JOINT DESIGN

The generic joint was designed to meet the key design requirements of reliability, ease of assembly using minimal specialist equipment, versatility and cost effectiveness. A-2-Sea Solutions is developing new variants, with the ultimate aim of making the joint compatible with any optical land or sea cable, whether in powered or unpowered systems. 

Features of the variants developed to date include:
Proven compatibility with over 30 different cable designs.
Use as a junction to linking two land cables to one marine cable (or vice versa)
Connection to in-line power filters.
Separate optical and power cables connected at the Beach Joint. 

Across the world several hundred units are now in service, with no reported faults. This reliability is achieved by extensive testing during development. The design has exceeded the requirements of a test programme designed to simulate worst case installation and operational conditions, which is summarised below: 


MECHANICAL / ENVIRONMENTAL TESTS WITH OPTICAL MONITORING 
Tensile
Torsion
Temperature Cycling
Vibration
Flexural
Impact
Dissection 

ELECTRICAL TESTS 
High Voltage (DC) Ageing
Partial Discharge Characterisation 
High Voltage Tests after Assembly in Humid Conditions.