Computer cables are cables for electrical equipment. This cable is suitable for rated voltage500Vand below for electronic computers and automated instruments that require high anti-interference performance. According to the usage requirements of different environments and equipment, cable insulation can be made of polyethylene, Polyvinyl chloride, Cross-linked polyethylene、Fluoroplastic, Silicone rubber and other materials.
Product rated voltage:300/500V
Execution standards
TICW/06-2009 Computer and instrument cable< /span>
JB/T 13486-2018 Computer and instrument shielding Cable
The minimum ambient temperature when laying conventional computer cables is0 ℃ [1]< /sup> .
CableMaximum long-term operating temperature:
|
Insulating material name |
Maximum allowed operating temperature （℃） |
|
Polyvinyl chloride |
70 |
|
Polyethylene |
70 |
|
Cross-linked polyethylene |
90 |
|
Polyolefin material |
90, 105, 125, 150 |
|
Silicone rubber |
180 |
|
Fluoroplastic |
200 |
Minimum bending radius: The unarmored structure should be no less than the outer diameter of the cable6 times, the armored or copper tape shielded structure should be no less than the outer diameter of the cable computer cable12 times.
At20℃Use DC500VVoltage test stable charging1minThe rear insulation resistance should comply with:
|
Insulating materials |
Minimum insulation resistance MΩ·km |
|
Polyethylene, cross-linked polyethylene, fluoroplastics |
3000 |
|
Polyvinyl chloride, silicone rubber |
25 |
There should be no circuit between each pair of shields and between the pair shields and the total shield
The cable should withstand the resistance between the wire core and the wire core and between the wire core and the shield or other metal layer50Hz, AC voltage2000V/1minor1500V/5minNo breakdown.
Polyethylene has high insulation resistance, good withstand voltage, small dielectric coefficient and small dielectric loss, which is also affected by temperature and frequency of conversion. It can not only meet the transmission performance requirements and can ensure the service life of the cable.
In order to reduce mutual crosstalk and external interference between loops, the cable must adopt a shielded structure. Shielding materials include tinned or non-tinned copper wires, copper strips, copper-plastic composite strips, aluminum-plastic composite strips, etc. The metal strips are produced by wrapping, and the overlap rate should usually be no less than 15%, but specific standards have special regulations, such as span>TICW/06Requires shielding metal tape The coverage rate should not be less than 25%; The metal wire is produced by braiding, and the braiding coverage rate should not be less than 80%, if there are higher requirements against interference, the coverage rate may not be less than 90% span>.
The shielding requirements of cables are adopted according to different occasions: separate shielding (only the twisted pair group has shielding, every twisted pair group has it), total shielding (The cable only has a layer of general shielding after the cable core is cabled), sub-shielding+Total shielding (including both the above structures). According to the higher requirements of users and usage occasions, the total shielding structure can adopt a composite shielding method, which includes two layers of shielding and is wrapped by metal tape+Made of metal wire braiding.
|
Model |
Name |
Use occasions |
|
DJYPV |
Polyethylene insulated twisted pair copper wire braided shielded PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYVP |
Polyethylene insulated twisted pair copper wire braided total shielded PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYPVP |
Polyethylene insulated twisted pair copper wire braided separate shielding and total shielding PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP2V |
Polyethylene insulated twisted pair copper tape separately shielded PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYVP2 |
PE insulated twisted pair copper tape overall shielded PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP2VP2 |
Polyethylene insulated twisted pair copper tape separate shielding and total shielding PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP3V |
Polyethylene insulated twisted pair aluminum-plastic composite tape separately shielded PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYVP3 |
Polyethylene insulated twisted pair aluminum-plastic composite tape overall shielded PVC sheathed computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP3VP3 |
Polyethylene insulated twisted pair aluminum-plastic composite tape with separate shielding and total shielding PVC sheathed computer cable< span style="font-family:宋体;color:#333333;font-size:9.0000pt;"> |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYPVR |
Polyethylene insulated twisted pair copper wire braided and shielded PVC sheathed computer cable with soft sheath |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYVPR |
Polyethylene insulated twisted pair copper wire braided overall shield PVC sheathed computer cable with soft sheath |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYPVPR |
Polyethylene insulated twisted pair copper wire braided sub-shielding and total shielding PVC sheathed soft computer cable< span style="font-family:宋体;color:#333333;font-size:9.0000pt;"> |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP2VR |
Polyethylene insulated twisted pair copper tape separately shielded PVC sheathed flexible computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYVP2R |
PE insulated twisted pair copper tape overall shielded PVC sheathed soft computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP2VP2R |
Polyethylene insulated twisted pair copper tape separately shielded and overall shielded PVC sheathed soft computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP3VR |
Polyethylene insulated twisted pair aluminum-plastic composite tape separately shielded PVC sheathed soft computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYVP3R |
Polyethylene insulated twisted pair aluminum-plastic composite tape overall shielded PVC sheathed soft computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYP3VP3R |
Polyethylene insulated twisted pair aluminum-plastic composite tape with separate shielding and total shielding PVC sheathed soft computer cable |
Indoor laying, cable trenches, pipelines and other occasions requiring electrostatic shielding |
|
DJYPV22 |
Polyethylene insulated twisted pair copper wire braided shielded PVC sheathed steel tape armored computer cable< span style="font-family:宋体;color:#333333;font-size:9.0000pt;"> |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYVP22 |
PE insulated twisted pair copper wire braided total shielded PVC sheathed steel tape armored computer cable< span style="font-family:宋体;color:#333333;font-size:9.0000pt;"> |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYPVP22 |
Polyethylene insulated twisted pair copper wire braided separate shielding and total shielding PVC sheathed steel tape armored computer cable |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYP2V22 |
Polyethylene insulated twisted pair copper tape separately shielded PVC sheathed steel computer cable armored |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYVP2－22 |
Polyethylene insulated twisted copper tape overall shield PVC sheathed steel computer cable armored |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYP2VP2－22 |
Polyethylene insulated twisted pair copper tape separate shielding and total shielding PVC sheathed steel tape armored computer cable |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYP3V22 |
Polyethylene insulated twisted pair aluminum-plastic composite tape separately shielded PVC sheathed steel tape armored computer cable |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYVP3－22 |
Polyethylene insulated twisted pair aluminum-plastic composite tape overall shielding PVC sheathed steel tape armored computer cable |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |
|
DJYP3VP3－22 |
Polyethylene insulated twisted pair aluminum-plastic composite tape with separate shielding and total shielding PVC sheathed steel tape armored computer cable< /span> |
Indoor laying, cable trenches, pipelines, etc. require electrostatic shielding and large mechanical external force fixation and withstand |