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INSTALLATION AND OPERATION MANUAL CRYSTALLINE SOLAR MODULES Q-CELLS SE - AUSTRALIA
5.4 GROUNDING
In case modules are installed within 500 m of the coastline, a functional grounding of the
photovoltaic generator has to be installed.
DANGER! Incorrect grounding causes risk of fire hazard!
The direct grounding of the positive or negative conductor is only permitted if any hazards for
persons can be excluded. Comply to all valid regulations for personal safety and fire prevention.
For the installation of a functional grounding:
• Only use galvanic isolated inverters (inverters with transformers).
• Ground the negative conductor of the PV-generator.
• Only unse grounding kits which are compliant with the inverter.
• Meet all earthing instructions of the inverter manufacturer.
In accordance with local statutory regulations, we recommend grounding of each module to the
grounding points (Figure 1) with a Parker screw. Attach the screws as shown in Figure 3. Use
Parker screws according to DIN 7981, material A2, size 5.5 mm x 16 mm.
FIGURE 3:
Attachment of the grounding
DANGER! Life danger due to electric shock!
Physically disconnecting contacts in a live electrical circuit can cause arching, resulting in
grave or mortal injury.
• Carry out work on the inverter and the electrical cables with extreme caution.
• Never disconnect the plug when under load.
• Ensure that the modules are disconnected at the inverter prior to disconnection from one
another.
• Be absolutely certain to observe the time intervals specified by the manufacturer after
switching off the inverter and prior to starting subsequent work such that the energised
components can be discharged.
• Cover the module for the duration of the assembly with opaque material. Only then is the
module reliably de-energised.
• Never touch live contacts with your bare hands. Use only insulated, dry tools for the instal-
lation.
• Pay attention to the correct polarity when connecting. The connectors are labelled with plus
for the positive terminal and minus for the negative terminal.
• Do not open the junction box under any circumstances. The bypass diode must not be
removed.
FUNCTIONAL
GROUNDING
SYSTEM BONDING
SAFETY INSTRUCTIONS
1 Stainless Parker screw
2 Stainless washer (cable lug)
3 Stainless serrated lock washer
4 Module frame
5.5 ELECTRICAL INSTALLATION
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2
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4
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