he subject item is a pedal-powered rip saw with a tilting table made in the USA by W.F. & John Barnes Co. of Rockford, Illinois, between 1874 and 1890. The saw's blade moves rapidly in a circular motion and is driven by a pedal that spins a heavy flywheel with a leather belt attached to a gear drive that in turn drives the circular saw blade. The operator holds a wood workpiece on the table and moves it forward so the blade cuts it to the desired width and length. Company History: WF & John Barnes Co. was established in 1869, by making a formal partnership between William F. Barnes and John Barnes in 1872, and then incorporating in 1884. This company was an early manufacturer of pedal-powered equipment. By 1881 they were also making powered machinery such as lathes and pedestal drills. Many companies were making lightweight foot-powered equipment, but Barnes and the Seneca Falls Co. were the only ones to also make professional-grade workshop machines. From the beginning of their existence, they focused on pedal-powered machinery and specialised in making scroll saws. By 1937 the company focus had completely shifted to automotive assembly machinery, and custom-built machinery, machine tools, electrical, hydraulic, and mechanical controls and systems, including nuclear hardware. their production of foot-powered machinery had ceased. In the intervening years, they have got out of manufacturing completely. After a series of ownership changes, their equipment parts and stock were purchased in 1998 by LeBlond Ltd. of Amelia, Ohio. An item that although incomplete gives a snapshot into the manufacture and use of early woodworking machinery before the introduction of electricity or electric motors to power machines.A treadle powered tilting table saw bench"WF & J Barnes, Rockford Ill USA"flagstaff hill, flagstaff hill maritime museum and village, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, tilting saw bench, saw bench, 19th century saw bench, treadle saw bench, woodworking building equipment, carpentry equipment, carpentry, w. f. and j. barnes, usa

Protective relays are one of the critical components of the elctrical power grid that serve to detect defective equipment or other dangerous or intolerable conditions and can either initiate or permit switching or simply provide an alarm to provide an alarm to provide a safer, more reliable delivery system. Used in power stations. The function of relay is to quickly remove from service any equipment that might suffer damage or otherwise affect the operation of the system. Relays protect the electrical system in 2 ways: Prevent failure or damage to electrical systems. Mitigate the effects of failure when it occurs. Switches that control other switches. Relays are used where it is necessary to control a circuit by an independent low-power signal, or where several circuits must be controlled by one signal.Used by the State Electricity Commission of Victoria for the Kiewa Hydro Electric Scheme in the power stations. Manually operated by remote control for an external circuit breaker. The relays were from a Kiewa Hydro Power Station control panel.Collection of black metal rectangular boxes (heavy) containing electrical wires forming a circuit. The longer, narrower rectangles have a bakelite knob at one end. Some of the boxes have one side of clear perspex and another has all sides of clear perspex. One is labelled "group relay". Another has windows with labels eg. 'turbine overspeed' 'emergency trip' and one has 3 steel knobs. - with 'stop', 'start'. One box is larger than the rest and has clear perspex side showing 'overcurrent relay' and workings.One has a plaque attached. Manufacture: "The English Co. Ltd. Londonpower circuits, electrical equipment, electric power control, power relays, power station, circuit breaker

This transformer lamp system, which has a dial to transform 240 volts to a minimum of 32 volts was used by electrical technicians to inspect internal parts of the large generators (even in small confined spaces). The reason for the reduction of the 240 volts to the 32 volts was for the safety of the inspector. The SEC Victoria Hydro Scheme's electrical generators are powered by the hydro force of "stored" water at a higher altitude. The establishment of both the NSW and Victorian Hydro schemes was achieved from the mid 1900's to the 1960's. At this the point in time the need for additional power sources to quench both an industrial and domestic demand for electricity was purely an economic and not and environmental (carbon reduction) factor. This hydro scheme was instigated by "the Government of the day" as a bold move and was the major force of the World War II refugee and "technical" workforce inclusion of skilled and unskilled migration into the Australian environment. Although this mass "invasion" of workers with families was thought of in some circles as intrusive, the expansion of population post war years and its integration into the Australian rural sector, produced the multi- lingual multi-cultural diversity of later years.This transformer lamp is very significant to the Kiewa Valley as it was introduced as a very small part of the explosion of human resources into the valley. This influx of population transformed the region from that of a basically quiet rural region to one which evolved into both industrial and larger residential community. This evolution in the valley created a change, not only in the "physical" landscape but also the socio-economic expansion which permitted other "tourist" based industries into the valley. This is also a specific electronic item which was manufactured in Melbourne and not sourced from Europe or Asia. This demonstrates the fast evolution of Australian technology to a high standard compatible to that of the rest of the world.This heavy hand held electrical transformer (transforms 240 volts to 32 Volts) an has one leather handle on the top with three small (gauze filtered) air holes. It also has two 2 pin directional cable distribution (clipsal) in/out points 10amps / 240 volts. There is one glassed in volts/ac meter and one variable switch (180 to 150 voltage in settings of 10 volt increments.There are two vents (one on each of the smaller sides). There is also one three pin electrical lead coming out from the top.On one side is a manufacturer's plaque with "ELECTRONIC A & R EQUIPMENT MELBOURNE" and underneath "TYPE 1719, PRI V. 180 250" underneath "V.A. 1250" underneath "CYC 50" underneath "SEC V. 115" underneath "SEC A. 10 . 8". The label on topside "CAUTION SET SWITCH TO 250 v BEFORE CONNECTING TO MAINS THEN, WITH EQUIPMENT OPERATING, SET METER TO RED LINE.kiewa hydro electricity scheme, victorian state electricity commission, transformers

This Timing Relay is quite a large (industrial type) apparatus. The Timer is started by having a voltage of 250 volts direct current (as supplied by batteries). A DC motor then rotates driving into a clockwork mechanism, the output of which is an arm rotating at the same speed as a minute hand on a clock. Attached to this arm is a mercury switch which tips and makes an electrical circuit operate in a sequence control system. The sequences that use these timers are when starting and stopping Hydro Generators. They check that the machine has connected to the power system grid before 20 minutes duration. Brakes must go on for a set time when shutting down a generator slowing at the right speed as measured by this apparatus. These generators are powered by the hydro force of "stored" water at a higher altitude. The establishment of both the NSW and Victorian Hydro schemes was achieved from the mid 1900's to the 1960's. At this point in time the need for additional power sources to quench both an industrial and domestic demand for electricity was purely an economic and not and environmental (carbon reduction) factor. This Timing Relay apparatus is very significant to the Kiewa Valley as its use was introduced during the Kiewa Hydro Scheme. Although only a relay apparatus, it was however part of the explosion of human resources into the valley. This influx of population transformed the region from that of a basically quiet rural region to one which evolved into both an industrial and a larger residential community. This evolution in the valley created a change, not only in the "physical" landscape but also the socio-economic expansion which permitted other "tourist" based industries into the valley. This Hydro Scheme was instigated by "the Government of the day" as a bold move and was the major force behind the acceptance of World War II refugee and "technical" workforce. Inclusion of skilled and unskilled migration into the Australian environment was of a higher priority than a selective quota system of later years.. Although this mass "invasion" of workers with families was thought of in some circles as intrusive, the expansion of population post war years and its integration into the Australian rural sector, produced the multi- lingual, multi-cultural diversity of later years.sec vic kiewa hydro scheme, alternate energy supplies, alpine population growth

This Favag Timer apparatus was a part of the first electronic control system -(1960's), in Victoria), which worked using telephone stepping selectors to convey a change in voltage providing a regulated pulse from the control centre(Mount Beauty) to the remote Power Stations opening and closing (stop/start) of various devices at the Power Station and a return signal confirmed the action taken. Testing of this unit was carried out using a "dummy" device at the remote Power Station so as not to disrupt the power plant's operation. This timer was one of many electrical apparatus connected to the large SEC Victoria Hydro Scheme's electrical power producing generators. These generators are powered by the hydro force of "stored" water at a higher altitude. The establishment of both the NSW and Victorian Hydro Schemes was achieved from the early 1900's to the 1960's. At this point in time the need for additional power sources to quench both an industrial and domestic demand for electricity was purely an economic and not and environmental (carbon reduction) factor. This hydro scheme was instigated by "the Government of the day" as a bold move and was the major force of the World War II refugee and "technical" workforce,inclusion of skilled and unskilled, migration into the Australian environment. Although this mass "invasion" of workers with families was thought of in some circles as intrusive, the expansion of population post war years and its integration into the Australian rural sector, produced the multi- lingual multi-cultural diversity of later years.This Favag Timer was one of the crucial pieces of equipment that made it possible for the Mount Beauty Terminal Station to control the operations of these Power Stations; McKay, Clover, West Kiewa Power Stations and the Dederang Terminal Station.This aluminium and anodised "FAVAG" (pulse) timer is fastened to a base structure which comes with its own metal cover that is fastened by two metal hooks. From the top of these hooks runs a thick leather "carry" strap.The instrument, itself, a small "micro motor" at one end tape feeding spool on the other. Aluminium metal structures offer a preventative barrier against any electronic spikes from static electricity sources. There are two toggle switches to the bottom right hand side and twelve coloured "pin" connection points.There is a sliding access sleeve which exposes a circuit board.with various leads fastened on each side. In front of one of this slide are two "screw in" fuses, spare fuses are in a small envelope taped above. Circuit diagrams are etched white on black background on the top face of the main structure. At the base of the back section is a two pronged input terminal. There is a fine black rubber layer (cushioning) for the mian top cover.On the cover fastened with two rivets "FAVAG" underneath in small print "Fabrique d'appareils electriques S.A." underneathe "NEUCHATEL-SUISSE". on one end is a "STATE ELECTRICITY COMMISSION OF VICTORIA" metal label screwed on.The back label has manufacturers' type and model number.sec vic kiewa hydro scheme, alternate energy supplies, alpine population growth

This tester was used between 1950 and 1980's. As part of the Occupation, Health and Safety requirements, equipment used to monitor the performance of electricity producing generators, regularly, hand held testers were used to check the insulation and the "earth" pin were up the the required operational levels. As the generators and their ancillary monitoring equipment was spread over a large area and cumbersome to service small hand held devices were required. These had to always be safe for the user to operate. A selected range of high quality meters were recalibrated every two years in the Meter and Calibration Laboratory at Yarraville(near Melbourne) This meter is very significant to The Kiewa Hydro Electricity Scheme because it was an integral part of maintaining the electricity producing water driven generators of the power stations. The reason why this meter was so essential is that provided the safety check on equipment used to monitor each Hydro Generator that they were complying within the grid network parameters. Grid parameters are set so that if there is an electrical fault on the system, that fault can be attended to with a very small change in the output stability of each generator. It is essential that the voltage of the network remain within the set limits. Generators are at Dartmouth, Mackay, Clover, West Kiewa, Yarrawonga, Cain Curran and three Power Stations in the Thornton area.This hand driven current generator produces 500 volts by winding the handle(on funnel curved side) to keep the voltage constant(one minute per test). The whole body is made from caste aluminium. One of the functions of this meter is to test the isolation resistance of any equipment being tested. This is to see if that equipment is safe to handle(no electrical shocks). The second function is to test the earth pin of any portable electrical equipment. The turn key on one side can direct which function is required(marked insulation or continuity). On the top side(enclosed in a glass fronted marked scale) is a continuity scale(top) and an insulation scale(bottom). This is covered , when not in use by "flip up" lid with manufacturer's details and name of the instrument. Opposite the winder are two screw tight knobs. One marked earth(left side) and one marked line(right side). On the top and next to the glass windowed scales in a post manufacture SEC Vic equipment equipment ID number. For carrying purposes there is chromed steel (fold together) handle.The bottom of the unit has two metal "feet" 150mm long by 114mm wideManufacturer's details on top side "MEG" underneath "INSULATION AND CONTINUITY TESTER" below this "constant 500 VOLT pressure" below this "REGISTERED MEG MEGGER TRADE MARK" below this "REG DESIGN NO. 690326" below this "UNITED KINGDOM PATENT Nos. 193746, 197178, 198182, 202062, 202398, 204649, 350715" below this "SUPPLIED BY THE GENERAL ELECTRIC Co. Ltd OF ENGLAND" below this "MAGNET HOUSE, KINGSWAY LONDON W.C.2" 'sec vic kiewa hydro scheme, alternate energy supplies, alpine feasibility studies temperature, rainfall

This case was used between 1950 and 1980's. As part of the Occupation, Health and Safety requirements, equipment used to monitor the performance of electricity producing generators, regularly, hand held testers were used to check the insulation and the "earth" pin were up the the required operational levels. As the generators and their ancillary monitoring equipment was spread over a large area and cumbersome to service small hand held devices were required. These had to always be safe for the user to operate. A selected range of high quality meters were recalibrated every two years in the Meter and Calibration Laboratory at Yarraville(near Melbourne)This leather case contains a meter which is very significant to The Kiewa Hydro Electricity Scheme because it was an integral part of maintaining the electricity producing water driven generators of the power stations. The reason why this meter was so essential is that provided the safety check on equipment used to monitor each Hydro Generator that they were complying within the grid network parameters. Grid parameters are set so that if there is an electrical fault on the system, that fault can be attended to with a very small change in the output stability of each generator. It is essential that the voltage of the network remain within the set limits. Generators are at Dartmouth, Mackay, Clover, West Kiewa, Yarrawonga, Cain Curran and three Power Stations in the Thornton area.This carry case is made from leather hide and cloth covered cardboard insert. The front side has a lockable English made suitcase fitting. It has a broken carry strap (leather) travelling from top and through leather strap holders both sides and on the bottom of the case. A State Electricity Commission of Victoria identification tag riveted onto the top lid "ELECTRICAL ENGINEERING SECTION No. 1483"sec vic kiewa hydro scheme, alternate energy supplies, alpine located electricity generators, mobile measuring equipment

This manual telephone exchange console is an important piece of equipment which provided the most efficient method of long distance communications in the 1950's to the 1980's. Communications were critical, not only for the regional Hospital, but also for large construction sites i.e. the Kiewa Hydro Scheme, especially if they are in dense rugged mountainous regions. The degree of Occupation Health and Welfare on industrial sites were at a bare minimum compared to the work scene after the 1980's.This telephone exchange console is highly significant to both the Kiewa Valley and Mount Beauty region because it was so important in the communications field relating to operational safety and work related controls. The success of any large undertaken relies heavily upon good communications. In the hospital this method of communications is still used i.e. patient to ward station. This flag system link a patient's room to the controlling nursing station. Identification of the patient needing help is crucial for swift action from the available medical staff. Similarly in large construction sites such as the Kiewa Hydro Scheme, successful instant communications was also essential. This switchboard required a 50 volt supply to successfully operate and was in use when both telecommunications and postal were under the one Federal Government carrier i.e. The Post Master General. A benefit with a line communication system (such as the one that fed this console was that interference from atmospheric conditions did not impede the connection.This console telephone switchboard (manual) unit has a shutter operation (precursor to the light indicator) to identify the caller to the telephone switchboard operator. This switchboard has a ten point indication shutter system allowing the operator to clearly identify where the caller is located. The console has a 44 connection point holes with their configurations in a triangular shape. The shutters are held closed by a small lever at the top which is opened by a small electrical charge from the incoming call. The operator uses a wind up handle to power a magneto connector(handle on the console's right side). The telephone hand set is located on the left side of the console. sec vic kiewa hydro scheme, alternate energy supplies, alpine population growth and communications

This testing voltmeter recorder was last certified by SEC Vic laboratories on the 17/4/77. It was used extensively as mobile recorder placed for periods of one month at locations experiencing unacceptable fluctuations of power. These locations would cover the North East regions of Victoria. They cover voltage drops at domestic and business properties especially those that were experiencing regular fluctuations(daily) at approximately the same time of the day. As the electrical network is required to operate within a set level of voltage, fluctuations outside of this has to be investigated and necessary remedial action taken. This is especially so for rural properties where power "drainage" can occur through animal/bird and tree interference. It can also be the result of defective wiring and overloading at peek operational times (milking machines).This mobile voltage recorder is very significant to the Kiewa Valley because it highlights the difficulties that can occur in maintaining a power supply that experiences fluctuating power demands by the rural industries that it supplies. The requirement of a mobile testing apparatus to cover the various sections in the Kiewa Valley and other rural areas in the northeast region is one of necessity as electricity once connected to a rural property is a labour saving supply as generators on rural properties require a higher degree of maintenance an ultimately at a higher cost. The testing of the SEC Vic supplied electricity to rural properties,those who had previously run on generators, had to be quick and unassuming with certainty of correct supply levels.The mechanism of this voltage recorder has been installed(by the manufacturer) into its own protective wooden box. This box has a front (swing open) lockable section which permits direct access to the installed measuring equipment (for servicing and data collection). The top section of the box has two screw on terminals for access to the machine being tested. This tester has its own inbuilt ink supply facilities and a mechanical clockwork device that unwinds a roll of paper onto a second roll at a rate of 10 mm per hour. The recording chart is marked with time slots against voltage. There is a recording arm which has an ink pen at the end. Both arm and pen carry the ink supply from the ink reservoir, located on the left side of the cabinet door in specially constructed bottle holder( three small bottle capacity). To record a suspect power problem to a home or business establishment the voltmeter is connected to a power supply outlet being tested and wind the recording clockwork mechanism (gives a four week running time). Before leaving the recorder in situ the electrician checks to see if the chart is recording the correct voltage and that the clock mechanism is advancing correctly.On the front of the access "door" at the top a metal label "RECORDING AMMETER" below this "MURDAY SYSTEM" below this "ALTERNATING CURRENT" and below this the manufacturer's registered number "No. 139156" Below this is a metal tag with State Electricity Commission of Victoria Electrical Engineer's Section equipment number "338" Below these tags and above the viewing window is the manufacturer's dtails "EVERSHED & VIGNOLES Led LONDON"sec vic kiewa hydro scheme, alternate energy supplies, alpine feasibility studies temperature, rainfall, power outages

This belt is typical of those used in the lineshaft system of operation, with one central motor sometimes steam but later electrical, which allowed the power to be disippated to a number of points. This belt links into Warrnambool’s past with the name of S Carter. Samuel Carter emigrated from Yorkshire in 1865 and opened his saddlery in 1866 in partnership with a Mr Roach until he moved his business to Fairy Street around1885. Samuel Carter died in 1892 and his son continued the business until around 1940.Brown hard leather with 9 metal staples in each end Two oval stamps with S. Carter Warrnambool around outer edge and Saddler stamped in centre. All uppercase. Larger stamp is incomplete. warrnambool, samuel carter, saddlery lineshaft belt lava street fairy street

Print of drawing number VB4/7184C "Diagrammatic Arrangement of Feeders and Trolley Wire", marked up in colour showing the various feeder and trolley wire arrangements for the central part of Ballarat and the Gardens line. Shows the detailed switch locations that enable the overhead to be isolated or changed when electrical work was being undertaken on the overhead that required it to be isolated. Shows how the various sections were fed from the power station. Revision C issued 2-9-1958.Yields information about the arrangement of the power supply to the trams from the power station and changes made to the system about 13 years prior to closure. Dyeline print on white paper of Drawing - "Diagrammatic Arrangement of Feeders and Trolley Wire" - VB4/7184Ctramways, ballarat, secv, trolley wire, feeder cables, overhead, power station, electrical engineering, electrical switching

SEC Drawing BA-T5-7177 - "Diagrammatic arrangement of Feeders and Trolley Wires during Reconstruction ." Shows the layout of the feeders and part of the trolley wire, power station, whether underground, cable size and location of section insulators and size of cable. Made by SEC in Nov. 1935. Note not printed at full size. Two copies held. image i2 taken from the microfilm - see item 4307, sheet 11Yields information about overhead planning for the refurbishment of the Ballarat Tramway System and in particular the intersection of feeders and trolley wire electrical distribution.Print made from a microfilm using a microfilm printer.sec, overhead, power supply, feeders

Drawing - BA-T5-7184C ""Diagrammatic arrangement of Feeders and Trolley Wires." Shows the layout of the feeders and part of the trolley wire, power station, whether underground, and location of section insulators and size of cable and other information about the power supply system, including switches and whether normally open or closed. Made by SEC in May 1937. Shows cross and street names. Note not printed at full size. See also Reg item 2006 for a framed print of this drawing and Reg Item 4773 for an original coloured, marked-up print of this plan. See microfiche item 4307 fiche 11/5 for drawing VB4-7184C. image i2 taken from the microfilm - see item 4307, sheet 11Yields information about overhead planning for the refurbishment of the Ballarat Tramway System and in particular the intersection of feeders and trolley wire electrical distribution.Print made from a microfilm using a microfilm printer, of SEC Drawing BA-T5-7184C sec, overhead, power supply, feeders

Yields information about the SEC in Ballarat and in particular the conversion from DC power to AC.Newspaper clipping from the Saturday Magazine of The Courier 30/6/1984 titled "50 years of the SEC", looking at the history of the SEC in Ballarat, includes the conversion of plant from DC to AC which was not completed until 1968. Notes the two power stations and SEC offices have been moved to Norman St. Has five photos, including a staff photograph with many names, a photo of Bridge St, a collision between a truck and tram 14, SEC advertising and an interior view of Ballarat A. Written by John Dyallsec, ballarat a power station, sec crews, electrical engineering, electrical systems, electricity supply

Yields information about the rates for electricity in Geelong and Ballarat., Yields information about the rates for electricity in Geelong and Ballarat..1 - Memorandum to Manager Ballarat from Engineer Melbourne, dated 28/3/1962, forwarding a copy of a series of questions put to the local Manager from the Ballarat Courier and a response from Minister for Electrical Undertakings Murray Byrne. .2 - Report - address to the Minister - 4 foolscap sheets, questions involved the rate for electricity in Geelong prior to the closure of the Geelong system and the current rates, power consumption in Geelong and Ballarat and how much power did the trams used the previous year. All sheets have round edges.trams, tramways, geelong, electricity supply, power supply

.1 - Book - 8 pages + grey covers, side stapled, issued by the Australian Standards Association, "Electrical Voltages and electrical frequencies for new installations ", C1 (a&b) - 1926, December 1926. .2 - Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Overhead Line wire material for telegraph and telephone purposes", C3-11-1925, November 1925. .3 - Book - 20 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Telephone cable, paper insulated lead covered", C12 - 1928, January 1928. .4 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Marking for Switchboard bus-bars and connections" C13 - 1925, December 1925 - with a pasted green label noting that the "tentative standard is now endorsed as Australian Standard without amendment" - dated Oct. 1930. .5 - Book - 32 pages + grey covers, side stapled, issued by the Australian Standards Association, Tentative Australian Standard "Dimensions and Resistances of Bare Annealed Copper Wire for Electrical Machinery and Apparatus", C 18-1926, October 1926. .6 - Book - 12 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Slate Slabs for Electrical Purposes", C19 - 1926, July 1926. .7 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Moulded Flat Top Insulation Bushes" C20-1926, October 1926. .8 - Book - 16 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Insulation dimensions and resistance of enamelled plain copper wire for instruments and apparatus" C21-1928, January 1928. .9 Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Watertight Glands for electric cables" C22-1926, September 1926. .10 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Air-break knife switches and laminated brush switches for voltages not exceeding 660Volts" - C23 - 1926, August 1926" On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" trams, tramways, power station, standards, materials, electrical systems

.1 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Air-break knife switches and laminated brush switches for voltages not exceeding 660Volts" - C23 - 1926, August 1926" .2 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Flame proof air break switches for Voltages Not Exceeding 600Volts", C25-1926, October 1926. .3 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Flame proof air break circuit breakers for Voltages Not Exceeding 600Volts", C26-1926, October 1926. .4 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Totally Enclosed air-break Circuit Breakers for Voltages not exceeding 660 Volts" - C27 - 1926, September 1926. .5 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Totally Enclosed air-break Switches for Voltages not exceeding 660 Volts" - C28 - 1926, December 1926. .6 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Metallic Resistance Materials for Electrical Purposes" - C29-1926, November 1926. .7 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Face Plate controllers and resistances for use therewith Electric Motors (DC and AC Slip ring)" - C31-1926 - December 1926. .8 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Contactor Controllers and Resistances for use therewith Electric Motors (DC and AC Slip ring)" - C32-1926 - December 1926. .9 Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Industrial Electric Motors and Generators with class A insulation" - C34-1927, October 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .10 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Large Electric Generators and Motors - Rating permitting overloads" - C35-1927, April 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" trams, tramways, power station, standards, materials, electrical systems

.1 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Large Electric Generators and Motors - Continuous Maximum Rating" - C36-1927, May 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .2 - Book - 48 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electrical Performance of Alternators of the Steam Driven Type" - C38-1927 - December 1927 with a green label dated September 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .3 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Electricity Meters" C39-1927, August 1927. .4 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Pressboard for Electrical Purposes" - C40-1927, January 1927. .5 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Hard Drawn copper stranded circular conductors for overhead power transmission purposes" C41-1930, August 1927, with a green label dated October 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .6 - Book - 48 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "for Indicating Ammeters, Voltmeters, wattmeters, frequency and power factor meters" - C42-1927 - December 1927, with a green label dated October 1932 advised that the tentative standard has been endorsed as a Standard with amendment. .7 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Instrument Transformers" - C45-1928, June 1928. .8 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Liquid Starters for Electric Motors" C46-1927, December 1927. .9 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Star Delta switch starters for Electric Motors" C47-1927, December 1927. .10 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Multiple switch starters for Electric Motors" C48-1927, December 1927. On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" trams, tramways, power station, standards, materials, electrical systems

.1 - Book - 28 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Contactor Starters for Electric Motors" C49-1927, December 1927. .2 - Book - 56 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Dimensions of insulated annealed copper conductors for electric power and light including voltage tests" C50-1928, June 1928. .3 - Book - 36 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Vulcanised Fibre for Electrical Purposes" C51-1928, May 1928. .4 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Bus-bars and connections constructed of bare copper or aluminium" C52-1928, May 1928. .5 - Book - 16 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "Fixed Condensers for Radio Reception Purposes" - C53-1928, February 1928. .6 - Book - 32 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Graphic (Recording or chart recording) ammeters, voltmeters and wattmeters." C54-1928 March 1928. .7 - Book - 20 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard - "5-Amp two pin wall plugs and sockets for domestic purposes (without earthing connection)" C55-1928, August 1928, .8 - Book - 24 pages + grey covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Tentative Australian Standard "Electric Cable Soldering Sockets" C56-1929, March 1929. .9 - Book - 8 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Graphical Symbols and Schedule of Outlets for the Electrical Equipment of Buildings" C64 and 65-1935, October 1935. .10 - Book - 24 pages + brown covers, side stapled, issued by the Australian Commonwealth Engineering Standards Association, Australian Standard "Porcelain Insulators for overhead powerlines and outdoor switching Structures" C67-1939, August 1939. On top right hand corner has the date stamp of the "The Electric Supply Co. of Victoria Ltd Ballarat" for items .1 to .8, SEC stamp on .10. trams, tramways, power station, standards, materials, electrical systems