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INSTALLATION AND OPERATION MANUAL SOLAR MODULES DUO-G5.X – HANWHA Q CELLS – EN
INSTALLATION AND OPERATION MANUAL SOLAR MODULES DUO-G5.X – HANWHA Q CELLS – EN
2 PLANNING
2.3 Mounting options
Module Selection
For detailed key electrical data, please refer to the actual
data sheet referring to the relevant Module (available at
www.q-cells.com).
Ä
For maximum energy yields, mismatches of specified
electric current (I
MPP
) of more than 5 % should be avoided
for all modules connected in series.
Safety Factor
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
OC
) of
components
•
Calculating the current measurement values (I
SC
) of
conductors
•
Sizing of control systems connected to the outlets of
the solar modules
Ä
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.
Ä
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.
Ä
Take the voltage limit of the inverter into account when
determining the maximum number of modules in the
string.
Parallel Connection
Modules may be damaged by the occurrence of reverse
currents (caused by module defects, ground leaks, or
defective insulation).
Ä
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 :
Place fuses for each string of modules at the plus and
minus ends. Observe the maximum permitted number
of strings as 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.
2.4 Electrical layout
2 PLANNING
Specifications
MODULE TYPE
MOUNTING
OPTION
POSITION OF
CLAMPS* [MM]
TEST LOAD
PUSH/PULL**
[PA]
DESIGN LOAD
PUSH/PULL**
[PA]
SAFETY
FACTOR
Q.PEAK DUO-G5.X
Q.PEAK DUO BLK-G5.X CL1 / CL3
250 - 450
5400/4000
3600/2670
1.5
FB1 / FB2
345
IP1
-
CL1
0 - 250
450 - 550
2400/2400
1600/1600
CL2
0 - 250
CL4
0 - 300
CL5
short side: 0 - 250
long side: 300 - 400
4000/4000
2670/2670
MODULE TYPE
MOUNTING
OPTION
POSITION OF
CLAMPS* [MM]
TEST LOAD
PUSH/PULL***
[PA]
DESIGN LOAD
PUSH/PULL***
[PA]
SAFETY
FACTOR
Q.PEAK DUO-G5.X
Q.PEAK DUO BLK-G5.X IP2
-
2400/2200
1600/1470
1.5
*
**
***
Distance between outer edge of module and middle of the clamp.
Loads according to IEC 61215-2:2016 and UL 1703.
Test sequence according to IEC 61215-2:2016.
ATTENTION
Ä
The loads in the table are related to the mechanical stability of the solar modules. The mechanical stability of the
mounting system including clamps has to be evaluated by the system supplier. The system installer is responsible
for the determination of location-specific load requirements.
Ä
Ensure, that the subconstruction does not touch the junction box (even under load).
Ä
Ensure, that the connection cables of the junction box do not run between laminate and mounting rails.
Ä
Ensure, minimum support depth of 15 mm on the back side of the module for IP2, CL2 and CL4. Ensure minimum
support depth of 10 mm on the front side of the module for IP2.
Ä
Module bend under loads. Therefore, sharp objects (e.g. screws) must not be mounted near the module backside.
Ä
Use M8 corrosion-proof screws and washers (diameter
≥
15.8 mm or
≥
0.62 in) for FB1 and FB2 mounting.
