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2/20 18 | MONITOR | MAGAZINE FOR ELECTRICAL SAFETY 18 2 Complex Connections. Made Simple. Made Safe The new COMTRAXX® CP9xx alarm indicator and operator panel Concept "solar filling station Euskirchen": Parking and refuelling at the same time - more dynamics for e-mobility Additional page "Practical Expertise" at the back of the booklet for collection! Practical implementation of the central earthing point System Grounding in the Americas, Australia, South Africa and Other Regions | MONITOR |1/2016 Practical Page A Expertise Practical implementation of the central earthing point Newly constructed electrical instal- lations designed as earthed systems (TN systems)nowneed tobe installed asTN-S systems. ”444.4.3.1 TN-C systems are not to be used in newly constructed buildings that contain or are likely to contain a significant amount of information technolo- gy equipment. Maintaining TN-C systems in existing buildings is not recommended when these buildings contain or are likely to contain a significant amount of information technology equipment.” FromDIN VDE 0100-444:2010-10 Low-voltage electrical installations–Part 4-444:Protectivemeasures –Protection against interference voltages and electro- magnetic disturbances Power supply systems designed as TN-S systems with central earthing points are the basis for high levels of system availability and safety. For a newly constructed installation, it is sufficient to set up a clean TN-S system from the supply point. From PEN splitting to PE andN, no further connection exists between the neutral con- ductor and earth (PE). This design guarantees a high level of electromagnetic compatibility within the system and largely avoids interference currents on equipotential bonding conductors, shielded cables and third-party conductive components in thebuilding structure. 48 2/2018 | MONITOR | CEPmonitoring with a residual current sensor fromBender

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