Ўзбекистон республикаси олий ва ўрта махсус таълим вазирлиги наманган муҳандислик – Қурилиш

5.1 The most important criteria followed: 
It is necessary to focus on some of the criteria through which we can achieve 
a set of tests that are identical and somewhat compatible with what is done in the 
factories during the assembly stage and beyond, and each of them will be dealt 
with separately [4]. 
5.1.1. Quality and Performance Standard IEC 61215/61646 
The following provides a general description of the tests: 
1. 
Diagnosis: visual inspection (cracks, air bubbles, cell fracture, hot 
spots). 
2. 
Electrical: insulation resistance, leakage current. 
3. 
Mechanical: mechanical load, maximum bearing strength (tension, 
pressure, wicking), the effect of extreme cold and extreme heat and the amount of 
fire resistance (which is a destructive test and difficult to implement due to the 
high cost of testing).
The mechanism of this test begins by inspecting the plate visually for cracks, 
fractures, or any other manufacturing defects of the panels, especially on the 
surface of cells. Sometimes there are air bubbles between the outer transparent 
layer of the plate and the cell surface resulting from mismanagement, and they 
form resistance in the photon path, so no It reaches the cell at full capacity, and is a 
reason for the moisture to collect later.
Then the insulation resistance and the conductivity of the junction boxes are 
tested behind the plate, and the possibility of water leakage or moisture between 
the layers of the plate is estimated, which may cause leakage currents between the 
cells themselves, and between the cells and the outer frame. 
5.1.2. IEC 60904 Power Standard 
The correct maximum power measurement that can be compared to the 
global PV scale is critical. Not only is it one of the criteria for success or failure, 
but also because end users can also use measured values as a performance indicator 
to assess energy returns.The test mechanism is performed according to this 
standard on PV panels to determine when the standard test conditions (STC). By 
definition, STC: 

Solar radiation intensity on the board 1000 [W /
]. 

The plate temperature is 25 ° C. 

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
Air Mass (AM1.5), as defined in IEC 60904-3. 
Determining is usually a test procedure that is tested multiple times. The test 
can be done either internally using the sun simulator or externally with the sun in 
the open air. A value is checked according to this criterion by applying the STC 
conditions of radiation, heat, and air mass on the board taking into account the 
equal spectral distribution of radiation over the entire plate. Moreover, the match 
of the heat over the entire surface of the board, and then all of the tensions. 
Currents are measured with the change in the load value at the moment that we get 
a great value from the stress of current with the current we get, the test is taken 
several times and then the average of these tests is taken, then we get a test board.