SMA SUNNY ISLAND 3.0M Installation And Quick Reference Manual page 9

SMA Solar Technology AG
Danger to life from electric shock due to live voltage
High voltages are present in the off-grid system. When covers (e.g., an enclosure lid) are removed, live components
can be touched, which can result in death or serious injury due to electric shock.
• When carrying out any work on the electrical installation, wear suitable personal protective equipment.
• Turn off or disconnect the following devices from voltage sources in the given order:
– Loads
– Generator
– Sunny Island
– In the distribution board, the circuit breakers of the Sunny Island inverter and of the generator
– Load-break switch of the battery
• Ensure that the off-grid system cannot be reconnected.
• Open the enclosure lid on the Sunny Island inverter and ensure that no voltage is present in the device.
• Ground and short-circuit the AC conductors outside the Sunny Island inverter.
• Cover or isolate any adjacent live components.
Chemical burns and poisoning due to battery electrolyte
If handled inappropriately, battery electrolyte can cause irritation to the eyes, respiratory system, and skin and it can
be toxic. This may result in blindness and serious chemical burns.
• Protect the battery enclosure against destruction.
• Do not open or deform the battery.
• Whenever working on the battery, wear suitable personal protective equipment such as rubber gloves, apron,
rubber boots, and goggles.
• In the case of acid splashing into eyes or on skin, rinse thoroughly with clear water and consult a doctor.
• If acid fumes have been inhaled, consult a doctor.
• Install, operate, maintain, and dispose of the battery according to the manufacturer's specifications.
Risk of injury due to short-circuit currents
Short-circuit currents in the battery can cause heat build-up and electric arcs. Burns or eye injuries due to flashes may
result.
• Remove watches, rings, and other metal objects.
• Use insulated tools.
• Do not place tools or metal parts on the battery.
Risk of crushing injuries due to movable generator parts
Moving parts in the generator can crush or sever body parts. A generator can be started automatically by the
Sunny Island.
• Only operate the generator with the safety equipment.
• Install, maintain, and operate the generator according to the manufacturer's specifications.
Installation - Quick Reference Guide Off-Grid-IS-en-30
2 Safety
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