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6.4 The bypass diode
Recommended diode
：
20SQ045 of Zhejiang Zhonghuan Sunter PV Technology Co.,Ltd.
SOLGLASS's solar module junction box contains the bypass diode and is parallel connected to
the cells string inside the module. When the hot spot occurs locally, the diode will pass only
current through the non-hot spot cell, limiting the module's heat and performance loss. Note that
the bypass diode is not an over current protection.
When you know or suspect a diode failure, contact SOLGLASS for installation or system
maintenance. Please do not attempt to open the junction box of the module.
7. Operation and Maintenance
The modules must be inspected and maintained regularly, especially during the warranty period,
which is the responsibility of the user and notify supplier within two weeks if any module is found
to be damaged.
Dust, such as industrial waste water and, bird droppings, deposits on the glass surface of the
module reduces its power output and may cause regional hot spots. The extent of the effect
depends on the transparency of the waste, and the small amount of dust on the glass affects
absorbing the intensity and uniformity of sunlight, but is not dangerous, and the power is usually
not significantly reduced.
There must be no environmental impact factors, such as the presence of other modules, module
system bracket, bird presence, large amounts of dust, soil, or vegetation that cast a shadow over
the modules and obscure some modules or all modules while they are in operation, resulting in a
significant reduction of output power. SOLGLASS recommends that the surface of the
component not be obscured at all times.
As for the frequency of cleaning, it depends on the dirt accumulates level . Under normal
circumstances, rainwater would clean the surface of the modules, which would reduce the
frequency of cleaning. SOLGLASS recommends using a damp, water soaked sponge or a soft
cloth to clean the glass and surface. Do not use detergent containing alkali or acid to clean
modules.
