47
INSTaLLaTION aND CONNECTION
Insert the fixing clamps into the housings of the device.
Figure 45: Installation
Tighten the fixing clamps with the hex key provided with (14 x 91 x 1.5 mm).
Figure 46: Hex key detail
Adhere to the permissible torque when tightening the threaded pin of the
mounting clamp: 0.2 Nm.
Repeat steps 2 and 3 for all fixing clamps.
Figure 47: Installation
3.9.4 Grounding and bonding
Whenever two electrical devices are connected to each other both may have a diffe-
rent potential to ground. The longer the distance between them the higher might be
the difference of potential. Influenced by the current which is circulating between these
devices, signals may be disturbed until complete loss of connection or hardware may be
destroyed. Therefore it is necessary to have a good equipotential system which can be
achieved by the following measures: