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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4 Electrical connection
4.4 After installation
Ensure that all necessary safety and functional tests
have been carried out according to applicable
standards.
Note! Module damage may occur!
Ensure that the plug connections are secured away
from any water-channelling surface.
Integrate the system into the existing lightening
protection system in accordance with the applicable
local regulations.
Warning! Fire Risk!
Do not use light concentrators (e.g. mirrors or lenses).
Ensure that the cabling is not exposed and / or
hanging and is protected from dirt, moisture and
mechanical friction.
5 Grounding
Protective Grounding
In order to prevent electrical shock or fire, the frame of the
module as well as any non-current-carrying metal parts of the
system must be grounded. While this section provides some
information about grounding the Qcells frames and modules,
reference should be made to local statutes and regulations for
specific requirements on grounding. The U.S. National Electrical
Code addresses these issues in Article 250. A module with
exposed conductive parts is considered to be in compliance
with this standard only when it is either electrically grounded
in accordance with the manufacturer’s instructions and the
requirements of the National Electrical Code, ANSI / NFPA 70
(2014-2017), or when the bonding means has been evaluated with
this module to UL 2703.
Proper grounding is achieved by bonding all exposed non-
currentcarrying metal equipment to the appropriately sized
equipment grounding conductor (EGC) or racking system that can
be used for integrated grounding.
Qcells frames are protected from corrosion with an anodized
coating, which has to be penetrated in order to ensure proper
bonding. The different methods listed below are suggested
methods for an appropriate bond between the frame and the
EGC or racking system (that will have to be properly grounded).
The method appropriate for any individual installation will depend
on multiple factors.
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Dimensions shown are in inches.
0.177” (+0.008/-0)
±0.08
0.79”
0.47”
±
0.08
Option A: Use of a grounding lug
A listed grounding lug can be bonded to the frame using the
grounding holes pre-drilled in the frame. These holes are
marked with a ground symbol, as shown below on the frame
section drawing: To install the grounding lug, follow the specified
instructions of the manufacturer. The grounding lug should be
made of stainless steel or tin plated metals such as aluminum to
avoid corrosion.
The grounding lug should be attached to the frame grounding
hole using a stainless steel screw, toothed lock washer or KEPS
nut (in order to penetrate the anodized layer) and backing nut.
Care should be taken to avoid the use of grounding hardware of
dissimilar metals, which may lead to corrosion.
Option B: Integrated grounding methods
The Qcells modules can be bonded with the racking system
using UL1703 or UL2703 certified integrated grounding methods.
The racking system will then have to be grounded so that the
overall system is properly grounded. The listed racking system
and grounding device should be installed in accordance with
the manufacturers’ instructions. An example of such integrated
grounding method is the use of a WEEB clip or Schletter plate
between the module and the racking system, when mounting the
module.
The WEEB washers are generally compatible with Qcells
modules, however each combination module / racking system
requires a specific WEEB washer size. Note that WEEB clips
are intended for single use only; they must not be reused after
removal or loosening. Refer to Wiley’s installation instructions for
the specific use of WEEB washers.
An example of such integrated grounding method is the use of a
washer recognized as meeting UL2703 requirements between
the module and the racking system, when mounting the module.
For example, WEEB washers are generally compatible with Qcells
modules, however each combination module / racking system
requires a specific WEEB washer size. Note that WEEB washers
are intended for single use only; they must not be reused after
removal or loosening. Refer to Wiley’s installation instructions for
the specific use of WEEB washers.
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Dimensions shown are in inches.
PV Laminate
Backing Nut (Stainless Steel)
Toothed Lock Washer (Stainless
Steel)
Grounding Lug (Stainless Steel
or tin-plated metal)
Equipment
Grounding
Conductor
Aluminum
Frame
Screw (Stainless Steel)
