Technical Requirements -
Telephone/Data Spaces & Cable Pathways
finished walls - color to match wall color. Conduit shall be used for unfinished
storage areas, equipment spaces and the like.
12. Four-inch conduits/ducts within buildings shall be provided with a pull box after
90 degree bends with the exception of termination points.
13. Four-inch conduits/ducts outside buildings shall not exceed 400 feet between
maintenance holes or handholes.
14. Pull boxes shall be sized as required by the NEC.
15. Conduit is not required for all workstation wall outlets, however, for ease of cable
installation, conduit shall be installed if a cable cannot be fished vertically to the
outlet box from the interstitial ceiling space. Contractor shall determine this from
furniture/outlet drawings. If conduit is not installed, rough edges on drilled
access holes on horizontal and vertical joists shall be deburred and grommeted
for cable protection. Contractor shall drill access holes for cable in any event -
minimum " grommeted.
16. Outlet boxes shall be installed at each wall outlet location with a minimum of a
pull string to the interstitial ceiling space for cable installation.
between telephone/data cabling and sources of electromagnetic interference,
should provide clearances of at least:
4 feet from motors or transformers,
1 foot from electrical power distribution,
5 inches from fluorescent lighting,
Pathways should cross perpendicular to fluorescent lighting and electrical
power cables or conduits whenever practical.
Note: If these clearances cannot be maintained, conduit or enclosed wireways /
cable trays with hinged access shall be provided in affected areas.
accordance with ANSI/TIA/EIA-607 requirements and safety ground in
accordance with the NEC.
VBA Design Guide
Page 4-17
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