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4 Installation
4.1
Regulations and notes
4.2
Electrical connection
10
The electrical connection must only be carried out by properly qualified per-
sonnel.
The choice of cable, the installation and the electrical connection must con-
form to the requirements of VDE 0100 "Regulations on the Installation of
Power Circuits with nominal voltages below 1000 V" or the appropriate
local regulations.
If contact with live parts is possible while working on the unit, it must be
completely disconnected from the supply.
Earth the instrument at the PE terminal with the protective earth conductor.
This cable must have at least the same cross-section as used for the supply
cables. Earth cables must be wired in a star configuration to a common
earth point that is connected to the protective earth of the supply. Do not
loop earth cables, i.e. do not run them from one instrument to another.
Make connection according to the connection diagram
Fig. 6 Type STM-RW-2
Fig. 7 Type STM-RW-2/OS
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