CHAPTER 3 - INSTALLATION AND CONNECTION
44
Figure 3.9 g) and h) - Location of the Power/ Grounding, Control Connections and Fan Voltage Selection
3.2.3 Recommended Power/
Grounding Cables
Thedescribedspecicationsintables3.6and3.7arevalidonlyfor
the following conditions:
Copper wires for 70°C (158°F) with PVC insulation, with ambient
temperature of 40°C (104°F), installed in horizontal or vertical holed
conduits, with cables arranged in a single layer.
Naked or silver coated copper busbars with round edges and
radius equal to 1mm with room temperature of 40°C (104ºF) and
bus temperature of 80°C (176ºF).
Note: When external By-pass contactors are applied, use the same
cables or busbar applied for the motor connection.
NOTE!
For correct cable sizing, consider the installation condition, the ma-
ximum permitted line voltage drop, and follow electrical instructions
denedbylocalregulations.
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