Bender B 7301 0020, Руководство по эксплуатации

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7 TGH1444en/04.2011
2. Safety
2.1 General
In addition to this manual, the documentation of the device includes a docu-
ment entitled "Important safety instructions for Bender products“.
2.2 Intended use
The voltage monitor VMD423 is used in 3(N)AC systems in accordance with
VDE V 0126-1-1 for undervoltage, overvoltage, underfrequency and overfre-
quency monitoring. The device is suitable for the nominal voltage range U
n
=
0...500 V in the frequency range 40...65 Hz.
The VMD423 requires a separate supply voltage U
s
.
2.3 Skilled person
Only electrically skilled persons are authorised to install and commission this
device. Electrically skilled persons are those who have the relevant education,
knowledge and experience, as well as knowledge of the relevant safety stand-
ards and who are able to perceive risks and to avoid hazards which electricity
can create when work activities are carried out on electrical installations. The
electrically skilled person is specially trained for carrying out work activities in
his specific working environment and has a thorough knowledge of the rele-
vant standards and regulations.
In Germany, an electrically skilled person must meet the requirements of the
accident prevention regulation BGV A3. In other countries the applicable reg-
ulations have to be observed and followed.