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Power Distribution Panel and its FBI
8.1.
INTRODUCTION
Power Distribution Panel (PDP) forms a part of Vertical Pillar Assembly in the Iron
work as shown in Fig. 8.1. PDP is used for further distributing -48V and -48V gnd to
the eight cabinets in the suite. One PDP is present in each suite. -48V is distributed
to cabinets through MCBs/Fuses which are mounted on the PDP. The indication of
the blowing of fuses/tripping of MCBs is given on Fuse Blown Indicator Card (FBI),
which is mounted on PDP. This chapter gives details regarding PDP installation
and mounting of FBI card on PDP and setting of shorting stubs on it.
8.2.
PDP INSTALLATION
As this forms a part of Iron work, no separate unpacking and installation are
required.
8.2.1.
Visual Check
It is ensured that
• All copper bars are mounted firmly,
• The fuse blocks have screws for mounting the wires,
• All the wire clamps are there,
• All the fuse holder and fuses are there and are properly fixed. The number
of fuses will depend on the configuration of the site.
8.2.2.
DP FUSE PLACEMENT
The distribution of -48 volts supply from DCDP to the cabinets in suite is
done through Fuses/MCBs mounted on the PDP. Each copy of a cabinet gets
supply through an independent Fuse/MCB. The Table 8.1 mentions the
power distribution. Fig. 8.2 shows the Fuse/MCB placement.
INSTALLATION MANUAL
Chapter 8.
Mounting
85
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