Technical Requirements -
Computer Room
Ultimate impact load
100 lbs.
The floor panels shall consist of a high density particle board (wood) core for sound
absorption, increased yield strength and stability, and shall have a high pressure
laminate surface with integral, perimeter edging. The floor panel size shall be 24
inches square. An additional 20% spare tiles of each variety of cutout and vent tiles,
as a minimum, should be provided to replace damaged tiles and to be used for
future equipment. Factory supplied, perforated panels and cutout panels shall be
provided (approximately one perforated panel is required per ton of air
conditioning). Provide self-extinguishing foam rubber to fit cutouts. Installation of
the raised floor shall be in accordance with manufacturer's recommendations and
VBA specifications.
The raised floor shall include at least one main entry ramp from a corridor (unless
installed on the ground floor with a depressed slab). The ramp shall be a minimum
of 4'-0" wide (6'-0" wide at Sector Sites) and have door of the same width as the
ramp (should be a double-door design for a 6' wide ramp). The ramp shall meet
applicable handicapped accessibility standards. The ramp shall have a maximum
slope of 1:12 and will have a 5'-0" x 5'0" clear landing at the bottom of the ramp (7'-
0" wide x 6'-0" deep for Sector Site.) The door shall be an out-swing door and of
the automatic variety to facilitate equipment, paper and cart access. The ramp shall
be covered with a non-skid surface of rubber, raised circular disc pattern or equal
and shall have minimum 850 pounds per square inch (psi) rolling load limit
designed to withstand high sheer stress. Exits to corridors shall be of the out-swing
variety, utilize a landing and step access to the raised floor.
Prior to installation of the raised floor, contractor will clean thoroughly and seal the
underfloor with an approved sealant to reduce dust that may adversely affect the
ADP equipment and safety devices. On new construction, a depressed concrete
slab should be installed on the ground floor to accommodate the computer room
raised floor. Cable sleeves and conduit shall be installed to allow for current and
anticipated cable, monitoring, alarm systems, and power access to the computer
room. Additional sleeves should be installed on initial construction to allow for future
growth and expansion of capabilities. All sleeves shall be fire-stopped with
reusable, pliable material.
A "Zero Reference Signal Ground Grid" (ZSRG or SRG) shall be installed that
serves to reduce or eliminate high frequency electrical noise which results from
megahertz digital switching speeds or radio frequency interference and also serves
to ensure that all equipment in the computer room including the UPS and PDU are
Page 4-4
VBA Design Guide
Previous Page
