Cable Sample - Submarine Telegraph, Intermediate, Date Unknown Object Reg. No: ST 009074

Section of an intermediate submarine telegraph cable. The central conductor is surrounded by insulation, brass tape , more insulation, armouring wires, and an outer protective covering.

Intermediate cable was inserted between the less-protected and lighter deep-sea cable and the more heavily protected shore-end cable.
The central conductor is a strand of 7 copper wires. It is insulated with gutta percha or vulcanized rubber and protected by a wrapping of brass tape. The brass is covered with more insulation and wrapped with armouring wires. The armouring wires are covered by an outer protective coating.
Acquisition Information:
Donation from Australia: Post Master General's Department (PMG), 1916
Discipline: Technology
Dimensions: 250 mm (Length), 39 mm (Diameter)

More information

Tagged with: submarine cables, telegraphy
Themes this item is part of: Australia and the global telegraph network 1854-1902, Telegraphy Collection, Information & Communication Collection
Primary Classification: COMMUNICATIONS
Secondary Classification: Telegraphy
Tertiary Classification: connectors

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