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10 Safety instructions
Safe installation, start-up and maintenance
This section contains the safety instructions which you must follow when installing,
commissioning and maintaining the inverter station. If ignored, physical injury or death may
follow, or damage may occur to the equipment.
Only authorized electricians are allowed to install, start-up and maintain the inverter station.
Working methods, tools, components etc. must follow the IEC regulations.
Obey all installation safety standards. This can require, among other things, the use of
personal protection equipment (PPE), such as arc-proof clothing, arc-proof masks, protective
footwear, protective gloves, eye protection and hearing protection. High power inverter
installations have high fault currents. Select appropriate arc-proof clothing. Always follow
the local safety regulations concerning the inverter stations.
PVS800-IS is a low voltage (LV) device which is connected via a step-up transformer to the
medium voltage (MV) grid. The PVS800-IS inverter station may only be energized and
de-energized by an authorized person who has task-specific instructions for the operation
of an MV substation and permission from the on-site foreperson in charge of electrical work.
If other people must be in the vicinity while the door is open, warn them, and if required,
provide supervision and guidance.
￭
General safety instructions
WARNING!
Before any work, perform the safety precautions steps described below.
1. Clearly identify the work location.
Read the safety instructions of the work area and the component you are working on.
See the subsections below and component-specific manuals.
2. Disconnect and secure against reconnection.
Disconnect all possible power supplies. Lock the disconnectors in the open position
and attach a warning notice to them. After disconnection of the inverters, always wait
for 5 minutes to let the intermediate circuit capacitors discharge.
3. Protect against any other live parts.
4. Take special precautions when close to exposed conductors.
5. Check that the installation is dead.
Always measure to ensure that there is no voltage connected.
6. Carry out earthing (grounding) and short circuiting.
7. Issue a permit to work.
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