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Electronic computer shielded cable
Product features and uses: Used for signal transmission and connection of detection instruments, meters, etc. in power generation, metallurgy, petroch
Product details
Product features and uses:
Multiple pairs of shielded cables are used for signal transmission and connection of detection instruments and meters in distributed systems, electronic computer systems, automation systems, and other industrial and mining enterprises such as power generation, metallurgy, and petrochemicals.
Usage characteristics:
Working temperature: For general models, the temperature should not exceed 70 ℃, and for models with 105, the maximum temperature should not exceed 105 ℃.
Minimum ambient temperature: Fixed installation -40 ℃ Non fixed installation -15 ℃
Rated voltage Uo/U: 300/500V
Minimum bending radius: For unarmored cables, it should not be less than 6 times the outer diameter of the cable
Armored cables should not be less than 12 times the outer diameter of the cable
Main technical indicators:
| Performance project | unit | TECHNICAL INDEX | ||
| Polyethylene insulation | PVC insulation | |||
| Insulation resistance at 20 ℃ | Between any pair of conductors | MΩ· km | 500 | 25 |
| Line to shield room | 1 | 1 | ||
| Working capacitor（1kHz） | Type 3 | pF/m | 75 | 200 |
| 1 and 2 | 90 | |||
| Unbalanced capacitance（1kHz） | pF/M | 1 | / | |
| Inductance resistance ratio | section | μh/Ω | 20 20 25 35 |
20 20 25 35 |
|
0.5mm2 |
||||
| Shielding suppression coefficient ≤ | 0.01 | 0.01 | ||
| testing voltage | V/1min | 1000 | 1000 | |
| Flame retardancy | Meets the requirements of 12666-90 | Meets the requirements of 12666-90 | ||
Model Description
| project | code | describe |
| Flame retardant code | / ZR ZRA ZRB ZRC |
Non flame retardant can be omitted Flame retardant A-level flame retardant B-class flame retardant C-grade flame retardant |
| Series code | DJ | For electronic computers (including DCS systems) and electric instruments |
| Insulation material | Y V D W |
polyethylene polyvinyl chloride Low smoke and low halogen polyvinyl chloride Low smoke halogen-free chlorinated olefin |
| Shielding material | P P1 P2 P3 |
Copper wire weaving Tin plated copper wire weaving Copper/polyester composite film Aluminum/polyester composite film |
| sheathing material | Y V D W |
Light and heat resistant polyethylene polyvinyl chloride Low smoke and low halogen polyethylene Low smoke halogen-free polyolefin |
| armoring material | 22 | Steel belt armor |
| Type of conductor | A B R |
Single stranded conductor Seven stranded conductor Multi strand soft conductor |
| specifications | Fill in the logarithm x (number of unit cores x conductor cross-section) Logarithms N: 1, 2, 3 nineteen Unit core count n: 2, 3 Conductor cross-section S: 0.5, 0.75, 1.0, 1.5 (mm2) |
Electromagnetic flowmeter K-type thermocouple thermal resistance bimetallic thermometer pressure transmitter flow transmitterSignal cables for electronic computers
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