Mounting Instructions
ProfiDAT
®
Data Transmission System
Programm 0514
MAL0514-0005b-EN
www.conductix.com
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page 38 of 82
6.3
Grounding
The system operator must ensure sufficient grounding of the steel structure, especially the painted components. Safety regulations
and country-specific directives for the grounding of electrical equipment (e.g. VDE/UVV/VBG4) must be followed.
The grounding of the steel structure must be taken into consideration for different application cases:
Protection against electrical shock
Lightning protection
DANGER!
Risk of death by electrical shock!
The steel structure may be at high voltage if it is
not properly grounded
.
Contact with the steel structure can lead to death or severe injury. There is also a high risk of
injury from overreaction caused by electrical shock.
Read and follow the locally applicable and international guidelines for proper ground
installation and lightning protection.
Provide the grounding installation that is appropriate to the architecture of the power
grid at the place of installation of the system (TT network or TN network).
Connect the steel structure to the grounding installation.
Install a conductive connection between all parts of the steel structure. Use toothed
washers for screw connections or other suitable components to establish a conductive
connection between coated components
Regularly check the proper grounding of the steel structure.
6.3.1
TN Network
In a TN network, the ProfiDAT
®
profile (ground conductor rail) is connected by a cable directly to the grounded star point of the
power supply transformer.
The total impedance between phase conductor and PE conductor must not exceed 0.16 Ω.
6.3.2
Grounding Implementation Instructions
The ProfiDAT
®
profile (ground conductor rail) must be connected to the load-bearing profile at the start and end, as well as at
every fifth conductor rail joint. The cross-section of the connector cable must be at least 16 mm².
Locally applicable standards or regulations may require different (lower) grounding impedance values. The system operator
must check the locally applicable standards or regulations and implement the grounding system accordingly.
The grounding impedance must be measured during installation and a test report prepared with the following content:
Condition of the grounding unit,
Extent of corrosion and corrosion protection,
Fastenings of the cables and components,
Measurement of grounding impedance,
Documentation of modifications and extensions.
