Computer cable
- cpfl:
This product is suitable for electrical computer and automation connection cables with rated voltage…
Description
| This product is suitable for electrical computer and automation connection cables with rated voltage of 500V and below, which require high anti-interference. The insulation of cable ground core is k-type B low density polyethylene with oxidation resistance. The insulation resistance of polyethylene is high, the voltage resistance is good, the dielectric coefficient is small and the influence of dielectric loss temperature and variable frequency is small, not only can meet the requirement of transmission performance, but also can ensure the service life of the cable. In order to reduce mutual crosstalk and external interference between loops, the cable adopts shielding structure. The requirement of cable shielding is to adopt the following methods according to different occasions: wringing combination shielding, wringing combination forming total shielding of cable, total shielding after wringing combination shielding, etc. Shielding materials are round copper wire, copper tape, aluminum tape/plastic composite tape three kinds. The shielding pair and the shielding pair have good insulation performance. If the potential difference between the shielding pair and the shielding pair occurs during the use of the cable, the transmission quality of the signal will not be affected. Type, name and range of cable |
Type no. | The name says | Using range |
DJYVP | Polythene insulated pair of stranded copper wire braided total shielded polyvinyl chloride sheathed computer cable | Fixed laying indoors, in cable ditches or in pipes |
DJYVP2 | Polythene insulated pair of twisted copper tape total shielded polyvinyl chloride sheathed computer cables | |
DJYVP3 | Polyethylene insulated pair of wrought-aluminum-plastic composite tape total shielded PVC sheathed computer cable | |
DJYPV | Polyethylene insulated pair of stranded copper wire braided separately shielded PVC sheathed computer cable | |
DJYP2V | Polyethylene insulated pair of stranded copper tape separately shielded PVC sheathed computer cable | |
DJYP3V | Polyethylene insulated pair of stranded aluminum-plastic composite tape separately shielded PVC sheathed computer cable | |
DJYPVP | Polythene insulated pair of copper wire sheathed and polyvinyl chloride sheathed computer cables | |
DJYP2VP2 | Polythene insulated pair of twisted copper tape separate shield and total shield PVC sheathed computer cable | |
DJYP3VP3 | Polythene insulated pair of polyvinyl chloride sheathed computer cables with separate shielding and total shielding | |
DJYVPR | Polythene insulated pair of stranded copper wire braided polyvinyl chloride sheathed computer soft cable | Suitable for occasions requiring frequent movement or softness |
DJYVP2R | Polythene insulated pair of twisted copper tape total shielded PVC sheathed computer soft cable | |
DJYVP3R | Polyethylene insulated pair of stranded aluminum-plastic composite tape total shielded PVC sheathed computer soft cable | |
DJYPVR | Polyethylene insulated pair - stranded copper wire braided separately shielded PVC sheathed computer soft cable | |
DJYP2VR | Polyethylene insulated pair of twisted copper tape separately shielded PVC sheathed computer soft cable | |
DJYP3VR | Polythene insulated pair of polyvinyl chloride sheathed computer flexible cable with separate shielding of wraparound aluminum-plastic composite tape | |
DJYPVPR | Polythene insulated pair of copper wire braid subshield and total shield PVC sheathed computer soft cable | |
DJYP2VP2R | Polythene insulated pair of twisted copper tape subshield and total shield PVC sheathed computer soft cable | |
DJYP3VP3R | Polythene insulated flexible cable for computer with polyvinyl chloride sheathed in total and separate shielding for aluminum plastic compound tape | |
DJYVP22 | Polythene insulated pair of stranded copper wire braided main screen sheathed PVC sheathed computer cable | Directly buried installation |
DJYVP2-22 | Polythene insulated pair of copper tape sheathed PVC sheathed computer cable | |
DJYVP3-22 | Polyethylene insulated pair of sheathed polyvinyl chloride sheathed computer cables with aluminum - plastic composite tape | |
DJYPVP22 | Polythene insulated pair of copper wire braid separate shield and total screen cover steel tape armored PVC sheathed computer soft cable | |
DJYP2VP2-22 | Polythene insulated pair of copper strip split shield and total screen shield steel tape armored PVC sheathed computer cable | |
DJYP3VP3-22 | Polythene insulated pair of sheathed aluminum - plastic composite tape and total screen shield steel tape armored PVC sheathed computer soft cable | |
| DJYP3VP3-32 | Crosslinked polyethylene insulated pair of stranded aluminum-plastic composite tape separate shield and total shield phosphating fine steel wire armored PVC sheathed computer soft cable | Directly buried installation |
| DJYP3VP3-92. | Crosslinked polyethylene insulated pair of stranded aluminum-plastic composite tape separate shield and total shield fine wire braided PVC sheathed computer soft cable | Fixed laying indoors, in cable ditches or in pipes |
| NH - DJYP3VP3-32 | The copper conductor is covered with refractory mica tape, and the crosslinked polyethylene is insulated against the stranded aluminum-plastic composite tape | Directly buried installation |
| NH - DJYP3VP3-92 | The copper conductor is covered with refractory mica tape, and the crosslinked polyethylene is insulated against the twisted aluminum-plastic composite tape | Fixed laying indoors, in cable ditches or in pipes |
Iii. Scope of production
Type no. | Nominal section (mm2) | The number of |
DJYVP, DJYVP2, DJYVP3, DJVPV, DJYP2V, DJYP3V DJYPVP, DJYP2VP2, DJYP3VP3, DJYVPR, DJYVP2R, DJYVP3R DJYPVR, DJYP2VR, DJYP3VR, DJYPVPR, DJYP2VP2R DJYP3VP3R | 0.50, 0.75, 1.0, 1.50, 2.5, | 1-24 |
DJYVP22, djyvp2-22, djyvp3-22 DJYPVP22, djyp2vp2-22, djyp3vp3-22 | 0.50, 0.75, 1.0, 1.50, 2.5, | 4-37 |
Electronic computer cable structure
Nominal cross section (was) | Conductor structure | 20 ℃ conductor resistance (Ω/Km) | Insulation thickness (mm) | Spark test The test voltage (V) | Work communication Test voltage (V) | ||
species | Root number/line diameter (mm) | Don't tin plating | Tin plating | ||||
0.50 | 1 | 1/0.8 | 36.0 | 36.7 | 0.60 | 6000 | 2000 |
0.50 | 2 | 7/0.30 | 36.0 | 36.7 | |||
0.50 | 3 | 16/0.20 | 39.0 | 40.1 | |||
0.75 | 1 | 1/0.97 | 24.5 | 24.8 | 0.60 | ||
0.75 | 2 | 7/0.37 | 24.5 | 24.8 | |||
0.75 | 3 | 24/0.20 | 26.0 | 26.7 | |||
1.00 | 1 | 1/1.13 | 18.1 | 18.2 | 0.7 | ||
1.00 | 2 | 7/0.43 | 18.1 | 18.2 | |||
1.00 | 3 | 32/0.20 | 19.5 | 20.0 | |||
1.50 | 1 | 1/1.38 | 12.1 | 12.2 | 0.7 | ||
1.50 | 2 | 7/0.52 | 12.1 | 12.2 | |||
1.50 | 3 | 30/0.25 | 13.3 | 13.7 | |||
2.5 | 1 | 1/1.78 | 7.41 | 7.56 | 0.7 | ||
2.5 | 2 | 7/0.68 | 7.41 | 7.56 | |||
2.5 | 3 | 49/0.26 | 7.98 | 8.21 | |||
| Rated voltage (U0/U): 300/500v long-term operating temperature: 70℃ ambient temperature: fixed laying -40℃, non-fixed laying -15℃ *** small bending radius: No armoured layer should be less than 6 times of cable diameter, with armoured layer of the cable should be not less than 12 times of overall diameter at 20 ℃ with stable dc 500 v voltage test charge 1 min after the insulation resistance shall be not less than 2500 m Ω · Km stranded between each pair shielding and the shielding and the shielded cable should be constantly road between the line between core and wire core and shielding should be subjected to 50 hz, 2000 v ac voltage test not breakdown 5 min |
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