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2 Planning
2.4 Electrical layout
Module Selection
For detailed key electrical data, please refer to the actual data
sheet referring to the relevant Module (available at www.qcells.
com/).
For maximum energy yields, mismatches of specified electric
current (I
) of more than 5 % should be avoided for all
MPP
modules connected in series.
Safety Factor
For detailed key electrical data, please refer to the actual data
sheet referring to the relevant Module (available at www.qcells.
com).
During normal operation, a module may generate a greater
■
current and / or higher voltage than that determined under
standardized test conditions. Please use a safety factor of 1.25
for the following:
Calculating the voltage measurement values (V
■
components
Calculating the current measurement values (I
) of conductors
■
SC
Sizing of control systems connected to the outlets of the solar
■
modules
Please follow the valid national guidelines for the installation of
electrical systems.
Series Connection
Connection of modules in series is only permitted up to the
maximum system voltage as listed in the applicable data sheet of
all the relevant modules to be installed.
Take into account all possible operating situations and all
relevant technical norms and regulations when designing the
system. It has to be ensured that the maximum system voltage,
including all necessary safety margins, is not exceeded.
Take the voltage limit of the inverter into account when
determining the maximum number of modules in the string.
10
Parallel Connection
Modules may be damaged by the occurrence of reverse currents
(caused by module defects, ground leaks, or defective insulation).
Ensure that the maximum reverse current load capacity
indicated in the data sheet is met.
In order to limit reverse currents that may occur, we recommend
using the following safety options:
1) Layout with a limited number of parallel connected strings :
Without undertaking further current blocking measures, a
maximum of two module strings may be operated in parallel on a
single inverter or MPP tracker.
2) Layout with string fuses :
Use overcurrent devices (e.g. fuses) according to the relevant
standards in each string. Use gPV-fuses according to IEC
60269-6. Observe the maximum permitted number of strings as
) of
OC
indicated in the specifications provided by the respective string
fuse manufacturer and the technical guidelines.
NOTE!
When installing different product versions, the lowest minimum
permitted reverse current load capacity applies.
Inverters
Inverters with or without transformers may be used.
INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK_DUO-G10.X
3 Installation
3.1 Safety and transport
Ensure that all personnel are aware of and adhere to
accident-prevention and safety regulations.
While working wear clean gloves.
I
GB
D
§
§
§
Inspect the packaging for damages.
Contact the transport company regarding any
damage to the packaging and follow their
instructions.
Follow any instructions on the packaging.
Leave modules in their original packaging until
installation.
Store the modules securely in cool and dry rooms.
The packaging is not weatherproof.
INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK_DUO-G10.X
Danger! Risk of fatal injury due to electric shock!
Do not install damaged modules.
Inform your distributor of any damages immediately.
Warning! Fire Risk!
Do not install modules indoors.
Do not install modules on moving objects.
11
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