The demands on the durability and performance of solar cells, solar modules and photovoltaic systems are high. In order to fulfil these requirements despite falling prices and increasing sales figures due to high competitive pressure, it is essential to test products quickly and accurately. Important test methods include peel tests, bending tests and impact tests.
Peel tests:
Peel tests are used to test the adhesive strength of materials, in particular the bond between the protective layer and the underlying layers of the solar cell.
Bending tests:
Bending tests test the mechanical strength and flexibility of solar modules. They are important to ensure that the modules can withstand mechanical loads such as wind and snow.
Impact tests:
The impact test evaluates the resistance of solar modules to sudden mechanical impacts, such as hailstorms or falling branches.
Hegewald & Peschke offers you several test systems for solar cells and solar systems with which you can carry out tests under simulated everyday environmental conditions. We develop customised test solutions for you that allow you to reliably carry out load tests even without existing test guidelines and standards. This allows you to ensure that your solar modules and solar cells can withstand the high demands and stresses of daily use. This helps to maximise the efficiency and service life of the solar systems and increase the security of your investment.
Universal testing machines with peeling device
Testing device with mobile specimen holder |
Peel device for 90° peel tests
Universal testing machine inspekt solo with mobile specimen holder for solar module testing:
- Pull-off tests of the PV junction box from the rear of the solar modules
- Testing the adhesive bond of mounting rails glued to the back of the solar module (backrails)
The tests with the aim of quality control are carried out in accordance with ISO 527-3: Determination of tensile properties - Part 3: Test conditions for films and sheets.
Universal testing machines of the inspekt series with peel device for 90° peel tests:
- Pull-off tests to test the soldered connections of busbars (for transporting the current) on solar cells
Possible test procedures:
- Testing the adhesion and bonding strength between coated surfaces and their rigid carrier layer as well as various composite materials using a 90° peel test in accordance with ISO 8510-1, among others; in particular for solar modules and their contacting and protective coatings
- Peel test on bonded joints as insulation in accordance with IEC 61730 (section 10.24)
Test system:
- Single-spindle load unit inspekt S 5 kN
- Usable support for the test specimens can be customized, e.g:
- 2000 x 1800 mm at a height of approx. 700 mm above the floor
- 3200 x 2400 mm at a height of approx. 800 mm above the floor
- Test procedure and evaluation with LabMaster test software
![[Translate to englisch:] Glasprüfmaschine inspekt S für Stempeldruckprüfungen und Biegeprüfungen](/fileadmin/_processed_/4/1/csm_Glaspruefmaschine_inspekt_S_9be8cd7e28.jpg)
Universal testing machines of the inspekt series
Testing device for double ring bending tests |
4-point bending device
Universal testing machine with testing device 20 kN for double ring bending tests on glass
- Movable upper compression stamp
- Protective visor movable, mounted on upper stamp
Possible test procedures:
- Determination of flexural strength in the double ring bending test according to EN1288-5
Universal testing machine with 4-point bending device
- Bending angle up to 70°
- Specimen material e.g. germanium
- Specimen dimensions: rectangular specimen 40 x 40 mm to approx. 180 x 150 mm
- Protective housing with vacuum cleaner connection
Possible test procedures:
- Determination of flexural strength, e.g. based on the ASTM C1161-13 and AIAA S-111A-2014 standards
Test system:
- Frame construction in variable sizes
- Fixed to the ground and anchored to the wall
- Height adjustment for different solar module dimensions
- Support system with guides and lifting devices for the impact body
- Enables reproducible testing and precise positioning of the impactor in relation to the height of the solar module
- Impactor with release device
- Impactor as shown in figure 4 in EN 61730-2
Possible test procedures:
- Module breakage test (impact test) according to EN 61730-2 (section 10.21)
- Proof that injuries are reduced to a minimum if the PV module breaks
Test system:
- Test stand tightly covered on all sides
- Shooting device can be freely positioned from the outside
- Test specimen can be tilted freely around one or two axes diagonal to the firing device
- Test specimen positions can be read off reproducibly on scales
- Compressed air reservoir - high consistency of test conditions over all shots in the test series
- Velocity measurement of the projectiles as they exit the barrel
Possible test procedures:
- Testing the solar modules for resistance to impact from hail or stones
Our universal testing machines are equipped with the LabMaster testing software, which enables user-friendly setup and execution of test sequences for customised tests. It guarantees fast and reliable determination of results and offers a high degree of flexibility when integrating external measuring devices. Data import and export for customised software such as QDAS or SAP is also possible.
![[Translate to englisch:] Suche nach Branche und Material](/fileadmin/daten/Bilder/Willy/willi_filter_01.png)
Contact:
Hegewald & Peschke
Meß- und Prüftechnik GmbH
Am Gründchen 1
01683 Nossen
Phone: +49 35242 445-0
Fax: +49 35242 445-111
E-Mail: info@hegewald-peschke.de
Internet: www.hegewald-peschke.com
Exchange of industry knowledge:
Safe test results:
