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Publication details

Publication CODE Title
NBN EN IEC 62788-1-7:2020 (2020-06) MEASUREMENT PROCEDURES FOR MATERIALS USED in PHOTOVOLTAIC MODULES - PART 1-7: ENCAPSULANTS - TEST PROCEDURE OF OPTICAL DURABILITY
 
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25.00 € 4.
Description
IEC 62788-1-7:2020 is designed as a more rigorous qualification test, using accelerated UV exposure at elevated temperature to determine whether polymeric encapsulants can suffer loss of optical transmittance. IEC 61215-2 already includes a UV preconditioning test (MQT 10), however, the parameters for that test only represent a limited level of exposure (~weeks of UV dose). This test procedure is intended for representative coupon specimens, applying stress at a greater intensity (designed relative to Phoenix, AZ), using a radiation spectrum that is more similar to the terrestrial solar spectrum, and using a duration of exposure that is more relevant to the PV application (i.e., equivalent to several years of outdoor exposure). This test quantifies the degradation rate of encapsulants so that the risk of the materials losing optical transmittance during operation in the terrestrial environments can be managed. The quantitative correlation between climate (or location of use), a specific application (utility installation, residential-installation, roof-mount, rack-mount, use of a tracker, the system electrical configuration and its operation), and the test can be established for each specific encapsulant material, but is beyond the scope of this document.
Class  C
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally only available in English or French. Only the cover page is translated and the document itself is in English or in French.

Very important notice: 98% of the text of the NBN EN 55XXX, NBN EN 6XXXX comes from the IEC text which is NOT included. This text can be ordered electronically on our website, but isn't available via this link. Please contact the BEC if you want to buy this text and we'll give you the appropriate link.

DE version
EN version
FR version
Status
Status Registered trilingual Belgian standard EN or FR or DE
Situation Currently active
Origin
Committee CLC/TC 82
Solar photovoltaic energy systems
Approval
BEC Approval 2020-05-26
NBN Approval 2020-07-15
ICS-Code (International Standards Classification) 27.160
NBN Status New
Date of ratification (d.o.r.) 2020-05-26
Date of availability (d.a.v.) 2020-06-12
Date of announcement (d.o.a.) 2020-08-26
Date of publication (d.o.p.) 2021-02-26
Date of withdrawal former edition (d.o.w.) 2023-05-26
Correspondences with international standards
Relation International standard Date
is identical to EN IEC 62788-1-7:2020 2020-06-12
is identical to IEC 62788-1-7:201X
Relations to belgian/foreign publications
Type Origin Code Date
Standard Belgium EN 61215-2
Standard Belgium EN 62788-1-4
Standard Belgium EN IEC 61730-1
Standard Belgium EN ISO 291
Document Foreign IEC/TS 61836
Document Foreign IEC/TS 62915