东方日升新能源股份有限公司
PV module installation and
maintenance manual
RISEN ENERGY CO.,LTD.
主导部门：组件研发中心
Page：NO.39 ,Total 41
Check the electrical, grounding and mechanical connections every 6 months to
ensure they are clean and safe, free from damage or rust. Check that the mounting
parts are tight. Check all cables and make sure that the connectors are securely. PV
modules frames and bracket should be well
mechanically connected.
Check whether there is any foreign body on the surface of the PV modules and
whether there is any shielding.
When repairing PV modules, cover the surface of PV modules with opaque material
to prevent electric shock. Exposure of PV modules to sunlight will generate high
voltages, this is dangerous. Please pay attention to safety when maintenance and it
must be done by professionals.
When the irradiance is no less than 200W/m², if the terminal voltage is more than 5%
different than the rated value, it illustrates the connection of the modules is not
good.
Comply with maintenance instructions for all modules used in the PV system, such
as brackets, charging rectifiers, inverters, batteries, lightning protection systems,
etc.
Warning: Any electrical maintenance must shut down the PV system firstly.
Improper system maintenance may cause fatal dangers such as electric shock and
burning.
12.3.Cleaning
Dust accumulation on the glass surface of the module will reduce its power output
and may cause hot spots. So the surface of photovoltaic modules should be kept
clean. Maintenance work should be performed at least once a year or frequently.
Warning: It should be carried out by trained personnel. Workers should wear PPE,
such as goggles, electric insulation gloves and safety shoes. The gloves should
withstand DC voltages of no less than 2000V
