MTA14004
３
<
NOTE
>
Example of visible discoloration
(1) White, grey or silver colored spots (Figure A)
After completion of the module installation white, grey or
silver-colored spots may occur during operation of the PV-plant
caused by certain shading conditions. These so called “White
Spot” are a common feature and a characteristic of thin-film
technology. They occur because of certain tolerances in the
production process. Document No. MTL11037a and MTL11041
provide instructions how to eliminate the occurrence of White Spots by avoiding certain
shading conditions. Please do not shade the PV module surface by specified shadow described
in MTL11037a and MTL11041.
(2) Discoloration along the internal wiring (Figure B)
This discoloration may occur along the internal wiring in PV
module.
4.6 Performance characteristics
4.6.1 Environmental requirement
4.6.1.1 Storage temperature
The storage temperature of the modules should be from -40
℃
to +90
℃
.
NOTE: If any chance the module is to be outdoor, put an appropriate cover so it would not be hit by rain directly.
Do not store the module in a storage where condensation many occurs.
4.6.1.2 Operating temperature of solar cells
The operating temperature of solar cells should be from -40
℃
to +90
℃
.
4.6.1.3 Storage humidity
The storage humidity of the modules should be less than 90% of relative humidity.
4.6.2 Electrical performance
4.6.2.1 Electrical output
The electrical characteristics of the module under standard test conditions (irradiance of
1000W/m
2
with IEC60904-3 reference solar spectral irradiance distribution, AM 1.5
spectrum and cell temperature of 25ºC) in accordance with IEC60904-1, shall be compliance
with the following table. Typical electrical characteristics of this model (open circuit voltage,
short circuit current, voltage at point of maximum power, current at point of maximum power,
maximum power) are shown in the appended data sheet.
Table1. The electrical characteristics (Nominal value)
Characteristic
Symbol
Nominal
Value
Max.
Min.
Unit
Maximum power
Pmax
128
140.8
121.6
W
NOTE1: The maximum power may be initially approx. 18% higher than the quoted nominal
< Fig. B >
< Fig. A>
