Computer Shielding Cable (Cable for DSC System)

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It is used as connection cable of inspection devices and instruments with high demand on interference resistant performance in computer network and control system.
Executive standard:
Q/TK.J.04.030-2004 or BS5308 standard for reference
Performance for Usage:
1. AC rated voltage U0/U: 300/500V. Long term working temperature of cable conductor is 70℃ & 105℃ for cable with PVC insulation, 70℃ for cable with PE insulation and 90℃ for cable with XLPE insulation.(XLPE insulation includes silane XLPE & irradiation XLPE insulation.)
2. Min. environment temperature is -40℃ for fixed laying and -15℃ for non-fixed laying. Environment temperature shall be no less than 0℃ for installing.
3. Min. bending radius allowed by cable is no less than 6 times that of cable OD for non-armored soft cable or braided shielding cable and 12 times that of cable OD for cable with metallic tape wrapped shielding or steel wire/steel tape armor.
Type, Description and Definition
Example: DJYP3VP3-32
32: Steel wire winding armor PVC outer sheath
P3: Aluminum-plastic compound tape wrapped general shielding 
V: PVC inner sheath
P3: Aluminum-plastic compound tape wrapped individual shielding
Y: PE insulation
DJ: Series number of computer cable
Main Technical Parameter

  1. DC Resistance of Conductor at 20℃

Nominal cross section area (mm2)

Pieces of conductor/diameter of single piece

DC resistance of conductor at 20℃

A

B

C

A, B

R

0.5

1/0.80

7/0.30

16/0.20

≤36.0

≤39.0

0.75

1/0.97

7/0.37

24/0.20

≤24.5

≤26.0

1.0

1/1.13

7/0.43

32/0.20

≤18.1

≤19.5

1.5

1/1.38

7/0.52

30/0.25

≤12.1

≤13.3

2.5

1/1.78

7/0.68

49/0.25

≤7.41

≤7.98

2. Insulation Resistance at 20℃


Performance item

PVC insulation

PE, XLPE insulation

Insulation resistance at 20℃

≥25

≥500

3. Cable shall endure A.C. voltage test of 2000V under power frequency for 1min without puncture of insulation. And testing temperature is environment temperature.