SMA SC 500HE-US Maintenance Manual - Manual (Page 13)

SMA America, LLC 2 Safety
Maintenance Manual SC500HEUS-eng-WH-IUS120411 13
Environmental Hazards
Hazards Due to Human Error
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Damage to electronic component parts due to electrostatic discharge
Electrostatic discharge can damage or destroy electronic component parts.
• Observe the ESD safety regulations when working on the unit.
• Wear personal protective equipment.
• Discharge the electrostatic charge before touching electronic component parts, for example
by touching the door's PE connection.
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Danger to life due to blocked escape routes
In hazardous situations, blocked escape routes can lead to serious injury or death.
• An escape route at least 3 ft (915 mm) wide must be available at all times.
• Do not place any objects in the escape route area.
• Remove all tripping hazards from the escape routes.
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Damage to the inverter caused by dust or moisture penetration
Dust intrusion or moisture penetration can damage the inverter or impair its functionality.
• Do not open the inverter when it is raining or when humidity exceeds 95%.
• Perform maintenance on the Sunny Central only when the environment is dry and free of dust.
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Danger to life due to electric shock when inverter is unlocked
Unlocked inverters can be opened by unauthorized persons. This means that unauthorized persons
have access to component parts on which lethal voltages are present.
• Ensure that unauthorized persons have no access to the inverter.
• Always lock the inverter.