740
Example Service Module: Opening Configuration
Each radiology room has a special wireway carrying power at 120/207
volts to a position over the circuit breaker and control room. The circuitry
to transformers and equipment is assumed to be within the functional
zone. The large group of control wiring is shown distributed from the
control room over the ceiling-platform in S5 to the drop positions in the
radiology room. The wiring could be housed in either conduit or wireways
along this route. The voltage transformers are assumed within or adjacent
to the radiology room.
The branch communication wireways have been shown in separate
hanger spaces from the electrical. This arrangement is not mandatory but
is desirable for clarity of layout where it can be achieved. In this example,
the wireways would primarily carry telephone lines.
The conduit runs from the branch wireways for lighting and power drops to
the functional zone have been included in the first two left-hand bays to
indicate the kind of pattern that would develop in the S5 subzone.
In several instances, the subzone available in a hanger space for electrical
branches is not used. This moderate use would be generally true in some
areas of the hospital. But immediately adjacent to the radiology rooms the
heavy demand on wireways for power and control circuits would require
more room, in this case the equivalent of two 4" x 4" or 6" x 6" wireways.
Such local conditions are easily handled. Here the plumbing branches are
excluded from those hanger spaces where this condition occurs to allow
more dimensional freedom.
Again, a much higher specificity of detail is shown in the diagrammatic
representation than is normally found in traditional work, and is very
necessary for the success of the highly integrated service layout in the
building system.
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