Kikusui PAN 110-1.5A, Руководство по эксплуатации

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3-8 PAN-A
3.3 Connecting load
• The output terminals of this unit are found in two locations,
on the rear panel and the front panel. The terminals on the
front panel, however, are for auxiliary purposes and may not
satisfy the speci
fi ed performance.
• Usually, connect the chassis ground terminal ( ⊥ ) on the front
panel to a - (neg.) output terminal or + (pos.) output terminal
using the shorting bar.
• The PAN16-50A has no output terminal on the front panel.
The shorting bar to connect the output terminal to the chassis
ground terminal (
⊥ ) is mounted output terminals on the rear
panel.
Current capacity of load cables
Load cables must be rated to carry the maximum rated output current
of the unit. If their current rating exceeds the maximum rated output
current, they will carry the maximum current even if a load is short
circuited.
The allowable current of a wire is determined by the maximum allow-
able temperature of the cable insulation, which in turn is governed by
a current-caused resistance loss, ambient temperature, and thermal
resistance to the outside. The allowable currents in Table 3-1 show
the capacity of current
fl owing 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 tem-
perature of 30
˚ C. If the condition is such that PVC wires with lower
heat-resistant temperature are used, ambient temperature reaches
more than 30
˚ C, or the wires are bundled, resulting in low heat radia-
tion, the current capacity needs to be reduced.
Based on this consideration, it is better to make heat radiation as great
as possible to let a larger current
fl ow, as long as wires having the
same heat-resistant temperature are used. For measures against noise
in the load cables, installing the + (pos.) and - (neg.) output lines side
by side or bundling them together is more effective against unneces-
sary noise. The Kikusui-recommended currents shown in Table 3-1
are allowable current values that have been reduced in consideration
of potential bundling of load cables. Use these values as a guideline
when installing load wires.
NOTE