DJYVP2/DJYVP3/DJYPVP/DJYP2VP2 instrument cable

DJYVP2/DJYVP3/DJYPVP/DJYP2VP2 computer instrument cable play an important role in computer networks, instrument connections and places with high fire safety requirements. They have different structures and characteristics and can be selected and applied according to specific needs. The product is suitable for connecting electronic computers, testing instruments, and control system instruments with high anti-interference performance requirements, and for analog data transmission lines with high anti-interference performance.
DJYVP2/DJYVP3/DJYPVP/DJYP2VP2 computer instrument cable are common computer instrument cables, which play an important role in computer networks and instrument connections. Here is a brief introduction to them:
DJYVP2/DJYVP3
Structure: Multi-stranded bare copper wire as conductor, PVC insulation, P2 copper tape shielding + drain wire shielding, P3 aluminum-plastic composite tape + drain wire shielding, PVC sheath.
ZR-DJYPVP shielded screen instrument cable Structure: Multiple strands of bare copper wire as conductor, PVC insulation, copper wire braiding for separate shielding, copper wire braiding for overall shielding, and PVC sheath.
DJYP2VP2
Structure: Multi-strand bare copper wire as conductor, PVC insulation, copper-plastic composite foil separate shielding and total shielding, PVC sheath.
DJYVP2/DJYVP3/DJYPVP/DJYP2VP2 computer instrument cable Features:
1. The wire core insulation material is made of PE plastic, XLPE plastic or PVC plastic with excellent anti-oxidation and anti-aging properties. It has good insulation performance, withstands voltage, has small dielectric coefficient and dielectric loss, is little affected by temperature and frequency, and can meet the transmission performance. The normal service life of the cable is long.
2. In order to reduce the mutual crosstalk and external interference of signals between lines, cables mostly adopt shielded structures. Different use cases and requirements require different shielding methods, including group shielding, total shielding after cable formation, or group shielding and total shielding after cable formation. There are also three types of shielding materials: copper wire (P), copper tape (P2), and aluminum-plastic composite tape (P3).
3. There is good insulation performance between shields. If there is a potential difference between the shields of the cable, it will not affect the transmission and quality of the data signal.
4. The long-term allowable working temperature of polyethylene insulated and polyvinyl chloride insulated cables is no more than 70°C, and the long-term allowable working temperature of XLPE insulated cable is no more than 90°C.
5. The temperature during cable laying should not be lower than 0℃. If it is lower than this temperature, it should be preheated.
6 Cable laying bending radius:
——Unarmored and unshielded cables and flexible cables with shielded structure should be no less than 6 times the outer diameter of the cable;
——Cables with armored or copper tape shielding structure should be no less than 12 times the outer diameter of the cable;
7. The conductors of cables for fixed installation shall adopt the first type circular solid conductor or the second type circular stranded conductor of GB/T3956-1997;
The conductor of the flexible cable for mobile laying uses the fifth type of soft circular stranded conductor of GB/T3956-1997.
8 AC withstand voltage test:
——AC voltage of 1500V is applied between the wire cores for 1 minute, and the cable does not break down;
——Apply an AC voltage of 1000V between the wire core and the shield for 1 minute, and the cable will not break down;
——Apply an AC voltage of 500V between the core + shield and armor for 1 minute, and the cable will not break down.
9Insulation resistance:
——Insulation resistance between wire cores and between wire cores and shielding. At 20°C, the insulation resistance of XLPE, PE, fluoroplastic and other insulated cables should not be less than 1000MΩ.km, and that of PVC and silicone rubber insulated cables should not be less than 25MΩ.km. .
——The insulation resistance between group shields, group shields and total shields should not be less than 1MΩ.km at 20°C.
10. If the product has combustion characteristics requirements, it should comply with the "General Rules for Flame-Retardant and Fire-Resistant Wires and Cables" IEC60332.

DJYVP2/DJYVP3/DJYPVP/DJYP2VP2 computer instrument cable name and common type

DJYVP2/DJYVP3/DJYPVP/DJYP2VP2 computer instrument cable is suitable for places with high fire safety requirements and provides better anti-interference ability. It is also used for data transmission in computer networks, such as LAN, WAN, etc., and can also be used for instrument connection.