Telemetry Cable

1.

Component

3TP, 4GP,2 COM,1P ,1 strengthen line

2.

Operating temperature range

-45 deg.a to+70deg.c

3.

Storage temperature range

-55 deg.a to+85deg.c

4.

Flexibility

A circular loop 12 cm inner diameter will be Squash by at least 1.05cm when submitted to a radical force of 5 N.

5.

Cylindricity

The maximum difference between any diameters measured on any section of 50mm in length do not exceed 0.3mm

6.

Maximum diameter

10.6+/-0.1mm

7.

Outer Jacket material

Polyurethane (PU)

8.

Jacket thickness MIN

1.3mm

9.

Max length

330m

10.

Colour

TBD(Orange,Blue,Orange red)

11.

Anti-draught Strength

1130 N

12.

Water proof

NO

Transmission Pairs

3 Pairs

13.

Attenuation

<10.0dB/100m 10MHz

14.

Impedance measured on 100m

120+/-10OHMS

15.

Conductor

7/0.16Strand copper

16.

Diameter of insulation

1.14(±0.02) mm

17.

Near-end Cross talk from 2 to 8 MHz measured on 100m

>56dB

18.

Geophone pairs

19.

Conductor and Min Cross section

7/0.16mm Strand copper

20.

Diameter of insulation

0.8(±0.02) mm

21.

Far-end Cross talk At 100MHz measured on 100m

>100dB

22.

Resistance

<140Ohms/Km

23

COMMAND pairs

24

Conductor and Min Cross section

7/0.16mm Strand copper

25

Diameter of insulation

0.9(±0.02) mm

26

Resistance

<140Ohms/Km

27.

Cross section

41/0.25 copper

28.

Resistance on Power Pair

<11Ohms/km

29.

Diameter of insulation

3.0mm±0.1

30.

Take-outs connect type

Water proof connection with KCK-2M

31.

NO. of take-out

TBD(6T,3T)

32.

Type of take-out

Pig tail type KCK-2M

33.

Space of take out

55 m apart ant the nearest is 27.5 away from connector