Geophone Geophysical Cable , high sensitivity I / O - II 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.

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

10.60.1mm

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

12010OHMS

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