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The cells are very thin and fragile so they are sandwiched between a transparent
front sheet, usually glass, and a backing sheet, usually glass or a type of tough plastic.
This protects them from breakage and from the weather. An aluminum frame is fitted
around the module to enable easy fixing to a support structure.
The picture in Fig. 2.6 shows a small part of a Module with cells in it. It has a glass
front, a backing plate and a frame around it.
Fig. 2.6. Construction of a typical Mono-crystalline PV / Solar Panel
GENERAL DESCRIPTION OF PV / SOLAR SYSTEM
Cell
Module
Fig. 2.5. PV cell, Module and Array
Aluminum
frame
Glass
front
Array
PV Cell
Backing
Sheet
2
11
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