SMA SI 4548-US - Manual (Page 29)

SMA America, LLC 3 Safety
Operating Manual SI4548-6048-US-BE-en-20 29
3.3 Potential Hazards
Installation altitude
The Sunny Island has been designed for use at altitudes of up to 9,840 ft (3,000 m) above
MSL. Please contact SMA before using the device at altitudes above 9,840 ft (3,000 m).
A performance loss of 0.5% per 330 ft (100 m) is to be expected starting at an altitude of
6,560 ft (2,000 m) above MSL.
Electric shock from touching live components
Death or serious injuries. In order to ensure complete protection against contact, comply with the
following observing this document:
• Ensure that the Sunny Island is correctly mounted.
• Ensure that the Sunny Island is properly grounded.
• Ensure that all connections are correctly made.
• Ensure that the enclosure lid is firmly closed.
Danger to life due to high voltages in the stand-alone grid
Death or serious injury possible due to electric shock. The Sunny Island can start on its own.
• Before working on the stand-alone grid, switch off and disconnect all AC and DC power
sources.
• Ensure that the system cannot be reconnected.
• Open the enclosure lid of the Sunny Island and ensure that no voltage is present.
• Ground and short-circuit the AC cables outside the Sunny Island inverter.
• Cover or isolate any adjacent live components.