Specifications

4-5
Power Supply
Grounding Circuit
The electronic components inside the servers are sensitive to high-frequency electromagnetic
interference. To ensure correct hardware operation, high-frequency interference must be
limited via an equipotential ground circuit and metallic braid shielded cables.
DANGER
For the protection of personnel and hardware, it is mandatory for the grounding network to
be compliant with Data Processing Center requirements and the standards in force.
A single, equipotential grounding circuit dedicated to data processing systems is required. If
the building has several, separate grounding shafts, it is mandatory for them to be
interconnected to eliminate the occurrence different transient potentials within the same unit.
Electric protection wire characteristics (in compliance with Standard NFC 15.100):
• flexible,
• multi-strand,
• black, noise-free grounding wire,
• insulated along its entire length,
• cross-section: 25 mm - 95 mm according to Data Processing Center configuration.
Grounding the Raised Floor
CAUTION:
The raised floor must be grounded in compliance with Standard EN 50174-2.
An equipotentiality mesh must be laid under the raised floor structure. Raised floor actuators
must be grounded with >
10 mm x 2 mm flat, tin-plated braiding connected to the
equipotentiality strap in the dedicated Data Processing Center electricity distribution cabinet.
• Raised floor slab: 60 cm x 60 cm.
• Meshing braid: >
10 mm cross-section tin-plated copper braid.
Note:
At each strut, the meshing braid is attached to the actuator via a metal collar.