Specifications

SECURITY CAMERA SYSTEM UPGRADE AND REPLACEMENT
FOR MONTGOMERY COUNTY DETENTION CENTER
SECURITY CAMERA SYSTEM 17000-16
cost to the Owner. "Conveniently accessible" is defined as being capable
of being reached without the use of ladders, or without climbing or
crawling under or over obstacles such as motors, pumps, belt guards,
transformers, piping, and duct work.
Y. Work Performance:
1. Coordinate location of equipment and conduit with other trades to
minimize interferences.
2. Holes through concrete and masonry in new and existing structures shall
be cut with a diamond core drill or concrete saw. Pneumatic hammer,
impact electric, hand or manual hammer type drills shall not be allowed,
except where permitted by the Engineer as required by limited working
space.
3. Holes shall be located so as not to affect structural sections such as ribs
or beams.
4. Holes shall be laid out in advance. The Engineer shall be advised prior
to drilling through structural sections, for determination of proper layout.
5. Structural Penetrations: Where conduits, wireways, and other raceways
pass through fire partitions, fire walls or walls and floors, install a
firestop that provides an effective barrier against the spread of fire, smoke
and gases. Fire-stop material shall be packed tight, and completely fill
clearances between raceways and openings. Fire-stop material shall
conform to the following:
a. Fire-stopping material shall maintain its dimension and integrity
while preventing the passage of flame, smoke and gases under
conditions of installation and use when exposed to the ASTM
E119 time-temperature curve for a time period equivalent to the
rating of the assembly penetrated. Cotton waste shall not ignite
when placed in contact with the non-fire side during the test. Fire-
stopping material shall be noncombustible as defined by ASTM
E136; and in addition for insulation materials, melt point shall be
a minimum of 1700 degrees F for 1-hour protection and 1850
degrees F for 2-hour protection. Refer to architectural drawings for
fire ratings of walls.
b. Floor, exterior wall and roof seals shall be watertight. Walls and
floors which are cored for installation of conduit shall be sleeved
with steel tubing, grouted and the space between the conduit and
sleeve filled as specified herein.
c. Tubing shall extend one inch minimum above finished floor.