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INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO XL-G10.X / BFG AND XL-G10.X / BGT – Q CELLS
INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO XL-G10.X / BFG AND XL-G10.X / BGT– Q CELLS
Module Selection
For detailed key electrical data, please refer to the product data
sheet for the respective product (available at www.q-cells.us).
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. Accordingly, the values of I
SC
and V
OC
marked on the
module should be multiplied by a facot of 1.25 when determining:
•
the component voltage ratings,
•
conductor ampacities,
•
fuse sizes,
•
size of controls connected to the PV output.
Refer to Section 690-8 of the National Electrical Code for an
additional multiplying factor of 125 percent (80 percent derating)
which might be applicable.
Ä
Please follow the valid national guidelines for the installation
of electrical systems (refer to section 690-8 of the NEC for an
additional multiplying factor of 125 percent [80 percent derating]
which may be applicable).
Series Connection
Connection of modules in series is only permitted up to the maximum
system voltage as listed in the applicable data sheet.
Ä
Take into account all possible operating situations and all relevant
technical norms and regulations when designing the system.
This will ensure that the maximum system voltage, including all
necessary safety margins, is not exceeded.
Ä
Take the voltage limit of the inverter into account when deter-
mining 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 :
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 indicated
in the specifications provided by the respective string fuse manu-
facturer 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 PLANNING
2.4 ELECTRICAL LAYOUT
2 PLANNING
2.3 MOUNTING OPTIONS
Specifications for TB1a, TB1b, TB2a, TB2b and TC1 Mounting Options
8.7
(220)
8.7
(220)
3.9
(100)
3.9
(100)
4.7
(120)
5.5
(140)
5.5
(140)
Limited area 1
[in (mm)]
Limited area 2
[in (mm)]
4.9
(125)
Limited area 3
[in (mm)]
For TC1, TB1a and TB2a
For TB1b and TB2b
CLEARANCE [in (mm)]
TES
T L
O
A
D [P
a]
Limited Area 1
Limited Area 2
Limited Area 3
0.2 (5)
0.39 (10)
0.6 (15)
0.8 (20)
1.0 (25)
1.2 (30)
1.4 (35)
1.58 (40)
400
800
1200
1600
2000
2400
2800
3200
1.77 (45)
CLEARANCE [in (mm)]
TES
T L
O
A
D [P
a]
Limited Area 1
Limited Area 2
Limited Area 3
0.2 (5)
0.39 (10)
0.6 (15)
0.8 (20)
1.0 (25)
1.2 (30)
1.4 (35)
1.58 (40)
400
800
1200
1600
2000
2400
2800
3200
1.97 (50)
Fig. 3:
Definition of limited areas.
Fig. 4:
Push loads in relation to minimum clearance
between frame bottom edge and substructure.
NOTE
For a requested push load maintain a minimum distance (clearance)
between the bottom module plane (level of bottom frame leg) and
closest substructure element below solar module laminate. The
minimum clearance is defined by the maximum test push load and
the limited area where the substructure element is located beneath
the module (see figure 3 and 4).