Installation; Safety Instructions - Bosch BPT-C 200 Betriebsanleitung

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Bosch Power Tec GmbH
5

Installation

5.1

Safety instructions

Risk of fatal injury due to high voltages
In photovoltaic systems, voltages of U
I = 800 A can occur. Attempting to work on the product and live
DC
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:
 De-energise 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
Risk of fatal injury due to residual voltages
When the central inverter is shut down using the On/Off switch, voltage is
still present at the AC and DC connections and in the internal control
system. After shutting down the system using the On/Off switch, the
capacitors of the central inverter can still carry a residual charge. Residual
voltages inside the device can result in fatal surges.
Open all external disconnectors and secure them against being switched

back on.
 After de-energising the device, always wait for an additional 15 minutes
before touching any components.
Check that the device is de-energised using a measuring instrument, in

accordance with applicable guidelines. The measuring instrument used
must be approved for at least protection class CAT II 1000 V or CAT III
600 V (in accordance with IEC EN 61010-1).
Risk of fatal injury from arcing and short-circuit currents
Very high DC voltages (no zero point) may exist in photovoltaic systems
employing the product, which could cause arcing in the event of faults or if
components such as fuses or plugs are not used in the specified manner.
The short-circuit current of the solar generator is only slightly higher than
the maximum operating current and is always dependant on current
irradiation levels. This means that, where short circuits occur, there is no
guarantee that circuit breakers will be tripped.
Use external an DC disconnector

Use components of the photovoltaic system in accordance with their

manual
Risk of fatal injury due to lack of assistance
In the event of an accident, a second person can switch off the power
supply and provide assistance.
 Work should only be carried out when a second person who has been
trained to provide suitable assistance is present.
Installation | 49
= 1000 V and currents of
DC
BPT-C 200, 300, 350 | Operating manual