Telecommunications Design 16
C. Continuous Pathway: Conduit
- Conduit pathway sizing shall be based on 40% conduit fill. This shall not be exceeded.
- A single continuous conduit run shall not exceed 100 feet without being provided a pull point or pull
box.
- There shall be no single conduit bend that is greater than 90 degrees or an aggregate of bends
greater than 180 degrees between pull boxes/pull points.
- See the table below for work area outlet conduit sizing and cable quantity requirements:
Conduit Size
(diameter)
Max # of
Category 6
Cables
1” 7
1.25” 12
Table based on .23” O.D. cable and a single 90 degree bend
- Any penetration of conduit through rated walls shall require the use of fire stopping material. This
shall be accommodated in order to continue the rating of the wall.
- In areas that a poke-thru device or floor box is being utilized to serve power and data, provide a
minimum of one (1) 1” conduit from the floor device to the above ceiling space. This may require
finding a common wall or chase for the conduit to traverse above ceiling.
D. Non-Continuous Pathway: J-Hook
- J-hooks may be utilized for small quantities of cabling in an above accessible ceiling space.
- Category cabling shall be supported with a j-hook every 3 – 5 feet with no cabling resting on any
ceiling tiles. Refer to manufacturer’s recommended requirements for j-hook placement to avoid
reflections in the cable’s performance.
- Provide a minimum of 3” of clearances above ceiling tile and support channels (T-bar).
- System Design: Backbone Pathway Requirements
Depending upon location of the renovation and/or new construction specific pathway requirements shall be met
in order to allow for dedicated and potentially redundant paths for University of Iowa fiber optic infrastructure.
Additionally, pathways will also be required for local television and backup internet service providers. Coordinate
these needs on a per project basis. Use the below table as a loose guideline:
Location Pathway Type Pathway Size Location
Campus Location Renovation
(Intrabuilding Infrastructure)
EZ-Path Fire Rated Sleeve 4” Telecom Rooms and
Corridors
New Clinic or Off Site Facility HDPE Conduit 4” Extended to nearest
ITS and/or service
provider hand hole
November 1, 2016
