Datasheet

IT power distribution Residual current monitoring
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bachmann.com30
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bachmann.com
Maximum availability and safety
with BlueNet RESIDUAL CURRENT MONITORING (RCM)
Using residual current monitoring allows changes in the level of insulation to be detected at an early stage before protective devices
are tripped by a high residual current, that puts people at risk and involves the risk of fire.
This gain in time allows countermeasures to be planned and contributes to the high availability of the power supply and therefore the
system. Thanks to the Bachmann BlueNet PDU, this residual current monitoring isn't just undertaken at central measuring points,
but on the socket outlets of every consumer. This standard-compliant residual current technology, the result of a joint development
with Bender, provides a high physical granularity, maximum safety and high availability. This AC / DC sensitive technology monitors
all kinds of residual current in modern power supplies with switching power. The new BlueNet residual current PDU is therefore
particularly suited to use in IT.
Permanent monitoring is absolutely essential in modern information technology. Continuous monitoring equipment reduces the
work involved in statutory repeat tests. In accordance with accident prevention guidelines (BGV A3), the testing dates for measuring
insulation can be adapted to suit actual circumstances and optimise costs using permanent RCM. DIN VDE 0100-410 (Protective
measures – protection from electric shock) is also applied as prescribed by law for final circuits of up to 20 A without use of an RCD,
which may result in undesired switching off.
The BlueNet residual current monitor is able to record residual currents of 5 mA and higher. Residual current activation values can
be set in the BlueNet software. BlueNet Software reliably signals instances where these values are exceeded. All measured values
are transferred to superordinate monitoring systems via the Ethernet interface. A local display in the PDU also provides information
about all important measured values.
This setup ensures that the availability of the power supply has absolute priority at all times and that the system is not unexpectedly
cut off in the event of errors.
The BlueNet technology also allows a master-slave network to be installed, saving installation costs and minimising the administra-
tion work involved.
Greater safety for people, operations and systems:
∙ Early detection of data loss and network failure
∙ DIN VDE 0100-410 is applied as prescribed by law for final circuits of up to 20 A without use of an RCD
∙ Recording of residual currents at the consumer socket outlet directly for the fastest possible error localisation
∙ Preventative safety to protect people from the hazards caused by electric current
∙ Faults and unexpected interruptions to the operation of sensitive equipment are minimised
∙ Insulation errors in newly installed systems and devices are detected immediately
∙ Permanent monitoring of systems and operating equipment
∙ TN-S systems are monitored for additional unwanted N-PE bridges
More cost-effective
∙ Continuous monitoring equipment reduces the work involved in repeat tests.
In accordance with §5 of the accident prevention guidelines BGV A3, the testing dates for measuring insula-
tion can be adapted to suit actual circumstances using permanent RCM.
∙ No expensive and unscheduled system downtimes and service interventions
Greater fire protection
∙ Combustible residual currents are recognised as they arise.
The
advantages
at a glance
IT power distribution Residual current monitoring