Industrial Inspections


 
Error Type
Example
Appears in the thermal image as
Manufacturing Defects
Impurities and gas pockets
Cracks in cells
A 'hot spot' or 'cold spot'
Cell heating, form mainly elongated
Damage
Cracks
Cracks in cells
Cell heating, form mainly elongated
A portion of a cell appears hotter
Temporary shadowing
Polution
Bird droppings
Humidity
 
Hot spots
 
Defective bypass diode (causes short circuits and reduces circuit protection)
N.A.A 'patchwork pattern'
Faulty interconnections
Module or string of modules not connected
A module or a string of modules is consistently hotter