3.3.2 Cable assembly instructions
Strain relief
Strain relief prevents mechanical forces from being
transmitted to other parts of the unit via the cable
connection point.
Each panel is provided with three single phase plastic
cable clamps or one three phase plastic cable clamp
(Figure 3-7).
Assembly (standard)
At delivery each cable cone type C is provided
with a “temporarily” mounted allen key transport
bolt M16 x 30.
These bolts must be removed before connecting
the cable.
Plinths can be removed for each panel when fitting the
cables if so desired.
Connect the cables to ensure that no mechanical forces
are created at the cable connection point.
The maximum torque for a C-type cone is 70 Nm.
The weight of the cable and tensile forces originating
from the cable must be absorbed by the cable clamp
blocks on the cable support.
Secure all cables using cable clamp blocks. This is in
order to enable the short-circuit forces to be absorbed in
the event of any short-circuit occurring.
Seal all cable recesses in the floor properly. Use
polyurethane with a compact cellular structure, for
instance. This will protect the cable connection
compartment from rising damp and vermin.
The cable clamp blocks are mounted on an adjustable
frame in the cable connection compartment. The bolts
through the plastic cable clamps must be tightened to a
torque of 20 Nm.
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