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P V

M O D U L E

I N S T A L L A T I O N

M A N U A L

3. Wiring and connection

a) Before the installation, please read carefully the operation instructions of PV system. Using multi-connecting cables to

make the PV modules in series or parallels, which is determined by the customers' requirements on the solar system power,

current, voltage etc.

b) Please connect similar current level modules for series connection, and output voltage should not be higher than

permitted system maximum voltage. Module number of each series depends on the system design, inverter type and the

installation environment.

c) The max rated fuse current of each series is marked on the label of each module and also in the specification sheet. The

rated fuse current refers to the highest reverse current that each module can bear. Based on the max fuse current and

installation requirements of the local electrical performance, please match and choose the suitable fuse to protect the PV

modules in series or parallels.

d) Opening the connector of control system and connect the cables from the PV arrays to the connector in accordance with

the installation indication of the PV control systems. The cross-sectional area and cable connector capacity must satisfy the

maximum short-circuit of PV system (For a single component, we recommended the cross-sectional area of cables is 4mm

and the rated current of connectors is more than 10A), otherwise the connecting cables and connectors will be over heating.

Please pay attention that the temperature limit of the cables is 85°C.

e) The electrical connections must be properly in accordance with local and national electrical rules.

f) All PV modules are included with the bypass diodes. Please notice that the diodes, cables and junction boxes maybe

damaged caused by the wrong installation.

PV modules need to be inspected and maintenance regularly, especially during the warranty period. In order to make

sure modules reaching the excellent performance, DAH Solar adopts following maintenance measures:

Please kindly check the PV modules carefully, ensure the modules are without appearance faultiness. Especially pay

attention to following points:

a) Double glass protector works as the protection during the transportation, it does not belongs to appearance

controlling , buyers can tear them o or save by themselves.

b) Module's glass damaged or not.

c) Whether have scratches of sharp objects hit panels surface.

d) Whether solar panel is blocked by obstacle and other objects or not.

e) Whether have corrosion near grid finger of solar cell. This is caused by the damage of laminates surface during the

installation or transportation, steam filter into inside of laminates.

f) Checking whether the fixed screws are loose or damaged between modules and brackets or not, and then adjust it or

repair it in time.