Kikusui PAT160-25T, Operation Manual

Page: 38 / 218

3-4
PAT-T 4kW
3.2 Load Cable
To prevent the possibility of fire.
•
Use a load cable with sufficient current capacity with respect to the
rated output current of the PAT.
• The output terminal and its area nearby gets very high temperature,
use the cable with sufficient heat resistance higher than
85
°
C of the covering materials.
Possible electric shock.
•
Use a load cable with a higher voltage rating than the isolation
voltage of the PAT. For the isolation voltage of each model, see
Chapter 9, “Specifications.”
■
Current capacity of the load cable
If their current rating exceeds the maximum rated output current, the cable will
remain intact even if the load becomes under the condition of short-circuited. Load
cables must be rated to carry the maximum rated output current of the PAT.
■
Allowable current of the cable dependent on the maximum allowable
temperature of the cable insulation
The cable temperature is determined by a current-caused resistance loss, ambient
temperature, and thermal resistance to the outside. Table 3-1 shows the allowable
capacity of current that can flow through a heat-resistant PVC wire (single wire)
having a maximum allowable temperature of 60 ° C when the wire is stretched
horizontally in the air at an ambient temperature of 30 ° C. If the condition is such
that PVC wires with lower heat-resistant temperature are used, the ambient
temperature exceeds 30 ° C, or the wires are bundled resulting in low heat radiation,
the current capacity needs to be reduced.
WARNING