June 99
B.
Provide a single control panel with annunciator from
each motion detector.
C. Install all wiring in conduits (minimum 19 mm (3/4")).
Provide conduit and wiring from control panel to the
main telephone closet and make provisions for tie-in to
a local alarm monitoring company.
13.
ALTERATIONS TO EXISTING BUILDINGS:
13.1
Application:
A.
This article applies to the design of projects involving
the construction of alterations to existing buildings, and
secondary distribution upgrading.
13.2
Calculations:
A.
Submit calculations indicating complete load analysis
of the areas involved in the alterations and the
pertinent impact on existing building transformer and
feeders.
B.
Calculations shall indicate a breakdown of lighting and
power, connected loads, demands and other factors
used by the designer to determine equipment ratings.
13.3
Drawings: For alteration projects, separate demolition
drawings might be helpful for areas involved. Specific
detailing of interfaces between alterations and existing to
remain shall be clearly indicated on the drawings.
13.4
Modification verses Replacement:
A.
Where equipment must be modified in order to be
physically utilized in a project, evaluate the following
questions:
1.
Can the Government look to one manufacturer for
final responsibility of the modified equipment?
2.
Is there a legitimate cost savings by modifying the
existing equipment rather than installing new? If
both answers are yes, then modification should
be considered.
13.5
Age and Physical Condition:
VA Design Guide -- National Cemetery Administration
Page 5 -43
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