Bosch Power Tec GmbH
Storage system |
User manual
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DO_BA_2013_H
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_A_3ENG_BBo
17.01
.2014
English
Safety | 19
Risk of fatal injury: Solar generator
DANGER
Risk of fatal injury due to high voltages
In photovoltaic systems, high voltages and high
currents can occur, even when all specifications are
observed. Attempting to work on the device and live
components at these high voltages and current
strengths can prove fatal. When performing work of
this nature, please note that the photovoltaic
system's solar generator is always active during
daylight hours.
Before starting any work on electrical systems:
Disconnect the system
Ensure that it is secured against being switched
back on
Verify that the system is fully de-energised
Earth and short-circuit the system
Cover or shield any adjacent live components
DANGER
Risk of fatal injury due to earthed solar generator
In typical applications, which many engineers would
expect to encounter, the solar generator is structured
like an insulated grid and is not earthed.
A earthed solar generator, on the other hand,
behaves like a TN grid. This can cause engineers to
reach decisions under false assumptions when
detecting residual currents (earth faults), which in
turn can have potentially life-threatening
consequences.
Clearly mark earthed solar generators
Only implement the earthing using clearly labelled
switching and safety devices
