750
Cost and Time Analysis: First Cost
Labor costs will rise because of the capped tees introduced for future
modifications. Branch distribution costs will also be greater as the
plumbing will not necessarily follow the shortest possible routes to its
destination because of the sub-zoning organization. No attempt has been
made to assess the savings that could result from reduced installation
time made possible by the service zone organization, including some
degree of prefabrication.
The low figure represents a plumbing system in a hospital of simple
configuration with a small proportion of special plumbing requirements.
The high figure indicates the possible cost in a complex building with a
large proportion of functional areas with special plumbing requirements,
plus the use of sprinklers for fire protection throughout the entire hospital.
A typical breakdown would be:
General piping:
1.50
Medical gases:
.50
Fire protection:
.30
Equipment:
.04
Total:
.34/OGSF
The effect of total sprinklering is to add about
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.50/OGSF. It isconsidered that the use of standardized pre-plumbed items such as
service consoles and service walls would not seriously change the cost
target figures. The first cost of these units is higher than standard fixtures,
but installation costs are substantially less.
751.2.6
Electrical Power Distribution
The target cost range for electrical power distribution is between .00
and .50/OGSF. Comparison with the Memphis and Miami estimates,
.08 and .13 respectively, indicate a systems cost about equal to
conventional design and construction.
Busducts, which are to be used extensively for the horizontal and vertical
feeders, cost more than the comparable conduits and cables used in
conventional construction, but installation costs should offset the increase.
This will remain true even when installed busducts are sized for future
predicted loads.
There will be a slight increase in cost through the use of wireways in the
service zone horizontal distribution.
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