FINAL DRAFT 9/28/95
Magnetic Resonance Imaging
Narrative
General purpose duplex receptacles are
E. Electrical
typically provided on each wall of a room
or space.
1. Illumination
Workstations with personal computers
Illumination is typically provided utilizing
(PC's) are typically provided with
recessed fluorescent luminaries with
quadraplex receptacles for the PC,
acrylic prismatic lenses. The fixtures
monitor, and printer.
typically use F32T8 lamps in compliance
with the National Energy Policy Act of
Junction boxes are provided for
1992. Lamps have a minimum color
equipment
requiring
a
hardwired
rendering index (CRI) of 85 and a color
connection. Provide non-magnetic boxes
temperature of 4100 degrees Kelvin (K),
in the gantry room.
which is close to the "cool white" color
temperature of 4150 degrees K.
Certain modular casework units are
provided with a utility access module with
Lighting intensities conform to the VA
surface-mounted electrical strip mold
design criteria, the IES Lighting
which also provides a chase for wiring.
Handbook and IES publication CP-29,
Conduits and junction boxes are provided
"Lighting for Health Care Facilities". IES
to connect to the utility access module for
CP-29 is currently being updated and will
power wiring.
be replaced by IES
Duplex receptacles on the critical branch
Recommended Practice RP-29 in the
of the emergency power system are
future.
provided for selected pieces of
equipment (such as refrigerators) to allow
Lighting is typically controlled by wall-
for limited operation during a power
mounted switches located at the
outage.
entrance to the room. Larger spaces
may utilize multiple switching by separate
F. Life Safety
switches for lighting of individual zones or
areas.
1. Purpose
Power load densities for lighting are
listed by use for the mechanical HVAC
The life safety program should be
load calculation purposes.
Load
developed to provide a reliable system to
densities should be verified for the actual
protect the building occupants, fire-
design, as they may vary depending on
fighting personnel, building contents,
the room configuration, fixture types,
building structure, and building function.
lamps and ballasts used.
This can be accomplished by limiting the
2. Power
development and spread of a fire
emergency to the area of origin and
thereby reduce the need for total
MRI power requirements have to be
occupant evacuation.
coordinated
with
the
equipment
manufacturer.
VA DESIGN GUIDE
MAGNETIC RESONANCE IMAGING
PAGE 2-9
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