Document ID: chunk:federal_register_of_legislation:F2022L00967:reg:2027:p3
Version: federal_register_of_legislation:F2022L00967
Segment Type: reg
Provision Reference: reg 2027 (pt 3/7)
Character Range: 136543–140388

the landward side there may be blank panels in place of glass, or other opaque construction. Types of lantern glazing include: flat and curved trapezoidal panes and curved diamond/triangular panes.

Lantern roof –           roof of the lantern. Usually made of copper sheeting over a framework of rafters.

Lens assembly –          transparent optically refracting element of glass. The surface is usually spherical in form.

Light source –           electric lamps and LEDs now illuminate most lighthouses.

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

Lightstation –           precinct containing a lighthouse structure and related buildings (for example, keepers cottages, signal house, store room).

O

Order –                  shorthand expression of the size of an optical apparatus or lantern. At the time the system of orders was established, when kerosene burners were used, longer range lights needed larger burners, and larger burners needed lens assemblies of longer focal length to ensure a sharply defined beam. Thus in turn the lantern rooms were required to be larger to house these lens assemblies. AMSA's historic lantern rooms range from 1st to 4th order.

P

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. Cape Wickham current light details

CAPE WICKHAM LIGHT - TAS
(Est. 1861, 1946 Original Lens replaced)

IALA AVAILABILITY
CATEGORY:            2

PERFORMANCE
CRITERIA
(AVAILABILITY):      99%

POSITION:            Latitude:                                        39 35.3060' S
                     Longitude:                                       143 56.5830' E
                     Datum:                                           WGS 84

BA LIST OF LIGHTS:   K 2186
DAYMARK:             White round stone tower and lantern

HEIGHT OF DAYMARK:   48 metres
COLOUR OF LIGHT:     White

CHARACTER:           Fl(2)                                            10.00 seconds
                     Flash:                                           0.44 seconds
                     Short Eclipse:                                   2.90 seconds
                     Long Eclipse:                                    6.22 seconds

ARC OF VISILIBILTY:                  031 - 294 (263)
                     TRUE BEARINGS FROM SEAWARD

LENS:                Chance Bros 250 mm focal radius

LENS SPEED:          One revolution every 30 seconds (2 RPM)

LIGHT SOURCE:        LED Array Sealite SL324

LANTERN:             13'0" dia. H. Wilkins & Co.

STRUCTURE:           White stone tower, 40 metres to base of lantern

ELEVATION:           85 metres

RANGE:               Nominal:                                         21 nautical miles
                     Geographical:                                    23.3 nautical miles

Appendix 4. Table demonstrating compliance with the EPBC Regulations
Environment Protection and Biodiversity Conservation Regulations 2000 (Cth) Schedule 7A – Management Plans for Commonwealth Heritage Places
Legislation                                                                                                                                                     Satisfied within
A management plan must:
(a) Establish objectives for the identification, protection, conservation, presentation and transmission of the Commonwealth heritage values