HJVV Bureau of symmetrical cable used in digital switching equipment
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m
- Supply Capability:
- 100000 m/month
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一、application scope
The cable is mainly used in digital switching equipment internal or short section of the connection between digital switching equipment, the highest 10 MHZ transmission frequency.Can also be used as an internal or and other digital devices between the short section of the connection.Can meet the digital switching system transmission of high bit rate digital signal.With smaller diameter, ease of installation and connection.
Product the YD/T 818-818 standard design and production.Its technical indicators fully meet the standard requirements.The structure stability of products reach the international similar products level.
二、cable type
Cable type by type and specification, it said the following:
HJVV
HJVVP
HPVV
HJCVV
三、cable construction
1, the conductor: the nominal diameter of 0.25 mm or Φ Φ single tin round copper wire 0.5 mm.
2, insulation: use PVC insulation, conductor chromatography using monochromatic or additive color ring.
Line 3, line to: to adopt the section from twisting synthesis of crosstalk in order to meet the strict requirements, and in accordance with the provisions of chromatography in order to easy to distinguish.
4, cable conductor: line to press with twisted into cable core type or unit type.Overlap with a layer of polyester film around the package.
5, block: cable can have cable shielding.According to user requirements cable can be blocked.Shielding have single plastic coated aluminum foil overlapping winding and shielding.Tin plating round copper wire textile block, or two methods at the same time use the shielding.
6, sheath: sheath for PVC plastic, color is gray.Or the color of the user requirements.
performance (20℃)
| No | Project | Unit | Standard | length；converted based on KM | ||
| 0.25mm | 0.5mm | |||||
| 1 | Single conductor dc resistance | Ω/km | ≤393.0 | ≤97.8 | measurement/L | |
| 2 | Insulation dielectric strength 1 min | V | AC 1000 DC 1400 | |||
| 3 | Each root insulated wires and the rest of the grounding and shielding of the insulation resistance between wire DC100 ~ 500 v | MΩ.km | +20℃ ≥500 +70℃ ≥1 | measurement×L | ||
| 4 | Shielded cable capacitance between core and shielding | nF/km | ≥50 | measurement/L | ||
| 5 | Near end crosstalk attenuation 1MHz 10MHz | dB/10m | ≥65 In study | ≥70 In study | ||
| 6 | The characteristic impedance 1MHz 10MHz | Ω | 105±15 97±15 | 95±15 90±15 | ||
| 7 | Natural attenuation 1MHz 10MHz | dB/km | ≤56 ≤130 | ≤32 ≤75 | Measurement/L | |
| 8 | delay 1MHz 10MHz | μs/km | ≤6.4 ≤5.7 | measurement/L | ||
| 9 | Wire disconnection, mixed line | - | Lines to keep, don't mix | |||
| 10 | Shielding continuity | - | continuous | |||
- Q: What is the difference between the power BV line and the power YJV cable?
- According to the provisions of GB-. pipes with a diameter of 15 mm can wear 3 BV-2.5 or 2 BV-4; and so on, 20 mm pipe, 3 * 4 or 4 * 2.5; 25 mm pipe, * 6 mm or 5 * 4; 32 mm tubing, wear 3 * 10 or 5 * 6; 40 mm tubing, wear 4 * 16 or 5 * 10; 50 mm tubing, wear 4 * 25 or 5 * 16 The The combination of the above, generally can be applied to all the current distribution lines of the way. As for the 35 square millimeters above the wire, the general use of cable laying, do not use PVC pipe, you can see the environment as a result of the application or wear pipe protection.
- Q: i want to run a power cable from my battery from under the hood to my trunk for a amp that i want to power. i have a 94 mercury cougar. and i have seen it done under the car and through the firewall into the cockpit, if i want to run it through the firewall which way do i put it through? can someone send me a link to a pictured instructions? or just tell me how? thanx
- if you run the power line in the cabin, run it on the opposite side of the RCA cables you are going to run from the deck to the amp. This will reduce any magnetic interference caused by current in the power line affecting the signal source.
- Q: I have my Clearwire modem but have lost the power cable. Does anyone know what I would look for in a replacement power cable.
- check the Clearwire URL .. Support tab
- Q: does anyone know a website that has like a chart with pictures of the different power supply connectors and where in the desktop computer they go all I know is the 24 pin goes to the motherboard and the 6 pin goes to my graphics card
- There are only a handful or so connectors on the modern ATX Power Supply. Pictures of the connectors or the adapters or extenders can be found in the manual for your motherboard (found in the manufacturer's website) or at online cable vendors (see link for one, below.) Sometimes an adapter or entender is needed due to the cables being too short - especially in the case where a new case has the power supply mounted on the bottom, rather than the top of the case.
- Q: I have a psu that has two slots for 8 pin power connectors. It only came with one 8 pin to 6+2 pin and one 8 pin to 6 pin power cable. I have a video card that needs 2 8 pin connectors and I need a cable that is 8 pin to 8 pin. I can't use 6-pin slots because I have used all of them. I have found extenders but no male to male cable. Any help?Thanks?
- Most people use a molex to 8 pin adapter. Link below.
- Q: SATA power connector? If so where can i buy one?
- Probably, but most people just buy Molex to SATA power adapters. If you need more Molex 4 pin plugs, just buy some Y splitters. Any computer store worth a darn should have some of both in stock, even the chain ones.
- Q: What is the difference between rubber insulation and paper insulated power cables?
- Because the AC operation will produce eddy current, will make the steel pipe and cable heat burned
- Q: I currently have a vibe amp wired in that my front speakers run off, im thinking about gettin an Edge sub with a built in amp so was wandering if id have to wire in a new power lead or if i could run them both of the one thats already running to the battery? Also how would i get rca cables running to each if i only have one output on my stereo? Thanks
- yes i used the same power wire and just split all my wires for my second amp and everything is fine but i made a new ground for it. it will work fine but make sure you have a good battery or its gonna die, i made sure i got a life time warrenty so i can just take them back and get a brand new one whenever it dies.
- Q: A network cable must cross a power cable. What can be done to minimize the amount of EMI?
- Metal shielding would be best. This could be as simple as wrapping each cable with aluminum foil near the cross-over point. Hope this helps.
- Q: I CAN'T AFFORD A NEW POWER SUPPLY CABLE/ADAPTER AT THE MOMENT.CAN SOMEONE HELP ME PLEASE.
- Handycam Camcorders do not draw power from USB. You need to purchase a replacement power supply cable. If you take the camcorder to a place like Best Buy or Radio Shack, you can likely get a new cable for very little money (although it won't be the official Sony cable).
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HJVV Bureau of symmetrical cable used in digital switching equipment
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m
- Supply Capability:
- 100000 m/month
OKorder Service Pledge
OKorder Financial Service
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