Drawing

Order number of pieces required, in multiples of Standard Package Quantity.
K.14
Cable/ConduitBeam/PurlinHangers/Hanging
Systems
Stud WallCommunication/
Low Voltage
Dry WallAcousticalMiscellaneousIndex
Sizing Information
Reference
Codes & Standards
Reference
BICSI TDMM, 12th Edition; 2009 Revision
Page 5-1: Introduction
Horizontal pathways include:
• Continuous pathways (e.g., conduit cable tray and
cable matting) used for containment of telecommunications
cabling
• Non-continuous pathways (e.g., the space between
open-top cable supports [J-hooks]) through which cable is
placed between physical support or containment components
Pages 5-39-5-41: Pathway and Cable Support
Every ceiling distribution system must provide proper support for
cables from the telecommunications space to the work areas served.
Ceiling panels, support channels (T-bars), and suspended ceiling
support wires are not proper cabling supports.
Ceiling conduits, raceways, cable trays, and cabling must be
suspended from or attached to the structural ceiling or walls with
hardware or other installation aids speci cally designed to support
their weight.
The pathways must:
• Have adequate support to withstand cable pulling
• Be installed with at least 75mm (3 in.) of clear vertical space
above the ceiling tiles and support channels (T-bars) to ensure
accessibility
Horizontal pathways or cable should not rest directly on or be
supported by:
• Ceiling panels
• Support channels (T-bars)
• Ceiling support wires
• Other components of the suspended ceiling
It is important to provide suf cient space between the suspended
ceiling structure and the telecommunications pathways/cables
to install, maneuver, and store ceiling tiles during service. When
suf cient space is available above the pathway, up to 150mm (6 in.)
should be provided between the suspended ceiling and the cabling
pathways.
Where building codes permit telecommunications cable to be placed
in suspended ceiling spaces without conduit, ceiling zone distribution
pathways may consist of:
• Cable trays
• Open-top supports (e.g., J-hooks)
NOTE: J-hooks should be located 1.5m (5 ft.) apart at the maximum
to adequately support and distribute the cable’s weight. The
manufacturer’s speci cations for cable loading should be followed.