Perlight Solar PLM-OM Series Installation Manual
17
www.perlight.com
V.01.2022 A1.0
Annual Checks
Once a year, check the tightness of terminal screws and the general condition of the wiring.
Also, check to ensure the mounting hardware is tight and secure. Loose connections will
result in damage to the array.
Changed Perlight Solar modules must be of the same kind and type. Do
not touch live parts of cables and connectors. Use appropriate safety
equipment when working (insulated tools, insulating gloves, etc.).
Only trained personnel may carry-out repair work to the PV modules and system
components.
Cover the front surface of the solar module with an opaque or other material when working on
the modules. Solar modules generate high voltage when exposed to sunlight.
Visual inspection
Please carefully check the modules of the existence of visual defects, focusing on the following
items:
a)
Check whether the module glass is broken.
b)
Check if the front of the module is obstructed by obstacles or foreign objects.
c)
Check the module backsheet, whether there is hot, negative film raised, signs of burns or
scorching and so on.
d)
Check whether the encapsulation materials of the module have delamination, bubbles, etc.
e)
Check the tightness of the bolts and the electrical connections at the connection points
between the modules and the supporting rail.
Inspection of connectors and cables
It is advisable to carry out a preventive check every 6 months and check the following:
a)
Check Junction box adhesive for cracks.
b)
Check the connector interface sealing tightness, signs of melting, aging or corrosion.
c)
Check that the cable connections are secure and that the modules are properly grounded.
When a module is found to be defective, consult a qualified service technician. If servicing is
required, it should be serviced by a qualified service technician. Module exposure generates
high voltages in the sun, so cover the modules with opaque material when servicing modules
to prevent electrical shock.
Note:
1.
Any problems discovered should be referred to a professional service technician for
confirmation;
2.
If using maintenance and repair measures not included in this manual, consult your local
dealer for professional support.
