Siemens 6SL3210-1SB11-0UA0 [285/318] Equipotential bonding

Siemens 6SL3210-1SB11-0UA0 [285/318] Equipotential bonding
Cooling circuit and coolant properties
10.4 Equipotential bonding
Manual
Manual, 01/2011, 6SL3097-4AC10-0BP2
285
10.4 Equipotential bonding
All components in the cooling system (SINAMICS units, heat exchanger, piping system,
pump, pressure compensator, etc.) must be connected to an equipotential bonding system.
A copper bar or stranded copper with the appropriate conductor cross-sections must be used
for this purpose to eliminate electrochemical processes.
If the installation comprises more than one control cabinet, they must be bolted together with
good conductivity (e.g. bolt cabinet cross-beams together directly at several points to
establish a conductive connection). This eliminates potential differences and, in turn, the risk
of electrochemical corrosion. A PE bar must be installed in every cabinet (including the
recooling system) and the individual bars interconnected.

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