SMA Solar Technology AG
2 Safety
Installation Manual
STP5-9TL-IA-en-10
11
2.2 Qualification of Skilled Persons
The tasks described in this document are intended for skilled persons only. Skilled persons must have
the following qualifications:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical
devices and plants
• Training in the installation and commissioning of electrical devices and plants
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this document and all safety precautions
2.3 Safety Precautions
Electric Shock
High voltages that can cause fatal electric shocks are present in the live components of the inverter.
• Prior to performing any work on the inverter, disconnect it from any voltage source as described
in this document (see Section 10).
Touching an unearthed PV module or an array frame can cause a fatal electric shock.
• Connect and earth the PV modules, array frame and electrically conductive surfaces so that
there is continuous conduction. Observe the applicable local regulations.
Burn Hazards
Some parts of the enclosure can become hot during operation.
• During operation, touch the inverter on the enclosure lid only.
Electrostatic Discharge
Touching electronic components can cause damage to or destroy the inverter through electrostatic
discharge.
• Earth yourself before touching any components.
