Specifications

Status: Released
Version:2.2
Document: ITS-AVS Audio Visual Standards
V2.2Issued.docx
Author: Dean McFadden
Save Date: 25/08/2014
Page 21 of 63
2.10.10 Cable separation
AC power cable and feeder cable for hearing augmentation loops shall be separated from all other cables
according to standards and to manufacturers’ specification.
High level signal cables, low level signal, RF and control caballing shall be separated where possible. Minimum
separation between AV cabling and other services must not be less than 150mm. Separation between AV
cabling and electrical services must be minimum 300mm and only cross at right angles.
Cable runs must be parallel or at right angles to the building line.
2.10.11 Cable Support – Catenary
Where required, catenary wires must be installed for supporting cabling, and must be of adequate strength to
carry the cables attached to them. Method and intervals of fixing of cabling to catenary wire must comply with
the manufactures installation documentation.
Catenary wires must be securely anchored to the floor slab of the floor above or wall. The maximum sag of any
span of a maximum 7-metre length of each catenary wire must not exceed 100mm.
Catenary wires are not to be used in exposed ceilings.
2.10.12 Cable Support - Tray
Generally in a new building or fit out Audio visual cabling will have allowances made by the electrical contractor
for space allowance on the Communications Cable Tray to reduce services space in the ceiling.
2.10.13 Cable support Conduits/Ducting
Where cables leave a tray or a catenary in a situation where they are exposed the cables shall be enclosed in
conduit or duct (i.e. Aussie duct or equivalent). In either case the conduit/duct shall have the nominated space
spare set forward in the relevant Australian standards. The cables must exit the conduit/duct through a cable
gland or pass through, open ended conduit or ducting is not acceptable.
2.10.14 Looming/lacing
Dress all cables within the equipment rack in neat looms and parallel runs using approved cable restraints and
support bars. Leave sufficient length on all cables to allow removal of any item of equipment from the rack for a
distance equal to the equipment depth + 50% without disconnecting any cables.
Cable bundles shall not obstruct installation or removal of equipment in the racks. Cover all cables entering and
exiting the equipment rack with appropriately sized Techflex or equivalent black expandable braid cable sock.
Cut expandable braid with a hot knife or otherwise treat sleeve ends to prevent fraying.
Cable ties are to be installed with a suitable tensioning tool and the AV Integrator is to ensure that no sharp
edges remain when the ‘tail” is trimmed and it is flush with the locking block.
Cable ties are not to be used on CATx or coaxial cables. Velcro ties must be used to ensure that the cable is
not distorted during installation.
2.10.15 AV and Communications racks
All AV equipment shall be housed separately from IT communications equipment and must not reside in the
same cupboard or rack.