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bar 1”C, from the communications room backboard to the building AC electrical
service ground. Grounding bus shall be 2”x18” for MDF rooms and 2”x12” for IDF
rooms. Meet or exceed NEC code requirements. Ground all cable trays per latest
NEC.
p. Specify 1-20 amp, 1-30 amp, twist-lock outlet (NEMA L5-20, L5-30P), for each
voice, data and server rack. Consult with APS for specific outlet location and
applicable rack quantities.
q. Specify 1-20 amp Twist-lock outlet (NEMA L5-20R), for CenturyLink, TW
Telcom.
r. Install a 4 inch conduit or ladder type cable tray from the telecom backboard to
above data cabinets for power cables.
s. Provide ladder tray around perimeter of room for special systems cabling.
3.
INTERMEDIATE COMMUNICATIONS ROOMS
Design and specify one Intermediate communications room to facilitate each classroom
wing and separate building. Multi-level buildings shall have one IDF Room per floor,
preferably stacked. Adhere to same guideline specifications as “Main Communications
Room”, with the exception of the following:
a. Minimum IDF / TR Room Size – 10’x12’ with 9’ Ceiling
b. Exhaust fan only – separate refrigeration not required
c. Specify 1-20 amp, 1-30 amp, twist-lock outlet (NEMA L5-20, L5-30P), for each
voice, data and server rack. Consult with APS for specific outlet location and
applicable rack quantities.
4.
CABLING PATHWAYS
Specify applicable sleeves, cable trays, stub-up conduits, homerun conduits and aerial
pathways, associated with the following:
a. Communications Rooms – Specify applicable two 4”C and two 2”C between main
communications room and Intermediate communications rooms; Bushings required
at each end.
b. Corridors / Hallways – Specify 18” Cablofil basket tray, cable tray series (NO
EXCEPTIONS). See Cablofil detail. All cable trays shall be grounded as per N.E.C.
c. Sleeves – Specify applicable two - 2” metallic conduit sleeves at each classroom,
office, gym, multi-purpose room, kitchen, similar spaces, or any room having a data
outlet. Sleeves shall have enough length to be in an accessible ceiling space at
both ends, and located to provide a pathway to the nearest cable-trays. Bushings
required at each end. Consult with APS for all sleeve requirements and locations
not already identified above.
d. Communications Outlets - Specify one 4
11
/
16
square deep box with a single-
gang mud ring and a minimum 1” C, stub-up or homerun conduit per outlet.
e. Surface Raceways – Specify Wiremold, ivory dual-channel 5400 series, (NO
EXCEPTIONS).
f. Floor Boxes – Minimum 1.25”C; Wiremold Resources series, RFB2 or RFB4 –
power/data/video. Floor Box Cover: Wiremold Floorport series – S38CCTCxx; (NO
EXCEPTIONS). Floor boxes to be used only if ABSOLUTELY NECESSARY (See
Receptacles and Power Section).
g. Stub up conduits – minimum 1” C; Bushings required at stub-end.
h. Aerial Pathways and Riser Racks – Specify 2” rigid conduit for building masts, 30’
lengths for utility poles and design riser racks applicable to APS standards. (See
Pole Requirements in portables section)
i. Design conduits for future extension with permanent marking on conduits installed