BIM-MEPAUS SPECIFICATION Electrical Cable Containment
Issued By: BIM-MEPAUS
30 Cromwell Street, Burwood 3205 VIC Australia
Revision: REV B
Date July 2017
BIM-MEPAUS Specification
Cable Containment
BIM-MEPAUS
July 2017
Acknowledgements
BIM-MEPAUS greatly acknowledges the contributions of the following organisations to this specification
• PowerCad
• NDY
• WSP
• Lucid
• Nilsen
• A.G. Coombs
• A2K Technologies
• Stowe
• Unistrut / Atkore
• Ezystrut / Korvest
Formatting conventions
The following table provides the text formats used in BIM-MEPAUS documentation and their application.
Text Type Example Indicates
Italicised text BIM Execution Plan The generic title for a type of document
Bold italicized text BIM-MEPAUS specification The name of a referenced document
Red bold text LOD First reference to a term or abbreviation that is
defined in the website glossary under Practices
Blue text www.bimmepaus.com.au Hyperlink / web link
Blue italicised text Explanatory notes Explanatory notes or reference information
Green bold text Future development Sections or documents that are still under
development by BIM-MEPAUS.
Keeping BIM-MEPAUS up-to-date
BIM-MEPAUS specifications, templates and content are updated to reflect changes in legislation, technology and
industry practice. Feedback and suggestions are welcome and can be made via the BIM-MEPAUS website. Updates
are managed and delivered through the BIM-MEPAUS website.
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BIM-MEPAUS makes no warranty, expressed or implied, including but not limited to any implied warranties of
merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy,
completeness, or usefulness of the information in this document.
In no event shall BIM-MEPAUS or its agents be liable for damages or losses resulting from your use of, or reliance
on the information provided in this document.
COPYRIGHT © BIM-MEPAUS All rights reserved.
BIM-MEPAUS Specification
Cable Containment
BIM-MEPAUS
July 2017
Table of Contents
1 INTRODUCTION .............................................................................................................. 4
1.1 Scope ........................................................................................................................................................ 4
1.2 BIM-MEPAUS reference documents ............................................................................................................ 4
1.3 Objectives .................................................................................................................................................. 4
1.4 BIM-MEPAUS Schema ................................................................................................................................ 4
2 APPLICABLE STANDARDS ............................................................................................ 5
3 MODELS .......................................................................................................................... 6
3.1 Model workflow .......................................................................................................................................... 6
3.2 Cable containment systems, services and specifications .......................................................................... 6
3.3 System schematics and Services co-ordination plan ................................................................................. 6
3.4 Manufacturer certified models ................................................................................................................... 7
3.5 As-built model ............................................................................................................................................ 7
4 SHARED PARAMETER SCHEDULING ........................................................................... 8
5 CABLE CONTAINMENT SPECIFICATION ...................................................................... 9
5.1 Cable containment selection ..................................................................................................................... 9
5.2 Cable containment load capacity and Deflection ....................................................................................... 9
5.2 Material selection and Finishes ................................................................................................................. 9
5.3 NEMA standard ....................................................................................................................................... 10
5.4 Splicing and Grounding ........................................................................................................................... 10
5.5 Ladder and tray covers ............................................................................................................................ 10
5.6 Clearance zones...................................................................................................................................... 10
5.1 Hangers and supports ............................................................................................................................. 10
6 CABLE CONTAINMENT SERVICES ..............................................................................11
7 CABLE CONTAINMENT SYSTEMS ...............................................................................12
7.1 BIM-MEPAUS System Family: Cable Basket............................................................................................. 12
7.2 BIM-MEPAUS System Family - Fire Rated Cable Basket .......................................................................... 13
7.3 BIM-MEPAUS System Family - Cable Tray ............................................................................................... 14
7.4 BIM-MEPAUS System Family – Fire Rated Cable Tray ............................................................................. 15
7.5 BIM-MEPAUS System Family – Cable Ladder .......................................................................................... 16
7.6 BIM-MEPAUS System Family – Fibre Reinforced Plastic Cable Ladder ................................................... 17
7.7 BIM-MEPAUS System Family – Fire Rated Cable Ladder ......................................................................... 18
8 REVIT FUNCTIONALITY ................................................................................................19
8.1 Category classification ............................................................................................................................. 19
8.2 Family naming syntax .............................................................................................................................. 19
8.3 BIM classification schedule ..................................................................................................................... 19
8.4 Clearance and access zones .................................................................................................................. 20
9 PARAMETER SCHEDULES ...........................................................................................21
9.1 Identity schedule...................................................................................................................................... 21
9.2 BIM classification schedule ..................................................................................................................... 22
9.3 System analysis schedule ....................................................................................................................... 22
BIM-MEPAUS Specification
Cable Containment
BIM-MEPAUS
July 2017
9.4 Green building properties schedule ......................................................................................................... 22
9.5 Performance/Quality schedule ................................................................................................................ 23
9.6 Manufacturer schedule ............................................................................................................................ 24
9.7 Commissioning schedule ......................................................................................................................... 24
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1 INTRODUCTION
1.1 Scope
This document sets out the BIM-MEPAUS specification for the following system families:
• Cable Basket
• Cable Basket (Fire Rated)
• Cable Tray
• Cable Tray (Fire Rated)
• Cable Ladder
• Cable Ladder (FRP)
• Cable Ladder (Fire Rated)
1.2 BIM-MEPAUS reference documents
This specification should be read in conjunction with the following specifications and documents:
• BIM-MEPAUS Electrical Power systems, plant and equipment schedule – this Excel based schedule
provides the complete listing of electrical systems, plant and equipment names as well as the system
colour schema.
• BIM-MEPAUS cable containment product data template – this Excel based schedule details the BIM-
MEPAUS Industry Foundation Model and generic design families provided by BIM-MEPAUS including the
catalogue of size types provided for design purposes. The workbook also provides the complete schedule
of shared parameters and the product data templates for designers and product manufacturers.
• BIM-MEPAUS Master shared parameter schedule – this document provides the reference source for all
shared parameter names used within BIM-MEPAUS Generic Design and Manufacturer Certified Model
(MCM) content models together with the Revit MEP classification of each parameter and its associated
BIM-MEPAUS GUID.
• BIM-MEPAUS Plant, equipment and fitting scheduling specification – this document details the
technical and workflow requirements in relation to shared parameter scheduling.
These documents can be accessed through the BIM-MEPAUS website.
1.3 Objectives
Benefits sought through the development and implementation of this BIM-MEPAUS specification include:
• A structured approach to the specification and modelling of Cable Containment;
• Reliable and accurate Design to Commissioned As-built workflows; and
• Industry standardization delivering improved supply chain efficiency and reduced project costs and risks
to the client and project team.
1.4 BIM-MEPAUS Schema
The BIM-MEPAUS plant, equipment and fitting schema is used to determine the component life cycle modelling
requirements. Cable containment systems are classified as fittings to allow suitable creation of procurement
schedules.
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2 APPLICABLE STANDARDS
There are a number of requirements in the National Construction Code as well as relevant Australian and
international standards that relate to cable containment design and selection.
Codes and standards referenced in this specification include:
General Requirements
NCC / BCA : National Construction Code / Building Code of Australia
AS / NZS 3000-2016 : Electrical installations (known as the Australian/New Zealand Wiring
Rules)
AS / NZS 3008.1.1-2009 : Electrical installations - Selection of cables. Cables for alternating
voltages up to and including 0.6/1 kV - Typical Australian installation conditions
IEC61537-2006 : Cable management - Cable tray systems and cable ladder systems
AS / NZS 4296-1995 : Cable trunking systems
NEMA VE1 2009 : Metal cable tray systems (NEMA 12A / 16A / 20B / N20C)
NEMA VE2 2013 : Cable Tray Installation Guidelines
AS /NZS 1170.4-2007 : Structural design actions Part 4: Earthquake actions in Australia
AS / NZS 4600-2005 : Cold formed steel structures
AS / NZS 4100-1998 (R2016) : Steel structures
AS / NZS 1365-1996 (2016) : Tolerances for flat rolled steel products
AS / NZS 1594-2002 (R2016) : Hot rolled steel products
AS/NZS 1866-1997 : Aluminium and aluminium alloys— Extruded rod, bar, solid and hollow
shapes
AS / NZS 1734 : Aluminium and aluminium alloys—Flat sheet, coiled sheet and plate
AS / NZS 1449-1994 : Wrought alloy steels - Stainless and heat-resisting steel plate, sheet
and strip
AS / NZS 2837-1986 : Wrought alloy steels - Stainless steel bars and semi-finished products
AS / NZS 4680-2006 : Hot-dip galvanized (zinc) coatings on fabricated ferrous articles
ISO 1461:2009 : Hot dip galvanized coatings on fabricated iron and steel
AS / NZS 1214-2016 : Hot-dip galvanized coatings on threaded fasteners (ISO metric coarse
thread series) (ISO 10684:2004, MOD)
AS / NZS 1397-2011 : Continuous hot-dip metallic coated steel sheet and strip - Coatings of
zinc and zinc alloyed with aluminium and magnesium
AS / NZS 1789-2003 : Electroplated zinc (electrogalvanized) coatings on ferrous articles
AS / NZS 1897-2016 : Fasteners - Electroplated coatings
Installation Requirements
AS / NZS 3013-2005 : Electrical installations - Classification of the fire and mechanical
performance of wiring system elements
AS / NZS 3084-2003 : Telecommunications installations— Telecommunications pathways
and spaces for commercial buildings (ISO/IEC 18010:2002, MOD)
AS / ACIF S009-2006 : Installation requirements for customer cabling
AS / NZS 3015-2004 : Electrical installations — Extra-low voltage d.c. power supplies and
service earthing within public telecommunications networks
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Cable Containment
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3 MODELS
3.1 Model workflow
One of the principle aims of BIM-MEPAUS is to enable efficient Design to Commission As-Built BIM workflows
that see the design model progressively developed through the design, virtual build and construction process to
ultimately deliver a completed As-built Model to the client.
A key step in this process of the virtual build occurs during the change-out of the generic design system families
with Manufacturer’s Certified Model (MCM) system families. These MCMs support a range of construction and
commissioning workflows as well as the asset’s life cycle management post-handover where appropriate.
The completed construction model generated through the virtual build is then used to drive a range of activities
including site layout, procurement and installation scheduling and tracking.
Once the installation is completed and the systems commissioned, as-built data and project completion information
are used to finalise the Commissioned-As Built Model for handover to the client.
3.2 Cable containment systems, services and specifications
A key feature of the BIM-MEPAUS approach to cable containment modelling is the use of pre-defined Revit cable
containment systems and defined BIM-MEPAUS cable containment services and types to define requirements /
specifications. This approach to modelling is important if the full potential of constructible Revit MEP modelling
workflows are to be leveraged by designers and constructors.
In BIM-MEPAUS the system type and service must be selected to model the required system and nominate the
specifications. The use of this modelling approach provides significant benefits for BIM based system design
together with downstream engineering validation, coordination, pricing and scheduling take-offs.
3.3 System schematics and Services co-ordination plan
Prior to cable containment modelling commencing, the electrical services engineering requirements are defined
with the development of a 2D electrical system schematic, which is key to conveying the design intent and the
starting point for modelling of the cable containment layouts. The 2D electrical system schematic design intent is
interpreted and adopted within the Revit project model to ensure regulatory, spatial, performance and quality
requirements are met.
A services coordination plan should be included in all services packages and form a key deliverable of the
schematic design phase independent of any LOD definition deliverable to understand the various service zones
and avoid clashes.
The BIM-MEPAUS Template Add-In is not intended to generate the schematic from the design model and it is
envisaged that schematics will continue to be prepared independently of the BIM-MEPAUS Template Add-In.
Note:
PowerCad – M software can be used to generate a detailed 2D electrical system schematic within Revit.
PowerCad – 5 software allows calculation of cable size, arc fault, complete maximum demand calculations,
harmonic analysis and more.
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3.4 Manufacturer certified models
The virtual build of the design model to create the LOD 400 construction model delivers a model that is fully
designated in terms of system type, service and specifications.
The virtual build typically involves a number of tasks:
• Changing-out of the BIM-MEPAUS generic design system family content with manufacturer’s certified
content
• Value Engineering to optimise and achieve the most cost effective service and layout within specification
• Checking costs against original estimates and/or budget
• Final services coordination and routing
• Piece marking
Manufacturer’s models are preferably generated from the BIM-MEPAUS Industry Foundation Models (IFM) or BIM-
MEPAUS generic design system families and provide accurate geometry needed for the virtual build plus the
manufacturer data for the specific cable containment fittings to be supplied to the project site.
BIM-MEPAUS certified manufacturer system models are interchangeable with the generic design system families
and provide:
• Accurate geometry
• Performance and Quality data
• Full BIM-MEPAUS Revit operability.
Where the data is not able to be provided by the manufacturer in Revit shared parameter format, manufacturer data
should be delivered in Excel format using the BIM-MEPAUS Product Data Templates to allow the data to be efficiently
imported by the specialist trade contractor into their scheduling database or Revit virtual build model.
Microsoft Excel based product data templates are provided for this purpose on the BIM-MEPAUS website under the
specification product templates section. Where required additional fields can be drawn from the shared parameter
schedules in this specification to provide additional product data as required.
As the MCM and supporting shared parameter schedule replaces the certified drawings and technical schedules
that have traditionally been provided by manufacturers, the model accuracy should be no less than that provided
by a manufacturer’s certified drawing.
3.5 As-built model
Once the installation is completed any site changes can be used to finalise the As Built model for provision to the
client.
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4 SHARED PARAMETER SCHEDULING
The shared parameter schema has been developed to effectively support data requirements for design,
procurement and commissioning as well as life cycle asset management. All BIM-MEPAUS plant and equipment
models have the same schedule structure shown below.
• Identity
• BIM Classification
• System Analysis
• Green Building Properties
• Performance / Quality
• Manufacturer
• Commissioning
• Completion
System Analysis, Green Building Properties and Commissioning schedules are only included where applicable or
where they have been defined by a relevant standard.
The schedules are progressively completed as the MEP services model progresses through design and virtual
construction to a fully completed Commissioned As-built component within the final model.
Schedule Section Generic Design / MCM
Model schedule
Schedule completion by
Identity Generic design model Designer / Manufacturer / Installer
BIM Classification Generic design model Designer
System Analysis Generic design model Designer
Green Building Properties Generic design model / MCM model Designer / Installer / Manufacturer
Performance /Quality Generic design model / MCM model Designer / Installer
Manufacturer MCM model Manufacturer
Commissioning MCM model Installer
Completion Schedule MCM model Installer
The identity schedule must be completed for all components and once the values are defined are fixed for the life
of the component.
It is not expected that all data will be carried in the Revit model with non-core data likely to be managed off model
using scheduling databases and/or spreadsheets. This non-core data is commonly required for the finalization of
procurement, commissioning and facility management purposes.
Manufacturer BIM data must be supplied in a format that can be imported into a data management system and/or
Revit based Virtual Construction model with suitable formats including:
• MCM model incorporating BIM-MEPAUS Product Data Template shared parameters
• MCM geometry model with supporting BIM-MEPAUS Product Data Template Excel file.
To allow efficient and reliable data exchanges, it is critical that the BIM-MEPAUS shared parameter names and
respective GUIDs be used.
Parameters indicated in bold font are core Revit model data expected to reside in the model whilst those in italics
are non-core data that can be managed either in the Revit MEP model or off model in a scheduling database.
Parameters notated with the symbol have an industry defined set of allowable values or descriptions that are
listed in the master BIM-MEPAUS shared parameter schedule.
It is noted that BIM-MEPAUS compliant manufacturer’s certified models can be used for the basis of design where deemed appropriate by the designer and/or where specific manufacturer plant and equipment is to be nominated.
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5 CABLE CONTAINMENT SPECIFICATION
The following guidance has been developed through the industry consultation process as particular areas requiring
focus during the completion of the cable containment quality/performance schedules.
5.1 Cable containment selection
As a general guideline, to design and choose the correct cable containment system, consideration must be given
to the required load and cable containment deflection, level of corrosion resistance, span and height to width ratio.
5.2 Cable containment load capacity and Deflection
Loads for cable tray beams are rated Kg/m over specific spans in accordance with the relevant Australian and
NEMA standards. Ladders with higher load capabilities normally also have deeper cabling depths. Because the
cable density remains fairly constant in a total installation, the widest ladders carry the most load, and each smaller
width carries proportionately less load. However, the load carrying capacity of any class of ladder is independent of
the width.
For fixed ladder spans it is commonly found that the building structure supporting the cable ladders will dictate the
span, but it is still possible to exercise some choice. Where the cabling is heaviest, and this is not usually extensive,
it is possible to use two 300mm wide ladders side by side instead of one 600mm wide, in order to select a lighter
category of ladder for the total project. However, it is often inconvenient to use more than one ladder category in
the same installation. Where the structure does not dictate the ladder span, the heaviest cable runs could be
supported more frequently, again enabling a lighter category of ladder to be chosen.
Cable ladders are essentially structural members designed to strength requirements only and are required to
support pliable load elements. Therefore, the control of deflection is not necessary for durability or stability reasons
and can normally be justified on purely aesthetic grounds. Electrical contractors typically decide the application in
considering load capacity and deflection characteristics.
5.2 Material selection and Finishes
Material choice is directly related to service life, where requirements for longer service life lead to more expensive
materials. The cost of these materials also must be considered as an equation of initial investment versus
maintenance costs and eventual replacement. The following two tables present a typical selection of materials and
finishes as used within cable containment system types and services.
Material Types
Mild Steel
Aluminium
Stainless Steel 304
Stainless Steel 316
Fibre Reinforced Plastic
Finishes
Plain
Pre-galvanised steel
Powder coated
Hot dipped galvanised
Zinc electro-plated
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5.3 NEMA standard
NEMA standard VE 1 and VE 2 are published by the National Electrical Manufacturers Association in the U.S.A. The Standards provide for the technical requirements of construction, performance and testing (VE 1) and address shipping, handling, storing, and installing (VE 2) of cable containment systems. There are presently no Australian Standards governing cable support systems. NEMA VE 1 and VE 2 are the most widely accepted standards for cable containment supports in Australia.
5.4 Splicing and Grounding
Electrical resistance across splice joints must be less than the 330 micro-ohms’ limit specified by NEMA Standard VE 1. To attain maximum working load of the system, the following recommendations should be adopted.
• Do not splice single spans of ladder. • Avoid splice joints in the vicinity of the end supports on continuous runs. • Avoid splice joints directly over intermediate supports on continuous runs. • Locate splice joints at the quarter span point between supports on continuous runs.
It is recommended that a separate ground wire is used for equipment grounding. Any non-conductive coating on the surface must be removed by the contractor / end-user to maintain electrical continuity. Grounding of fittings requires special attention. Typically, fittings are fabricated in the field by cutting straight sections, thus altering the cross-sectional area of the tray. A bonding jumper, and or a splice, along with the appropriate hardware must be used on either side of the fitting to ensure electrical continuity.
5.5 Ladder and tray covers
Covers are normally specified where protection is required to safeguard against damage to cable and insulation from falling objects—dropped tools, sparks or solid materials. Covers protect cable insulation and fixings (plastic ties etc.) from harmful effects of ultra-violet light or weathering deterioration. In areas where high levels of airborne particles are present, covers prevent accumulation of dust or other debris on cables, which may cause heat buildup, fire hazards or absorb moisture, which may shorten life of installation. Consideration must also be given to how heat is dissipated as a result of fitted tray covers.
5.6 Clearance zones
Industry standard clearance zones have been agreed and defined to avoid clashes with other objects during the
design process and allow for maintenance access. Each of the clearance zones on the cable containment system
families can be adjusted from the default position. Refer to section 8.3 for further detail regarding clearance and
access zones. The following table defines the clearance zone default heights for guidance:
Clearance (mm) Area
300 Top
100 RHS
100 LHS
100 Bottom
5.1 Hangers and supports
Hangers and supports for cable containment support systems should provide strength and working load capabilities
sufficient to meet the load requirement of the cable containment wiring system. Consideration should be given to
loads associated with future cable additions or any other additional loads applied to the cable containment support
system. Section 3 of NEMA VE 2 provides additional detailed information regarding hangers and supports for cable
containment.
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6 CABLE CONTAINMENT SERVICES
There are five electrical services defined for the cable containment systems, that are typically modelled by the design consultant. These consist of the following:
Designation System Service Colour Colour Name RGB Code
E Power Light Blue 0, 176, 240
C Communication Green 0, 176, 80
S Security Orange 255, 192, 0
B BMS Pink 234, 122, 213
F Fire Red 255, 0, 0
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7 CABLE CONTAINMENT SYSTEMS
The following tables show the standard pre-set BIM-MEPAUS parameters to be used to create a standard set of BIM-
MEPAUS cable containment system families.
7.1 BIM-MEPAUS System Family: Cable Basket
Parameter Unit Value
Wall Height mm 60
Cable lay Depth mm 50
Material Type Text Steel
Text Stainless steel 304
Text Stainless steel 316
Finish Text Plain
Text Hot dipped galvanised
Text Powder coated
Text Pre-galvanised
Text Zinc plated
Cable load rating limit guide Text 27kg/m (3.0m Span)
Cable basket is typically supplied in 3m lengths however BIM-MEPAUS generic cable basket system family lengths
will be modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
70 50 mm
120 100 mm
170 150 mm
320 300 mm
470 450 mm
520 500 mm
620 600 mm
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7.2 BIM-MEPAUS System Family - Fire Rated Cable Basket
Parameter Unit Value
Wall Height mm 100
Cable lay Depth mm 45
Material Type Text Steel
Text Stainless steel 304
Text Stainless steel 316
Finish Text Plain
Text Hot dipped galvanised
Text Powder coated
Text Pre-galvanised
Text Zinc plated
Cable load rating limit guide Text 7.5kg/m (1.0m Span)
Fire rated cable basket is typically supplied in 3m lengths however BIM-MEPAUS generic fire rated cable basket
system family lengths will be modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
350 150 mm
500 300 mm
650 450 mm
800 600 mm
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7.3 BIM-MEPAUS System Family - Cable Tray
Parameter Unit Value
Wall Height mm 50
Cable lay Depth mm 45
Material Type Text Steel
Text Aluminium
Finish Text Plain
Text Hot dipped galvanised
Text Powder coated
Text Pre-galvanised
Cable load rating limit guide Text 30Kg/m (3.0m Span)
Cable tray is typically supplied in 3m lengths however BIM-MEPAUS generic cable tray system family lengths will be
modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
175 150 mm
325 300 mm
475 450 mm
625 600 mm
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7.4 BIM-MEPAUS System Family – Fire Rated Cable Tray
Parameter Unit Value
Wall Height mm 150
Cable lay Depth mm 75
Material Type Text Steel
Finish Text Plain
Text Hot dipped galvanised
Text Powder coated
Text Pre-galvanised
Cable load rating limit guide Text 12.5Kg/m (1.5m Span)
Fire rated cable tray is typically supplied in 3m lengths however BIM-MEPAUS generic fire rated cable tray system
family lengths will be modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
530 300 mm
680 450 mm
830 600 mm
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7.5 BIM-MEPAUS System Family – Cable Ladder
Parameter Unit Value
Wall Height mm 100
Cable lay Depth mm 75
Material Type Text Steel
Aluminium
Stainless steel 304
Stainless steel 316
Finish Text Plain
Text Hot dipped galvanised
Text Powder coated
Cable load rating limit guide Text 50Kg/m (6.0m Span)
Corner and riser radii mm 300
mm 450
mm 600
Cable ladder is typically supplied in 6m lengths however BIM-MEPAUS cable ladder system family lengths will be
modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
215 150 mm
365 300 mm
515 450 mm
665 600 mm
965 900 mm
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7.6 BIM-MEPAUS System Family – Fibre Reinforced Plastic Cable Ladder
Parameter Unit Value
Wall Height mm 100
Cable lay Depth mm 65
Material Type Text Fibre Reinforced Plastic (FRP)
Finish Text Plain
Cable load rating limit guide Text 50Kg/m (6.0m Span)
Corner and riser radii mm 300
mm 600
mm 900
Fibre Reinforced Plastic Cable ladder is typically supplied in 6m lengths however BIM-MEPAUS FRP cable ladder
system family lengths will be modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
170 150 mm
320 300 mm
470 450 mm
620 600 mm
920 900 mm
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7.7 BIM-MEPAUS System Family – Fire Rated Cable Ladder
Parameter Unit Value
Wall Height mm 160
Cable lay Depth mm 45
Material Type Text Steel
Finish Text Hot dipped galvanised
Cable load rating limit guide Text 50Kg/m (1.5m Span)
Corner and riser radii mm 300
mm 450
mm 600
Cable ladder is typically supplied in 6m lengths however BIM-MEPAUS cable ladder system family lengths will be
modelled as per current Revit functionality which allows continuous straight lengths.
Overall widths Cable lay width Unit
260 150 mm
410 300 mm
560 450 mm
710 600 mm
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8 REVIT FUNCTIONALITY
8.1 Category classification
All cable containment families are designated in Revit MEP as systems and fittings.
This specification considers the following cable containment system types:
1. Cable Basket
2. Cable Basket (Fire Rated)
3. Cable Tray
4. Cable Tray (Fire Rated)
5. Cable Ladder
6. Cable Ladder (FRP)
7. Cable Ladder (Fire Rated)
8.2 Family naming syntax
The cable containment family naming convention is as follows:
Format:
Generic System Design Families : <Functional Type>_<Material Type>_<BMA>
Example system family name : CableLadder_Steel_BMA
MCM : <Functional Type>_<Material Type>_<ManufacturerName>_<Type Descriptor>
Example system family name : CableLadder_Steel_Unistrut_NEMA20C
8.3 BIM classification schedule
The BIM classification codes are based on the OmniClass Construction Classification System (known as
OmniClass™ or OCCS) for the construction industry and Natspec.
Figure 9.2.1 BIM classification schedule
Parameters Unit /Type Sample Value
OmniClass_ElementNumber Text 23.80.30.17.17
OmniClass_ElementName Text Cable Trays and Horizontal Racks
NATspecWorkSection Text 0911
Detailed definition of Elements can be found at http://www.omniclass.org/tables.asp
NATspec’s Work Section classification system can be found at
http://natspec.com.au/images/PDF/Worksection_Classification_List.pdf
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8.4 Clearance and access zones
Clearance zones for onsite installation, maintenance and access are provided for the cable containment fittings.
The default clearance zones specified in table 7.4.1 below are adjustable for design purposes and can be turned
on or off for the purpose of clash coordination exercises.
Table 7.4.1
Cable ladder example
Fine Level of Detail Plan with clearance and access
zones
Fine Level Detail / Shaded 3D with clearance and
access zones
Zone Default dimension Unit
Top 300 mm
LHS 100 mm
RHS 100 mm
Bottom 100 mm
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9 PARAMETER SCHEDULES
The schedule structure and parameters have been developed to meet the needs of the BIM-MEPAUS integrated
project delivery workflows as well as support future asset life cycle management requirements. The Product Data
Templates form a subset of the overall shared parameter scheme.
Refer to Section 4 - Shared Parameter Scheduling for a detailed overview of the intended use and application of
the schedules.
Parameter fields indicated in black bold text are included in the Product Data Template with the Design Model
Schedule being provided with a sub-set of these parameters detailed in Section 7.9 Generic Design Model
Schedule.
9.1 Identity schedule
Figure 7.1 Identity schedule
Design parameters Unit / Type Sample Value
ComponentName Text Cable Ladder
SystemServed Text Power
AreaServed Text Tower Central Plant
Location Text Level 32 Heater Plant room
ComponentStatus Text CAB
MCM parameters Unit /Type Sample Value
Manufacturer Text Manufacturer Name
Model Text NEMA 20C Steel
ProductCode Text LEL103
SerialNumber Text Serial Number
ManufacturerURL Text Hyper Link to product page
AM/FM parameters Unit /Type Sample Value
AssetIdentifier Text 20C Steel LEL103
Barcode Text Barcode Number
RFID Text RFID Tag Number
BIM-MEPAUS Specification
Cable Containment
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9.2 BIM classification schedule
The BIM classification codes are based on the OmniClass Construction Classification System (known as
OmniClass™ or OCCS) for the construction industry and Natspec.
Fig 7.2.1 BIM classification schedule
Parameters Unit /Type Sample Value
OmniClass_ElementNumber Text 23.80.30.17.17
OmniClass_ElementName Text Cable Trays and Horizontal Racks
NATspecWorkSection Text 0911
Detailed definition of Elements can be found at http://www.omniclass.org/tables.asp
NATspec’s Work Section classification system can be found at
http://natspec.com.au/images/PDF/Worksection_Classification_List.pdf
9.3 System analysis schedule
No system analysis parameters are currently defined for cable containment.
9.4 Green building properties schedule
No green building property parameters are currently defined for cable containment.
BIM-MEPAUS Specification
Cable Containment
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July 2017
9.5 Performance/Quality schedule
The performance and quality schedule details the performance and quality requirements for the cable containment.
The schedule brings together a number of typical specification requirements including those related to cable
containment design and performance, quality and mechanical-electrical system integration.
The Manufacturer’s certified model may overwrite some sections of this schedule replacing the design performance
requirements with submitted performance data.
Figure 7.5.1 Performance / Quality Schedule
Cable Containment Details
Parameter Unit/Type Sample Value
CableContainmentType Text Cable Ladder
Service Text BMS
Material Text Steel
LoadRating Kg/m 50
Deflection mm 10
SurfaceFinish Text plain
Cover Text Flat Cover
OperatingTempMax oC 500
FireRated Text No
Dimensional Details
Parameter Unit/Type Sample Value
Width mm 365
CableLayWidth mm 300
Length mm 6000
Height mm 100
CableLayDepth mm 75
BendRadius mm 600
Angle Degrees 90
Mounting Details
Parameter Unit/Type Sample Value
MountingType Text Hanger
BIM-MEPAUS Specification
Cable Containment
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July 2017
9.6 Manufacturer schedule
Manufacturer schedules are completed by suppliers to confirm the detailed performance, quality and configuration
selections.
Figure 7.6.1 Manufacturer’s Schedule
Cable Containment Details
Parameter Unit/Type Sample Value
Manufacturer Text Unistrut
Model Text 20C LEL103
Cable Containment Accessory Details
Parameter Unit/Type Sample Value
Straights Text 20
SpliceKits Text 80
9.7 Commissioning schedule
Commissioning schedules are based on NEBB and relevant Australian Standards and are to be completed by the
installers commissioning team and/or manufacturer’s representative.
No commissioning parameters are currently defined for cable containment.
END