therefore this standard should be applied for the design of the static of the collector.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For
dated references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 12975-2:2006, Thermal solar systems and components – Solar collectors – Part 2: Test methods
EN ISO 9488, Solar energy – Vocabulary (ISO 9488:1999)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN ISO 9488 apply.
4 Symbols and units
For the purposes of this European Standard, the symbols and units given in EN ISO 9488 and
EN 12975-2:2006 apply.
5 Durability and reliability
5.1 Materials and design
Information about the materials and manufacture of solar collectors, including the materials they are
manufactured of and their resistance to all influences which they might meet in service, retaining their
operational ability are given in Annex A.
5.2 Required tests
The collector shall be subjected to the following series of tests:
a) Internal pressure for absorber (see 5.2 of EN 12975-2:2006);
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SIST EN 12975-1:2006
EN 12975-1:2006 (E)
b) High temperature resistance (see 5.3 of EN 12975-2:2006);
c) Exposure (see 5.4 of EN 12975-2:2006);
d) External thermal shock. May be combined with the high temperature resistance or exposure test (see
5.5 of EN 12975-2:2006);
e) Internal thermal shock. May be combined with the high temperature resistance or exposure test (see
5.6 of EN 12975-2:2006);
f) Rain penetration, only for glazed collectors (see 5.7 of EN 12975-2:2006);
g) Mechanical load (see 5.9 of EN 12975-2:2006);
h) Thermal performance (see Clause 6 of EN 12975-2:2006);
i) Freeze resistance, only in the cases specified in 5.8 of EN 12975-2:2006;
j) Stagnation temperature (see Annex C of EN 12975-2:2006). May be combined with the high
temperature resistance or exposure test.
k) Final inspection (see 5.11 of EN 12975-2:2006).
The optional test for impact resistance (see 5.10 of EN 12975-2:2006) shall be carried out if requested. The
result shall be recorded.
NOTE Regarding the durability and reliability of elastic materials it is recommended to refer to ISO 9808 and ISO 9553.
5.3 Pass criteria
5.3.1 General
The pass criteria for the reliability tests are given for each test in 5.3.2 to 5.3.10. The term "no major failure",
denotes that none of the following occurs:
- Absorber leakage or such deformation that permanent contact between absorber and cover is
established;
- Breaking or permanent deformation of cover or cover fixing;
- Breaking or permanent deformation of collector fixing points or collector box;
- Vacuum loss, such that vacuum or subatmospheric collectors shall be classified according to the
definition in EN ISO 9488 (only applicable for vacuum and subatmospheric collectors);
- Accumulation of humidity in form of condensate on the inside of the transparent cover of the
collector exceeding 10 % of the aperture area.
NOTE The evaluation of accumulation of humidity for application of the pass criteria should be applied only on the
following tests :
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SIST EN 12975-1:2006
EN 12975-1:2006 (E)
- external Thermal Shock
- Rain Penetration Test
5.3.2 Internal pressure for absorber
The test pressure shall be as specified in 5.2 of EN 12975-2:2006. In the case of absorbers made of organic
materials, climate conditions according to Table 2 of EN 12975-2:2006 shall be applied. After the internal
pressure test, the collector shall not show any major failure as defined in 5.3.1.
5.3.3 High temperature resistance
When tested in accordance with 5.3 of EN 12975-2:2006, the collector shall not show any major failure as
defined in 5.3.1.
5.3.4 Exposure
When tested in accordance with 5.4 of EN 12975-2:2006, the collector shall not show any major failure
according to 5.3.1 and none of each potential problems of their components shall be graded 2 on the scale
given in B.5.5 of EN 12975-2:2006.
5.3.5 External thermal shock
When tested in accordance with 5.5 of EN 12975-2:2006, the collector shall not show any major failure as
defined in 5.3.1.
5.3.6 Internal thermal shock
When tested in accordance with 5.6 of EN 12975-2:2006, the collector shall not show any major failure as
defined in 5.3.1.
5.3.7 Rain penetration
NOTE This test is applicable only for glazed collectors.
A visual check shall not show any water trace. Moreover, at least one of the following shall be fulfilled:
a) by weighing the collector the determined water quantity shall be less than 30 g/m² or
b) by measuring the humidity inside the collector, any visible droplets inside the collector or humidity
that exceeds 20 g/kg at any time during the test or humidity that doubles from the value measured
after stabilisation shall yields to “major failure” or
c) measured condensation level shall be less than 10 % o
...
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