Document ID: chunk:federal_register_of_legislation:F2020L01271:reg:7:p13
Version: federal_register_of_legislation:F2020L01271
Segment Type: reg
Provision Reference: reg 7 (pt 13/16)
Character Range: 185325–188976

in form.

Light source
 Electric lamps and LEDs now illuminate most
 lighthouses.

Lighthouse
 The principal structure of a lightstation, generally made up of a lantern, balcony and tower.

Lightstation
 A precinct containing a lighthouse structure and other related buildings, for example, Keepers' cottages, Store room, Signal house.

 M

Mercury  float mechanism
 A mechanism whereby the base of a lighthouse's lens is submerged in a mercury-filled bath and is then rotated without friction.

 P

Pavilion
 A building or similar structure built for a specific purpose. Cape Byron Lighthouse's pavilion is located around the base of the tower.

Pedestal
 Part of the optical apparatus, consisting of a metal column or base standing on the balcony floor inside

 the lantern and supporting the lens assembly and light source. Some later Chance documentation (such as their tariffs 1908) also refer to the lantern base as a pedestal.

 T

Tower
 Structure to support the lantern at a sufficient height
 above the ground. The most common types are the masonry tower, timber-framed tower, cast iron tower, and lattice tower.

 Appendix 3. Current Cape Byron light details

 Cape Byron main light (AN347-01)

IALA AVAILABILITY CATEGORY:  2
POSITION:                    Latitude: 28° 38.3131' S
                             Longitude: 153° 38.1845' E Datum: WGS84
CHARTS:                      Aus 813, BA 1029
BA LIST OF LIGHTS:           K2838
DAYMARK:                     White round masonry tower and lantern with attached service rooms, 22 m high
COLOUR OF LIGHT:             White
CHARACTER:                   Flashing: 15.00 s
                             Flash: 0.03 s
                             Eclipse: 14.97 s
LENS:                        2 panel 920mm f.r. Dioptric/Catadioptric bivalve. Refer Drg.CN2-47
LENS SPEED:                  One revolution every 30 sec (2 RPM)
PEDESTAL:                    RP2B Twin motor/gearbox drive units
                             Motor: Oriental Motor Co Type 51K60RGU-CWE Gearbox: Oriental Motor Co Type 5GU120RAA Speed Control: Oriental Motor Co Type ESO2
LIGHTSOURCE:                 Lamp: LED Array Sealite SL324 Lantern Control SWBD: Sealite LED Controller Daylight Control Switch:              PE Cell CR Control
                                             Type L
LANTERN:                     Chance Bros. 1st Order 13'0" dia. with curved lantern panes. Refer DrgCN9-110
INTENSITY:                   2,060,353 cd
POWER SOURCE:                Mains Supply: 240V AC
                             Standby supply: 3KW 48Vdc to 230Vac single phase inverter Inverter: Outback Power Systems
                                             VFX3048
                             Battery capacity: 320Ah
                             Modules: 2 x (48V, 160Ah)
                                             Lantern Control
                             DC/DC Converter: Redarc V175D-12-48I 48 to 12V remote monitor

STRUCTURE:  White round masonry tower 13.5 metres from base to balcony.
ELEVATION:  118 m
RANGE:      Nominal: 27 Nm
            Geographical:   27 Nm

 Appendix 4. Opening of the Cape Byron Lightstation (1901)

                                               Figure 20a. Document detailing the opening of the Cape Byron light and signatures, 1901.

 Transcription

 The weather did not permit of the Premiers landing on Saturday the 30th.

 Cape Byron Lighthouse

 The above Lighthouse was Officially opened  and dedicated to the service of the Public by the
 Honourable John See Premier of the State of New South Wales on Saturday Sunday  the 30th