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Cable Termination Unit 5941

The Tinsley 5941 CTU is the ideal termination unit for non-repeatered submarine cables. It offers a simple method of selecting an open or short circuit condition and a safe means of discharging the cable. The unit is designed to enable the Test Engineer to safely and simply connect other Tinsley test instruments to the system for fault location and electroding.
 
The Tinsley 5941 CTU also incorporates a Cable Condition Monitor. Any changes in the Submarine Cable electrical characteristics are automatically detected and an alarm is triggered. An output from the alarm is also available for connection to outside devices.
 
The unit can be connected to the cable via a dedicated cable connected to the fibre optic cable metallic conductor. Alternatively, the fibre optic cable can be routed into the CTU with a direct path through the unit for the optical fibres. Options that can be set at the time of installation enable the unit to be used with a wide range of cable lengths and types.
 
Cable Termination Unit 5941

Specifications

See the table below for a run-down of this product's specifications.

Input Supply Voltage

36V to 60V DC

Maximum Supply Current

1.5A

Open Circuit Output Voltage (Input 48V)

-100V

Output Voltage Stability (max. load & supply variation)

± 1V

Short Circuit Current - Normal Drive

213 ± 13 mA

Short Circuit Current - Hard Drive

297 ± 35 mA

Alarm Level Range

-333 mA to + 333 mA

Alarm Level Stability (with load, supply and temperature variation)

± 2.5%

Alarm Contacts Rating

100V 0.5A DC

Maximum Allowable Cable Power

600V Peak Voltage
4A Current

Operating Temperature Range

0ºC to 40ºC
 

Surge Arrestor Rating

Max. Surge Current

20kA

DC Spark Over Voltage

700V

Impulse Spark Over Voltage

1400V