5901 Submarine Cable DC Test Set
The Test Set consists of four modules mounted in a standard 19 inch cabinet. 
It is designed for making D.C. measurements of resistance and capacitance of conventional repeatered coaxial submarine cable and repeatered fiber optic cable. 
Simplicity of operation without undue circuit complexity has been achieved

Facilities are provided for:

• Determination of conductor resistance

• Determination of insulation resistance

• Determination of cable capacitance 
  with or without leakage

• Location of insulation faults by the
  “fall of potential” method the
  “no loss of current” test

These facilities are selected by a rotary switch and sequential operation is by push button control.
The test voltage power supplies outputs are set by banks of rotary switches. 

A high performance digital voltmeter coupled to a printer unit is used to measure and record all required voltages during the testing sequence. 

A digital seconds counter facilitates the timing of individual stages in the procedure.

Specifications

Fundamental accuracy depends on the following components:

Current Controller Preset Values:

• Low: 2, 2.5, 3, 4 & 5 mA D.C.

• High: 4, 5, 6, 8 & 10 mA D.C.

Test Voltage Power Supply:

• Low: 0 to 200 Volts D.C.

• High: 0 to 300 Volts D.C.

N.B. The high voltage unit is only used when the two power supplies are connected in series for high current measurements of conductor resistance.

Mains input

Mains input is via terminals marked as below:

240V A.C., 200V A.C., 115V A.C., 0V A.C. Please state mains frequency when ordering.

Connections to the submarine cable are made on the top of the cabinet to 2 by 6mm diameter insulated terminal posts. Red for line and black for return.