INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO XL-G11.X / BFG
INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO XL-G11.X / BFG
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11
2 Planning
2.3 Mounting Options
MOUNTING
OPTION
REQUIREMENTS
All
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
listed test load values have been determined with the following clamp parameters: clamp width =
1.57 in (40 mm) and clamp depth = 0.39 in (10 mm).
The system installer is responsible for the determination of location-specific load requirements.
Ensure that the connection cables of the junction box do not run between laminate and mounting
rails.
Modules bend under load. Therefore, sharp objects (e.g. screws, ballast stones, rail ends, rails
with burrs or sharp corners) must not be placed near the module backside so as not to touch the
laminate under load.
Ensure that the junction boxes do not touch the mounting structure (e.g. shorts rails, ballast, etc.)
or the rooftop under load. Clamps or insertion profiles etc. must not touch the glass (even under
load).
Unbalanced loads (e.g. snow overhangs, snowdrifts) which result in locally significantly increased
loads must be removed or avoided by technical measures.
A minimum support depth of 15 mm is required on the back side of the module.
CL1a, CL3,
FB1, FB2, mFB2
TB2a, TB2b
Ensure that module frame is fixed directly on the rail of the substructure (no spacer allowed
between the module and substructure).
CL1a, FB1
These mounting options are not recommended as mounting rails will cast shade on the module
rear side.
FB1, FB2,
TB1a, TB1b, TB2a TB2b,
mFB2
Use M8 corrosion-proof screws and washers (diameter ≥ 0.62 in (15.8 mm)) for mounting slots (Detail
A, Fig.1) and M6 corrosion-proof screws and washers or bobtails for tracker slots (diameter ≥ 0.51 in
(13 mm); Detail B, Fig. 1). Mounting screws and washers should have the same material properties.
TB2a, TB2b
Mounting rails need to extend beyond the middle of mounting holes by at least 0.67 in (17 mm).
TC1
Ensure minimum support depth of 0.47 in (12mm) on the backside and 0.39 in (10 mm) on the front
side of the module.
mFB2
Mounting rails need to extend beyond the middle of mounting holes by at least 0.79 in (20mm).
Clamps must not extend beyond the mounting rails.
2 Planning
2.3 Mounting Options
Specifications for TB1a, TB1b, TB2a, TB2b and TC1 Mounting Options
100
257
257
100
100
120
160
160
Limited area 1 [mm]
Limited area 2 [mm]
CLEARANCE [mm]
TES
T L
O
AD
[P
a]
Limited Area 1
Limited Area 2
5
10
15
20
25
30
35
40
45
200
600
400
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
50
55
60
65
Limited Area 1
Limited Area 2
TB1b, TB2b
TC1, TB1a, TB2a
Fig. 3:
Definition of limited areas.
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).
Fig. 4:
Push loads in relation to minimum clearance between
frame bottom edge and substructure.
