DJYPVP cable is a shielded computer cable, standing for polyethylene-insulated twisted-pair copper wire braided shielded and overall shielded PVC-sheathed computer cable. Below, we'll explain what DJYPVP cable is, including its specifications and images, and the differences between DJYPVP and DJYPVRP.
1. What is DJYPVP cable?
The long-term operating temperature of DJYPVP cable conductors is as follows: PVC is available in two types: 70°C and 105°C; polyethylene insulation is rated at 70°C; and cross-linked PVC insulation is rated at 90°C. The cable can be used in fixed installations within an ambient temperature range of -40°C to 50°C, and the installation environment should not drop below 0°C. For copper-tape shielded cables, the bending radius should be no less than 12 times the cable's outer diameter. For other cables, the bending radius should be no less than 6 times the cable's outer diameter.
DJYPVP designation (DJYPVP2x2x1.0):
D—Computer cable
J—Twisted pair
Y—Polyethylene insulation
P—Shield (here, refers to the copper wire shield on each pair).
V—PVC jacket
p—Shield (overall shield, copper wire). For example, P2 indicates copper tape shield.
The first 2 indicates two pairs.
The last 2 indicates the number of cores per pair.
The 1.0 indicates the cross-sectional area of each core.
II. DJYPVP Cable Characteristics:
1. Operating Temperature: Generally not exceeding 70°C. Low ambient temperature: -40°C for fixed installations. Non-fixed installation: -15°C
2. General flame retardancy complies with GB12666.2-90, and bundled flame retardancy complies with GB12666.5-90.
3. Rated voltage: U0/U: 300/500V
4. Minimum bending radius: For unarmored cables, the minimum bending radius should be no less than 10 times the cable's outer diameter; for armored cables, the minimum bending radius should be no less than 12 times the cable's outer diameter.
5. Product standard: Q/HHTZH002.4 (equivalent to British BS5308). Flame retardancy complies with GB12666-90.
IV. Differences between DJYPVP and DJYPVRP Cables
The multiple R's in DJYPVRP indicate a soft core conductor:
DJ: Computer cable designation
Y: Polyethylene insulation material designation
P: Copper wire braided shield; this position indicates phase-separated shielding
V: Polyvinyl chloride jacket material designation
R: Cable conductor uses Category 5 construction (flexible conductor)
P: Copper wire braided shield; this position indicates overall shielding (shielding is required after cable assembly).
Computer cables such as DJYPVP and DJYPVPR are suitable for electronic computers and automation applications with a rated voltage of 500V or below, requiring high interference resistance. The Cable Bao Cable Application Technology Research Institute states that the cable ground wire core insulation uses K-type B low-density polyethylene, which has oxidation-resistant properties. Polyethylene has high insulation resistance, good voltage resistance, low dielectric constant, and low dielectric loss, which is less affected by temperature and frequency. This not only meets transmission performance requirements but also ensures the cable's service life. To reduce crosstalk between circuits and external interference, the cable utilizes a shielded structure. Cable shielding requirements vary depending on the application, including combined shielding of twisted pairs, overall shielding of the twisted pair cable, and overall shielding after combined shielding of twisted pairs. Shielding materials include round copper wire, copper tape, and aluminum/plastic composite tape. Shielded pairs provide excellent insulation performance, and potential differences between shielded pairs during cable operation will not affect signal transmission quality.
