M
VICROADS SPECIFICATION
TCS 061 – 1 – 2014
The Supply
of
ITS Field Cabinets
Version:
2014
Revision:
1
Revision Date :
April 2014
TCS 061-1-2014
Foreword
This specification has been developed by VicRoads. It is one of a number
of technical specifications, and associated standard drawings, which set out
the requirements for roadside ITS devices, traffic signal equipment and
other electrical equipment and associated devices and control systems.
This specification is intended for use in all relevant works undertaken by or
on behalf of VicRoads.
VicRoads Standard Drawings, Specifications and Guidelines are available
for downloading from VicRoads website at the following address under
‘Tenders & Suppliers’, http://www.vicroads.vic.gov.au/itsspecs
COPYRIGHT
© Road Corporation trading as
VicRoads. All rights reserved.
This document remains the
property of VicRoads. No part
of this document may be
reproduced or copied in any
form or by any means,
electronic or mechanical,
including photocopying,
without the written
permission of VicRoads
Specification updates. VicRoads specifications and associated standard
drawings are subject to periodic review. To keep the specifications up to
date, amendments or new editions are issued as necessary. It is therefore
important for users of VicRoads specifications to ensure that they have the
latest version and associated amendments.
Road Operations
60 Denmark Street Kew 3101
Phone: (03) 9854 2103
Fax: (03) 9854 2319
Revision History
Revision
Date
Prepared by
Approved by
A (original)
April 2014
E. Lee
S Purtill
Road Operations
TCS 061-1-2014
PREFACE
A.
CHANGES TO THIS SPECIFICATION
A.1
The main changes to this specification from the previous version are listed
below:
•
•
Modification of headings and reorganisation of sections for greater
consistency with Australian Standard;
The following table details revisions to this specification:
Revision Date
Revision Owner
Purpose of Revision
April 2008
VicRoads FMS
Developed for M1 Project - FMS
May 2008
VicRoads ITS
In review for M1 Project - FMS
June 2008
VicRoads FMS
In review for M1 Project - FMS
November 2008
VicRoads FMS
Altered locking and colour requirements
January 2009
VicRoads FMS
Altered locking requirements - removed
specific requirement for Euro Half Profile
Cylinder type
March 2009
VicRoads FMS
clarified locking and key requirements
regarding provision of Bi-Lock system
Modified min and max dimensions for pole
mounted cabinets in section A.4
May 2011
VicRoads M80
project group
Clarified requirements for gland plate
Altered door stay requirements to be self
latching.
Added enclosure lights
Mounting Cabinet Location clarified
Feb 2014
ITS & Electrical
Standards
Converted to TCS format
Inclusion of Appendix B
© Roads Corporation trading as VicRoads. All rights reserved.
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TCS 061-1-2014
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Road Operations
TCS 061-1-2014
Contents
SECTION 1
1.1
1.2
SCOPE AND GENERAL ....................................................... 7
SCOPE ........................................................................................................7
GENERAL ..................................................................................................7
SECTION 2
RELATED SPECIFICATIONS AND DRAWINGS ............... 8
SECTION 3
ACRONYMS .......................................................................... 9
3.1
ACRONYMS ...............................................................................................9
SECTION 4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
CABINET DESIGN AND CONSTRUCTION ............................................. 10
MATERIALS ............................................................................................ 10
DIMENSIONS ........................................................................................... 11
DOORS ..................................................................................................... 11
PLINTH .................................................................................................... 12
GLAND PLATE ........................................................................................ 12
RIGIDITY ................................................................................................. 12
FRANGIBILITY ........................................................................................ 12
MOUNTING.............................................................................................. 13
VENTILATION ......................................................................................... 13
RESISTANCE TO WEATHER ................................................................... 14
EXTERIOR FINISH................................................................................... 14
CABINET LIGHTS.................................................................................... 14
LIFTING BOLTS ....................................................................................... 14
MARKINGS .............................................................................................. 15
SECTION 5
5.1
MECHANICAL AND PHYSICAL REQUIREMENTS ........ 10
FOUNDATION ..................................................................... 16
MOUNTING.............................................................................................. 16
SECTION 6
ELECTRICAL REQUIREMENTS ...................................... 17
6.1
ELECTRICAL SAFETY ............................................................................ 17
6.1.1 Danger Sign ........................................................................................... 17
6.1.2 Compliance ............................................................................................ 17
6.2
SWITCHBOARD ....................................................................................... 17
6.3
POWER OUTLET PANELS ....................................................................... 18
6.4
TRANSIENT AND OVERVOLTAGE PROTECTION ................................ 18
6.5
SURGE DIVERTER .................................................................................. 19
6.6
SURGE FILTER ........................................................................................ 19
SECTION 7
7.1
7.2
7.3
7.4
INTERNAL MOUNTING SYSTEM ........................................................... 21
INTERNAL SHELVES .............................................................................. 21
MOUNTING MISCELLANEOUS EQUIPMENT ........................................ 21
CABLE MANAGMENT ............................................................................ 22
SECTION 8
8.1
INTERNAL EQUIPMENT MOUNTING ............................. 21
MAINTAINABILITY ........................................................... 23
TOOLS ...................................................................................................... 23
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8.2
TCS 061-1-2014
ACCESSIBILITY ...................................................................................... 23
SECTION 9
9.1
9.2
DOCUMENTATION ............................................................ 24
GENERAL ................................................................................................ 24
INSTALLATION RECORDS ..................................................................... 24
APPENDIX A
POST MOUNTED CABINET ........................................... 25
A.1
GENERAL ................................................................................................ 25
A.2
DESIGN AND CONSTRUCTION .............................................................. 25
A2.1 Resistance to Weather ............................................................................ 25
A2.2 Exterior Finish ....................................................................................... 25
A.3
DOOR ....................................................................................................... 26
A.4
DOCUMENT STORAGE ........................................................................... 26
A.5
DIMENSIONS ........................................................................................... 26
A.6
PROVISION OF CONDUIT ENTRY .......................................................... 26
A.7
POLE MOUNTING ................................................................................... 26
A.8
INTERNAL MOUNTING SYSTEM ........................................................... 27
A.9
ELECTRICAL REQUIREMENTS .............................................................. 27
A.9.1 Danger Sign ........................................................................................... 27
A.9.2 Compliance ............................................................................................ 27
A.9.3 Power Distribution ................................................................................. 27
A.9.4 Outlets ................................................................................................... 27
A.10 DOCUMENTATION ................................................................................. 28
APPENDIX B
B1
B2
FOUNDATION DETAILS ................................................ 29
CONCRETE BASE FOUNDATION ............................................................... 29
CONDUIT AND CABLE ENTRY .................................................................. 30
Page 6 of 30
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TCS 061-1-2014
SECTION 1
SCOPE AND GENERAL
1.1
SCOPE
1.1.1
This document specifies the requirements for the supply of ITS Field Cabinets
for use by VicRoads within the state of Victoria.
1.2
GENERAL
1.2.1
ITS Field Cabinets are used for housing ITS electrical, electronic and
communication equipment typically associated with freeway management
systems.
1.2.2
Typical devices housed with a cabinet would include such things as:
•
•
•
•
Ramp Signal Controllers;
STREAMS Field Processors;
Sign controllers; and
Communications network equipment.
1.2.3
This specification also defines basic attributes of a small pole mounted cabinet
for use where a large 19-inch rack cabinet would be unwarranted. The
requirements for small pole mounted cabinets are specified in Appendix A.
1.2.4
It is intended that cabinets from different manufacturers will be physically
interchangeable.
© Roads Corporation trading as VicRoads. All rights reserved.
Page 7 of 30
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TCS 061-1-2014
SECTION 2
RELATED SPECIFICATIONS AND
DRAWINGS
2.1
The fabrication and supply of all components shall conform to all relevant
Australian Standards.
2.2
All installation works shall conform to the relevant VicRoads specifications and
related specifications and standards as indicated throughout this document.
2.3
Where no specific reference is made to an Australian Standard, the materials and
processes used shall conform to the relevant Australian Standard or generally
accepted practice.
2.4
The following related Australian Standards are referenced:
AS 62208
AS 60529
AS/NZS 1768
AS 2700
AS/NZS 3000
AS/NZS 3100
AS/NZS3085.1
2.5
Empty enclosures for low-voltage switchgear and control
gear assemblies – General requirements
Classification of degree of protection provided by
enclosures for electrical equipment
Lightning Protection
Colour standards for general purposes
Wiring Rules
Approval and test specification for definitions and general
requirements for electrical materials and equipment
Telecommunications installations – Administration of
communications cabling systems – Basic requirements
AS/ACIF
S008:2006
Requirements for customer cabling product
AS/ACIF
S009:2006
Installation requirements for customer cabling (Wiring
Rules)
The following VicRoads standard drawings are referenced:
TC 2100
Page 8 of 30
Standard Cabinet Label
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TCS 061-1-2014
SECTION 3
3.1
ACRONYMS
ACRONYMS
The acronyms used in this document shall be interpreted as follows:
AS
DIN
FMS
IP
ITS
LED
MCW
MOV
MTBF
NAP
NATA
RU
ACIF
Australian Standard
Deutsche Industrie Norm
Freeway Management System
Ingress Protection
Intelligent Transport Systems
Light Emitting Diode
Monash – Citylink – West Gate Upgrade
Metal Oxide Varistor
Mean Time Between Failures
Network Asset and Planning
National Association of Testing Authorities
Rack Unit (unit of height 1.RU = 1.75” or 44.45mm)
Australian Communications Industry Forum
© Roads Corporation trading as VicRoads. All rights reserved.
Page 9 of 30
Road Operations
TCS 061-1-2014
SECTION 4
MECHANICAL AND PHYSICAL
REQUIREMENTS
4.1
CABINET DESIGN AND CONSTRUCTION
4.1.1
The cabinet shall be of rigid construction using methods and materials which
ensure that it will have the strength and durability necessary to withstand normal
conditions of transportation, installation and operation anywhere within the State
of Victoria for duration of not less than 20 years.
4.1.2
The interior and exterior of the cabinet shall be free from sharp corners and
projections that may cause injury.
4.1.3
All exterior corners of the cabinet and roof shall have a minimum external radius
of 3mm. All accessible edges shall be de-burred.
4.1.4
The exterior of the cabinet shall present a clean and attractive appearance and be
free from fasteners such as bolts, screws and pop-rivets.
4.1.5
This life duration of 20 years does not include cabinet electrical components
such as fans or cabinet components requiring routine maintenance/replacement
such as dust filters.
4.2
MATERIALS
4.2.1
The type, grade, thickness and surface treatment of the principal material utilised
in the construction of the cabinet and its plinth shall be appropriate for a
minimum in-field life of 20 years as described in Section 4.1 of this
specification.
4.2.2
The cabinet external wall shall be of sufficient thickness to provide adequate
strength against vandalism and minor impacts from motor vehicles. The materials
and thicknesses used in the construction of the cabinet shall be
•
•
2.0mm marine grade aluminium; or
1.5mm stainless steel (Grade 316).
4.2.3
Appropriate materials, fixing methods and/or surface treatments shall be utilised
in the construction of the cabinet and plinth to prevent galvanic and
environmental corrosion of the cabinet and its plinth.
4.2.4
Reinforcing shall be provided as necessary to produce a rigid structure.
4.2.5
Any jointing shall be carried out in accordance with any relevant Australian
Standards and generally accepted principles of sound practice
Page 10 of 30
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TCS 061-1-2014
4.3
DIMENSIONS
4.3.1
The cabinet shall provide an internal racking system to suit 19-inch rack
mountable equipment. The 19-inch racking system shall also support modular
shelves (included as necessary for the specific installation). More detail on these
mounting requirements is given in section 6 of this specification.
4.3.2
The dimensions of the cabinet shall conform to the following:
Description
Minimum dimension
19-inch Racking Chassis Height
Overall Internal Height of Cabinet
Overall Internal Width of Cabinet
Overall Internal Depth of Cabinet
19-inch Racking Chassis Depth
Internal Depth of Cabinet with Doors Closed
External Depth of Cabinet with Doors Closed
Cabinet Base / Cable Zone
Gland Plate Aperture
30.RU (≈ 1333.5mm)
1400mm
–
550mm
480mm
580mm
600mm
100mm
250mm x 400mm
Maximum
dimension
–
1600mm
800mm
700mm
–
–
750mm
–
–
Note. RU = 1.75in or 44.45mm
Table 1 – Cabinet Dimensions
4.3.3
A clearance of at least 50mm shall be provided between the inner surfaces of the
front and rear doors when in the closed position and the 19-inch equipment
mounting surface of the vertical racking rails.
4.4
DOORS
4.4.1
Doors shall be provided at the front and rear and one side of the cabinet to give
direct access to all internal equipment for installation and maintenance purposes.
The size of the door openings shall be as close as practicable to the external
dimensions of the larger side of the cabinet, consistent with mechanical strength
requirements.
4.4.2
Both doors shall be individually lockable and secured in the closed position by
way of a multipoint securing system actuated via a single keyed lock. The lock
shall be the standard VicRoads Bi-Lock type with interchangeable cylinder. The
keying shall be set to match a standard VicRoads cabinet key code which shall be
provided to the Contractor upon award of the contract.
4.4.3
When installed, the cabinet shall be oriented such the doors are parallel to the
road when in the closed position and the side door is the furthest from oncoming
traffic.
4.4.4
Each door shall be stiffened and shall be hinged with a minimum of two hinges.
Hinge pins shall be constructed of materials of a type that do not require
lubrication to prevent seizing. Hinge pins shall not be removable. Hinges shall
© Roads Corporation trading as VicRoads. All rights reserved.
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TCS 061-1-2014
not protrude beyond the overall outside cabinet dimensions and that they be
concealed.
4.4.5
All doors shall be capable of being opened through a minimum of 110 degrees
from their closed position. Both doors shall be provided with a self latching door
stay.
4.4.6
A flat braided copper conductor of 6mm2 minimum shall be fitted in the vicinity
of the lower hinge to provide earthing of the door in accordance with AS 3000.
4.4.7
A pocket shall be provided on the inside of all doors to provide space for the
storage of items such as service cards and circuit diagrams. These storage
pockets shall have the minimum dimensions of 220 mm high x 300 mm wide x
20 mm deep and shall be provided with a finger slot or other suitable means to
facilitate removal of documents.
4.4.8
Both doors shall be provided with a serviceable, durable and resilient
weatherproof seal designed to last at least for the 20 year design life of the
cabinet. The seal shall ensure that the cabinet’s overall environmental IP rating is
maintained when the door is closed and locked.
4.5
PLINTH
4.5.1
The cabinet’s plinth shall provide a frangible connection to the concrete base.
4.5.2
The plinth shall allow for the provision for conduit entry as detailed above.
4.6
GLAND PLATE
4.6.1
The cabinet shall include a gland plate. The gland plate shall be easily removable
for cable installation and glanding.
4.7
RIGIDITY
4.7.1
The top of the cabinet when mounted on the footing shall not deflect more than
10 mm when a force of 2kN is applied at the top of the cabinet in any direction.
Furthermore, the mounting shall be sufficiently robust to withstand vandalism or
minor impact from a motor vehicle.
4.8
FRANGIBILITY
4.8.1
The cabinet shall be fastened to the securing bolts by means of frangible plates or
fittings so that, in the event of a severe impact (such as from an errant motor
vehicle) the cabinet will be dislodged from its mountings without damage to the
mounting bolts.
Page 12 of 30
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TCS 061-1-2014
4.9
MOUNTING
4.9.1
The cabinet shall include four holes for mounting onto a concrete foundation.
4.9.2
Attachment to the foundation will be by either a rag bolt installed within the
foundation or bolted down with loxons.
4.9.3
The mounting holes shall comply with the dimension detailed in Figure 1.
4.9.4
The holes shall provide oversize clearance for a 12mm mounting stud and
suitable for the frangible plates or fittings detailed in Section 4.8.
Holes for studs
Conduits for cable
entry shall be within
the area shown
320±1mm
476±1mm
Front of cabinet
Figure 1: Mounting dimensions for cabinets
4.9.5
Sufficient access shall be provided to the securing bolts to facilitate ease of
installation and removal of the cabinet and plinth from the base.
4.10
VENTILATION
4.10.1 Adequate ventilation shall be provided to prevent condensation and temperature
rise inside the cabinet under all weather conditions.
4.10.2 Ventilation shall be provided near the top (between the roof and the body
section) and near the base.
4.10.3 All ventilation openings shall be designed to prevent the ingress of dust and
insects, by the provision of a suitable filtering medium or other effective means.
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Page 13 of 30
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TCS 061-1-2014
If stand-offs are used on modular parts of the cabinet, these shall be of noncorrosive material to prevent environmental corrosion of the stand-off and
cabinet, and shall be sealed to prevent ingress of water.
4.11
RESISTANCE TO WEATHER
4.11.1 The cabinet shall comply with the requirements for IP55 as specified in AS
60529.
4.11.2 The roof of the cabinet shall be designed to prevent the pooling of water.
4.11.3 The cabinet base shall be sealed to prevent the ingress of vermin or moisture.
4.12
EXTERIOR FINISH
4.12.1 The finished colour of the cabinet shall be Vicroads standard traffic signal
controller colour (Smoke-Blue T-33).
4.12.2 All exterior surfaces of the cabinet shall have a durable gloss finish. This finish
shall be non-sacrificial, anti-graffiti and applied in accordance with the
manufacturer directions.
4.13
CABINET LIGHTS
4.13.1 A light for illuminating the interior of the cabinet shall be provided above each
cabinet door.
4.13.2 The lights shall be no more than 1RU in height.
4.13.3 Lights shall use a suitable long lasting globe (eg. fluorescent tube, LEDs)
4.13.4 The lights shall be door activated. When any door is opened, all installed lights
shall be activated.
4.14
LIFTING BOLTS
4.14.1 The cabinet shall be equipped with two a removable eye-bolts to enable it to be
safely lifted for transportation and onto the concrete base on-site.
4.14.2 The eye-bolts shall be located on the roof of the cabinet.
4.14.3 Removal of the eye-bolt from its mounting point shall not compromise the IP
rating nor affect the design life.
Page 14 of 30
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4.15
TCS 061-1-2014
MARKINGS
4.15.1 All roadside cabinets shall be marked with an appropriate VicRoads standard
cabinet label in accordance with VicRoads standard drawing number TC2100
displaying associated site numbers.
4.15.2 The cabinet shall carry readily accessible identification markings (by securely
affixed plate or other approved means) which shall include the following
information:
•
•
•
•
•
name and address of the manufacturer;
batch number of the cabinet;
serial number of the cabinet;
month and year of manufacture and
provision for warning labels and/or plates.
4.15.3 In addition, a suitable label, secured to the inside of the front door, shall be
available for the installing Contractor to annotate the installation date of the
cabinet.
© Roads Corporation trading as VicRoads. All rights reserved.
Page 15 of 30
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TCS 061-1-2014
SECTION 5
FOUNDATION
5.1
MOUNTING
5.1.1
The assembled cabinet shall be designed to mount on a concrete foundation via
the mounting holes detailed in clause 4.9.
5.1.2
The minimum size of the foundation sufficient access shall be provided to the
securing bolts to facilitate ease of installation and removal of the cabinet and
plinth from the base.
5.1.3
The cabinet shall remain level once mounted on the base.
Page 16 of 30
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TCS 061-1-2014
SECTION 6
6.1
ELECTRICAL REQUIREMENTS
ELECTRICAL SAFETY
6.1.1 Danger Sign
6.1.1.1 A warning sign “DANGER 240 VOLTS” shall be clearly fastened to the inside
of the door, in accordance with AS/NZS 3000 and comply with the following
requirements:
a.
b.
For symbolic signs - Sign No A2.7 in Appendix A of AS 1319.
For text type signs - Appendix A of AS 1319
6.1.2 Compliance
6.1.2.1 All electrical equipment and associated wiring within the cabinet as supplied
shall comply with the relevant requirements of AS 3100.
6.1.2.2 The electrical design, switchboard and cabling within the cabinet shall comply
with the relevant requirements of AS/NZS 3000.
6.2
SWITCHBOARD
6.2.1
The cabinet shall be supplied with a 19-inch rack mounted modular switchboard
of a height no greater than 5RU (222.3mm) and shall have a depth not greater
than half of the cabinet’s internal depth. No part of the switchboard shall be
below the level of the door opening. The switchboard shall be capable of
accepting all of the equipment listed below. The DIN rail shall be TH35 7.5 and
a minimum of 400mm in length.
6.2.2
All electrical components shall be suitable for operation on a 230VAC +10% / 6%, 50Hz ±0.1Hz system.
6.2.3
All power supply wiring within the switchboard shall be a minimum of 4mm2
(7/0.85) PVC.
6.2.4
The switchboard shall incorporate the following items rated to the calculated
prospective fault current:
a.
b.
c.
d.
1 x Single pole, DIN rail mount, miniature 250V, 32A, fused mains isolating
switch;;
1 x Single pole, DIN rail mount, 250V, suitably sized, miniature circuit
breaker for the surge diverter;
Surge diverter and surge filter as per Clause 6.5 and 6.6;
1 x 250V, 10A feeding remainder of the switchboard;
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Page 17 of 30
Road Operations
e.
f.
g.
h.
6.2.5
TCS 061-1-2014
2 x 250V, 6A miniature RCBO (Over current with earth leakage) earth
leakage circuit breaker protection for separate cabinet lighting and fan
circuits;
2 x 250V, 6A miniature RCBO (Over current with earth leakage) earth
leakage circuit breaker protection (1 per socket outlet strip with a maximum
of 10 socket outlets each);
Neutral bar and cover (with a capacity suitable for the circuit requirements
of the cabinet); and
Earth bar (with a capacity suitable for the circuit requirements of the
cabinet).
Each terminal shall be clearly and indelibly identified. The terminal assembly
shall be arranged so that:
a.
b.
The connecting cables can be formed in a neat manner; and
The individual conductors can be connected or disconnected without
disturbing other connections.
6.3
POWER OUTLET PANELS
6.3.1
Two power outlet panels shall be installed; one on each side of the cabinet.
These shall be used to supply power to equipment mounted in the cabinet.
6.3.2
Each power outlet panel shall:
a.
b.
c.
d.
Be wired to an individual sub-circuit;
Provide between 5 and 10 socket outlets, arranged to allow plug-pack type
transformers to be installed in all outlets concurrently;
Be mounted vertically on the rear side of the rack frame so as not interfere
with equipment racking and cabling; and
Be easily accessible from both the front and rear of the cabinet.
6.4
TRANSIENT AND OVERVOLTAGE PROTECTION
6.4.1
The cabinet shall incorporate protection against electrical transients and overvoltage. The installation shall follow the recommended practices for Multiple
Earthed Neutral systems, specified in AS 4070 for protection of low-voltage
electrical installations and equipment from transient over-voltages.
6.4.2
The cabinet installation shall follow the general guidelines for the protection of
persons and property from hazards arising from exposure to lightning in
accordance with AS 1768.
6.4.3
The switchboard shall also include the necessary devices to protect all equipment
being housed in the cabinet from electrical transients and over-voltage.
Page 18 of 30
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TCS 061-1-2014
6.5
SURGE DIVERTER
6.5.1
A surge diverter shall be supplied and installed in the cabinet switchboard. The
surge diverter shall provide protection against multiple impulses caused by
lightning or other transient disturbances. The surge diverter shall be in
accordance with Australian standard AS 4070 and connected between the
following terminals:
a.
b.
Phase and neutral; and
Phase and earth.
6.5.2
The surge diverter shall have a phase-to-neutral single shot 8/20us rating of
80kA and shall be suitably rated to withstand multiple impulses as defined by
location category C in AS1768.
6.5.3
The surge protection shall be rated at no less than 40kA for an 8/20us pulse.
6.5.4
The surge protection system shall be internally fused such that they are
disconnected if the unit experiences a surge that exceeds its rating and shall have
visual indication of the fuse operation, loss of power, or thermal overload. In the
event of a thermal overload the protection shall remain in circuit.
6.5.5
A voltage free changeover contact (Alarm output) shall be incorporated in the
system that shall activate upon any surge protector failure, power failure or
thermal overload condition. The contact shall be isolated to 4kV to all active
circuitry.
6.5.6
The surge diverter shall be rated for a nominal operating voltage of 240V and a
maximum operating voltage of 275V rms. Let through voltage (Residual
Voltage) for a 6kV 1.2/50us, 3kA 8/20us impulse shall be less than 900V when
measured at the surge diverter terminals.
6.6
SURGE FILTER
6.6.1
A surge filter shall be supplied and installed on the load side of the surge
diverter, and on the line side of the earth leakage protective devices. The surge
filter shall provide fine protection against multiple impulses caused by lightning
or other transient disturbances. The surge filter shall be connected between phase
and neutral in accordance with Australian standard AS 4070.
6.6.2
The surge filter shall have a minimum load current rating of 10A per phase.
6.6.3
The surge filter shall have a single shot 8/20us rating of 16kA per mode and shall
be suitably rated to withstand multiple impulses as defined by location category
B in AS1768.
6.6.4
The surge filter shall be based upon Metal Oxide Varistor (MOV) technology.
The line side MOVs shall be internally fused such that they are disconnected if
the unit experiences a surge that exceeds its rating.
6.6.5
The surge filter shall have visual tags and LED indicating, “power” and “status”
for each phase. The power LED shall extinguish when power to the unit is lost.
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TCS 061-1-2014
The status visual tags and LEDs shall extinguish when the MOV fuse operates;
when power to the unit is lost; or when the unit experiences a thermal overload.
In the event of a thermal overload the protection shall remain in circuit.
6.6.6
The surge filter shall be rated for a nominal operating voltage of 240V and a
maximum operating voltage of 275V rms. Let through voltage for a 6kV
1.2/50us, 3kA 8/20us impulse shall be less than 600V when measured at the
surge filter terminals.
Page 20 of 30
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TCS 061-1-2014
SECTION 7
INTERNAL EQUIPMENT MOUNTING
7.1
INTERNAL MOUNTING SYSTEM
7.1.1
The cabinet shall be supplied with an adjustable internal racking system of
vertical punched rails in each corner to the full height of the cabinet. The racking
system shall be capable of adjustment to accept standard 19-inch (482.6mm) and
Euro Metric (535mm) equipment. A minimum equipment mounting depth of
480mm shall be provided between the front and rear vertical racking rails as
shown in table 1 on page 10 of this document.
7.1.2
Two horizontal rails running the full depth of the cabinet shall be fixed to each
side for the sturdy mounting of the vertical rails.
7.1.3
The cabinet internal mounting system shall have provision for mounting
additional side vertical rails for equipment requiring extra support or for
mounting of equipment that does not utilise the 19” mounting system. It shall be
possible to mount these additional vertical rails in a range of fore and aft
positions.
7.2
INTERNAL SHELVES
7.2.1
The cabinet’s 19 inch rack mounting chassis shall allow shelves with a minimum
depth of 300mm to be installed on the vertical rails within the cabinet. The
shelves shall be rigid and free of sharp edges.
7.2.2
The shelves shall be provided with mounting holes on the left and right sides
with screws and nuts to allow location at any height on the vertical rails. The
shelf shall be capable of supporting a minimum static weight of 20kg without
deformation.
7.2.3
Shelves shall be able to be installed and fixed in position from both the front and
the rear of the cabinet.
7.3
MOUNTING MISCELLANEOUS EQUIPMENT
7.3.1
The internal design of the cabinet shall provide for the mounting of
miscellaneous electrical and telecommunications equipment by the DIN rail
mounting system.
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7.4
CABLE MANAGMENT
7.4.1
The cabinet shall provide cable management hardware running the full height of
the cabinet for the purpose of routing and securing of cables. The internal design
of the cabinet shall be such that the installed cable management hardware does
not interfere with the internal racking system.
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SECTION 8
MAINTAINABILITY
8.1
TOOLS
8.1.1
The design of the cabinet shall be such that any onsite assembly or maintenance
activities to the cabinet itself can be carried out with the use of common hand
tools.
8.2
ACCESSIBILITY
8.2.1
The design of the cabinet shall be such that maintenance personnel can access
equipment or cabling installed in the cabinet or to make adjustments or additions
to the racking or shelving without disassembling any part of the cabinet.
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SECTION 9
DOCUMENTATION
9.1
GENERAL
9.1.1
The cabinet shall be supplied with:
•
Detailed assembly drawings, including mounting details and dimensions,
cabinet base and securing bolts details and dimension
•
Detailed installation drawings, including cable entry details
•
Parts list (including all optional structural and electrical components &
modules)
•
Electrical interconnection diagrams
•
Electrical Switch board drawings including electrical protection details, e.g.
circuit breaker
•
Recommendations and procedures for routine and corrective maintenance
•
Recommendations on spare parts holdings (routine and corrective)
•
Compliance of the cabinet and its components with the requirement stated
within this specification
•
Records of tests conducted by the cabinet supplier and/or their component
supplier(s) to demonstrate compliance with the requirements stated within
this specification
•
Details of warranty conditions of the cabinet and internal components
9.2
INSTALLATION RECORDS
9.2.1
After installation of the cabinet, the Contractor shall provide the Superintendent
with a GPS record of the location of the installed cabinet.
9.2.2
All GPS coordinates shall be given in electronic format in GDA94 coordinate
projection.
9.2.3
All devices installed in a cabinet shall be associated with a site number provided
by VicRoads. All cabinet location GPS records shall also contain the site
number(s) of the system(s) that the cabinet services.
9.2.4
Electrical connections to Point of Supply and the Point of Supply details shall be
included.
Page 24 of 30
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APPENDIX A
POST MOUNTED CABINET
(Normative)
A.1
GENERAL
A1.1
This appendix outlines the requirements for a small post mounted cabinet. Such
cabinets are used to house electronic devices for ITS applications such as CCTV
and Wireless Vehicle Detection in situations where the use of a full sized 19-inch
rack mount cabinet is not warranted.
A1.2
The mechanical, materials and environmental requirements of the post mounted
cabinet shall generally comply with all mechanical, materials and environmental
requirements of the full roadside cabinet. However, attributes such as mounting
methods and overall dimensions shall differ.
A1.3
Examples of the kinds of devices suitable for installation in a post mounted
cabinet would include but not be limited to:
•
•
•
•
•
•
•
•
A.2
CCTV Power supplies
Access Point Power Over Ethernet (PoE) injectors
Digital video encoders for CCTV cameras
Small IP communications switches
Fibre-optic data transceivers
Data radio modems
Field Processor
Sign controller
DESIGN AND CONSTRUCTION
(Design and construction shall be in accordance with section 4.1 of this specification)
A2.1 Resistance to Weather
(Resistance to weather shall be in accordance with section 4.11 of this specification)
A2.2 Exterior Finish
(Exterior finish shall be in accordance with section 4.12 of this specification)
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A.3
DOOR
A3.1
A single door shall be provided at the front of the post mounted cabinet. The
size of the door opening shall be as close as practicable to the external
dimensions of the front face of the cabinet.
A3.2
A door retaining device shall be provided to lock the door in the open position.
This retaining device shall be stored inside the cabinet while the door is closed.
A3.3
Door seals shall be provided to ensure that the degree of protection (IP rating) of
the cabinet is not compromised when the door is closed and locked. These door
seals shall be made from a UV stabilised material and shall have a minimum infield life of 20 years.
A.4
DOCUMENT STORAGE
A4.1
A small pocket shall be provided on the inside of the door to provide space for
the storage of items such as service cards and circuit diagrams.
A.5
DIMENSIONS
A5.1
The outside dimensions of the post mounted cabinet shall be within the bounds
below:
HEIGHT
WIDTH
DEPTH
Minimum (mm)
400
300
200
Maximum (mm)
650
450
400
A.6
PROVISION OF CONDUIT ENTRY
A6.1
The entry of all cable conduits shall via the under-side of the cabinet. The
cabinet shall allow entry of 2 x 32mm2 cable conduits as a minimum. These
conduits shall be flexible, fully weather proof, vandal proof (i.e. slash proof), and
shall be made from:
Flexible stainless steel or;
A flexible polymer hose with internal or external braided stainless steel weave.
A.7
POLE MOUNTING
A7.1
The cabinet shall be able to be securely mounted to wooden and metal poles with
circular, square and hexagonal cross-sections.
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A7.2
The mounting height of the cabinet shall be variable at installation time to suit
the surrounding environment. This mounting height shall be fixed thereafter.
A7.3
The cabinet shall be mounted in such a way as not to interfere work the
functionality of the pole, ie. 10m mid hinged poles.
A7.4
The mounting strap mechanism shall be able to be locked in place by way of a
durable keyed lock or similarly secure mechanism.
A.8
INTERNAL MOUNTING SYSTEM
A8.1
The cabinet shall provide an internal DIN rail mounting system. The quantity or
rail installed in the cabinet will depend on the number of devices required for the
intended application.
A8.2
It is highly desirable that all devices installed in the post mounted cabinet be
DIN rail mountable. Shelves may also be provided in order to support non-DIN
rail mounted devices.
A.9
ELECTRICAL REQUIREMENTS
A.9.1 Danger Sign
(Danger sign shall be in accordance with section 6.1.1 of this specification)
A.9.2 Compliance
(Electrical compliance shall be in accordance with section 6.1.2 of this specification)
A.9.3 Power Distribution
A9.3.1Mains power shall be distributed to devices installed inside the post mounted
cabinet via suitably protected DIN rail mounted terminal strip connectors.
A.9.4 Outlets
A9.4.1A dual 240VAC general purpose socket outlet shall be provided inside the post
mounted cabinet. This outlet shall have a continuous rated current load of 10A.
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A.10 DOCUMENTATION
(Documentation for the post mounted cabinet shall be provided in accordance with
section 9 of this specification)
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APPENDIX B
FOUNDATION DETAILS
(Normative)
B1
CONCRETE BASE FOUNDATION
B 1.1
The foundation shall be designed to be suitable to securely support the cabinet.
B 1.2
The foundation shall include a concrete apron 80mm thick all around. The sides
of the apron shall extend a minimum of 200mm from the foundation.
B 1.3
The front and rear of the apron shall extend a minimum of 600mm from the
foundation.
B 1.4
The top surface of the foundation shall be 150mm above the surface of the apron.
B 1.5
The foundation shall include a 30mm chamfer on all sides of the top edge.
B 1.6
A clearance of 1000mm must be maintained in front of the cabinet.
B 1.7
Foundation to be minimum clearance of 500mm to back of kerb and 200mm from
building lines, poles etc.
1010mm
950mm
30mm
Chamfer
200mm Min.
Rag bolts or
Holes for
loxons
850mm
Concrete
apron
910mm
Front
600mm
Min.
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B 1.8
The Contractor shall supply plans for the design of the concrete base to the
Superintendent for review prior to construction and installation of the ITS Field
cabinet.
B 1.9
The cabinet shall be fixed in accordance with section 5.1 of this specification.
B 1.10 The concrete base shall have four (4) cast-in 100mm conduits as follows:
•
•
Two orange conduits, each 100mm in diameter for power cabling.
Two white conduits, each 100m in diameter for communication cabling.
B 1.11 The concrete base shall be oriented such the doors of the installed ITS Field
cabinet are parallel to the road when in the closed position and the contractor
must obtain agreement from VicRoads prior to installation of the concrete base if
this orientation cannot be achieved due to site conditions
B2
CONDUIT AND CABLE ENTRY
B2.1
The cabinet shall be designed to accommodate cable entry from the bottom
through conduits cast in to the concrete foundation. The bottom of the cabinet
shall provide an aperture of not less than 250mm x 450mm through which the
cabling will pass.
B2.2
A gland plate shall be provided with proper glands for all cabling to pass
through.
B2.3
The cabinet shall be located so that the doors can be opened free of obstructions
such as retaining walls or noise fences.
Page 30 of 30
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