Within each project there is a variety of additional equipment and systems that will be required. The number and type of additional equipment and systems will vary from project to project.
This section sets out the details and characteristics of the additional equipment and systems to be used where nominated and selected by the department and the project control group.
All systems when installed are to at least meet the relevant legislative requirements, including the National Construction Code and the relevant Australian Standards.
The requirements for the systems listed within this section are also to be complied with and may exceed the minimum requirements of the regulations.
Generally, the design of all special electrical systems and associated components should be undertaken on a ‘Whole of Life ‘ basis.
When assessing the relative merits of the various systems any financial calculations should consider the following:
Consideration of the following should also be considered:
The NSW Public Works Energy Manual for Buildings provides an energy-saving strategy by identifying aspects of the building and services where reductions in operating and maintenance costs can be made through proper selection of:
It also requires the formulation of an energy impact statement.
This Design Guide details the current policy direction.
The EFSG refines these requirements for each space.
Produce a Building User’s Guide to enable the client to understand the building systems and operate systems to maximise efficiency. This must:
Achieve energy efficient switching in Schools by:
In Secondary Schools, provide automatic control in all habitable spaces except:
In Primary Schools, the automatically controlled areas are:
Existing Secondary Schools
Use electronic time delay switches to replace the existing light switches.
Each switch must have:
Primary and new Secondary Schools
Install a system linked to the period-bell-alarm timer to control luminaires in the appropriate rooms. Use separate dedicated cabling for transmission of signals.
The automatic switching is to operate as follows:
By separating the lighting circuits from power circuits on the EDB, and using contactors to control the lighting circuits, a signal transmitted from the period bell control to the appropriate distribution boards will be able to control the lighting. This transmission can either be electronic or via hard wiring, with possible sharing of the period bell control cabling.
Method(s) of Operation
Hard-wired Option
Logic Control Option
Use dedicated cables to carry signals, which may be high frequency to equipment at the switchboards.
The following restrictions must be satisfied:
Basic Building Automation System Option
Basic building management systems are to be investigated to determine the appropriate system for the individual project.
The systems should also provide the opportunity for future expansion to control other equipment (eg mechanical services) to initiate energy efficiencies and integrate access lighting with security control.
The following criteria must be satisfied:
Common Requirements
Demountable, portable or transportable buildings are often installed to provide extra accommodation. The site services must cater for this.
Calculate the spare capacity required for the additional buildings on any particular project and incorporate this into the installation.
Provide electrical services for computer facilities.
Provide the services to meet the basic requirements of portable “stand-alone” computers and/or a small network computer system without being unduly complex or expensive.
Refer to the individual Rooms and Spaces Technical Data Table for data requirements.
Refer to DG / POWER
Use the upper channel for Structured Cabling System (SCS) network cabling back to the CD or BDs.
All wiring connected to the public-switched network either directly, via patching to the SCS or through a modem must comply with Australian Communications Authority (ACA) requirements.
Power Conduits (25mm)
Communications Conduits (25mm)
Where modifications and upgrade works are to be undertaken to existing halls, the works are to comply with the requirements of the BCA.
In particular, adhere to the following priorities to ensure the safety of students, staff and visitors:
High Priority
Medium Priority
Low Priority
Consult the Project Manager when building alterations are required. For instance, relocation of the switchboard may be more acceptable if the switchboard itself needs upgrading or replacement.
Obtain approval from the Project Manager before upgrading sound reinforcing equipment and stage lighting equipment that is in poor condition..
Toilet facilities for disabled persons are provided in the form of Access Toilet or Access Shower/Toilet. The Access Shower/Toilet has a hand-held shower and consequently must be considered a damp situation.
Obtain advice for the particular school from DoE School Security Unit (SSU) early in the design phase. In general there are three (3) options:
The installation of a commercial security system as part of the construction work is often considered for new schools and schools with new buildings and refurbishment to existing buildings. DoE SSU may elect to install a commercial system to the new buildings and retain the proprietary system in the existing buildings, if applicable.
Existing schools that have had electronic security fitted for several years have what is referred to as a proprietary system. Proprietary systems are no longer being installed.
Provide conduits or ducts between all electrical distribution boards for the installation of a future security system in new or upgraded buildings.
DESIGN SECTION
PO Box 1044
164 Walters Rd BLACKTOWN NSW 2148
Phone: (02) 9672 2000
Fax: (02) 9622 6650.
The process to be followed is:
Electrical Site Investigation Phase:
To ensure the project budget includes appropriate allowance for the electronic security works:
Electrical Design Phase:
To include the electronic security works as part of the electrical services trade:
If SSU advises a security system is to be installed or extended:
If a security system is to be installed or extended, include within the tender documents:
Tenderers/contractors must:
Refer also to DG / COMMUNICATIONS / PATHWAYS - GENERAL.
CCTV systems are required in several locations where indicated in the Rooms and Spaces Technical Data table,including:
Provide IP based camera system as per security requirements.
The monitor shall be:
Wiring between the camera and monitor shall be by 1x75 ohm coaxial cable or data cabling for IP system run in conduit for its full run.
Provide sound reinforcement equipment, when indicated in the Rooms and Spaces Technical Data table and generally in:
The equipment is used to amplify sound for a wide range of activities eg:
Note: Consult DoE regarding equipment selection where a Gymnasium is designed to also serve the Community.
The SRS equipment consists of:
Internal Outlets
Position speaker outlets each side forward of stage to minimise feedback
In Primary Schools, provide external microphone and speaker outlets for the external assembly area if it is immediately adjacent to the Communal Space.
Enclose the external microphone outlet in a lockable weatherproof enclosure. Mount the weatherproof horn speaker(s) in positions that minimise the possibility of vandalism and provide coverage of the assembly area.
Provide in the SRS equipment cupboard a labelled switch (or switches) for speaker selection with positions for “inside speakers”, “outside speakers” and “all speakers”.
Alternatively, provide a portable SRS from Government Contract.
The sound system must be portable and ready for operation from mains power. In general, the system must have:
An alarm call system is to be installed in:
Primary Schools Secondary Schools
Sick Bay Boys’ & Girls’ Clinics
Access Shower/Toilet Access Shower/Toilet
Alarm System in Sick Bay/Clinic
Alarm System in Access Shower/Toilet (Additional Requirements)
Depending upon the characteristics of the particular project a smoke detection and alarm system may be required by the BCA or as directed by the Project Manager.
Thermal/smoke detectors are required in:
Provide hearing augmentation systems to assist students and people who are deaf or hard of hearing to hear music and speech within the hall, library, movement studios, public reception, one interview room in Administration and areas that have a sound amplification system.
Students and adults use hearing devices which utilise different technology and are supported by different hearing augmentation systems.
The induction loop system shall:
The wireless soundfield system shall:
Refer BCA Part D, Clause D3.7
Signage
Provide the International Symbol for Deafness to indicate that an assistive hearing device / hearing augmentation system is installed.
Refer AS 1428.1, part 14.3 & 16
Location of Signage
Provide power and voice/data outlets to all work station type furniture.
Co-ordinate with the supplier of this furniture to ensure the electrical services allows full flexibility of use.
In general:
Provide controls for the operation of the motorised dampers on the roof ventilators. Generally one switch is required for each space within the school where roof ventilators are installed. Coordinate with mechanical documentation.
The switch mechanism is to be rotary without a stop position with two ON positions for summer and winter.
In general: locate the switch with the lighting control switches for the particular space. The requirements for the switch panels and labelling are contained in DG / LIGHTING.
Ensure the wiring and socket outlet/plug top connection is not visible through natural-light strips.
Refer to SG / SANITARY FIXTURES
