Section 4:
UNINTERRUPTIBLE POWER SYSTEMS
4.1
Requirements. Uninterruptible power system (UPS) will use
centrally-procured Government-Furnished Equipment (GFE). GFE includes the
UPS module and the UPS battery. The emergency generator is not normally
included as part of the GFE. Procurement of this equipment is beyond the
scope of this handbook. However, the installation of such equipment in
conjunction with auxiliary systems must be properly designed, which requires
an understanding of the specialized equipment and concepts involved. This
section covers the equipment installation criteria which, when integrated
with the individual project requirements, shall produce a safe, reliable,
and cost efficient design.
4.2
Criteria. The latest issues of the following documents shall be
used to ensure correct installation of the GFE equipment:
SUBJECT
SOURCE
UPS Module...................Manufacturer's installation instructions
Battery......................Manufacturer's installation instructions
Emergency Power..............IEEE 446, Recommended Practice for
Emergency Standby Power Systems and
DM-12.1, Electronic Facilities
Engineering
Environmental
considerations
(mechanical design)..........DM-3 and DM-12.1
4.3
Power Load Categories. Power load categories are illustrated in
Figure 4 of DM-12.1. The pertinent categories, listed below, are defined in
DM-12.1:
a)
Station load
b)
Nonoperational load
c)
Operational load
d)
Utility load ("nontechnical load")
e)
Electronic load ("technical load")
f)
Noncritical electronic load ("noncritical technical load")
g)
Critical electronic load ("critical technical load")
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