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
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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: There have been severe storms in my country Kenya and power lines have fallen and caused a lot of injuries, some fatal to pedestrians, motorists and others.I am sure if power lines were covered with rubber sheathing or some other apopropriatde material, there would be less likelihood of electrocution, serious injury, fire or property damage. I am a lay person in these matters so I am talking from what I have seen.Thanks in advance.
- Let's see... First of all ONLY high voltage power cables do not have protective polymer insulation. Low voltage cables, like the ones that bring outlet tension to homes do have an insulation, usually made of PVC, rubber, silicone and such. The large, 10000Volts, up to and over 200000 volts and so on do not for several reasons: 1. It would be impractical to make. For usual materials, like PVC the thickness of the insulation would be extreme (I think as thick as several centimeters) as to protect from such high voltages. Such insulations would make the cables break under their own weight. 2. The cables heat up really good under the enormous currents and voltages so the insulation plastic would be close to melting point all the time. 3. PVC is quite senzitive to weather curing. It becomes brittle and cracks if left under weather condition for several years so the insulation would still serve to no good. Furthermore, regulations regarding aerial wiring state that they should avoid crossing populated areas, roads, etc. unless absolutely necessary. Also, wires fallen on ground should definitely not be messed with. Furthermore, if high voltage cables were insulated, this would only serve ready made combustion materials for fires in case of short circuits and damages. I guess this takes care of your question...
- Q: The touch in Australia is too expensive so i want to buy one from overseas. Will I get a quality one from Bali (I have been there before) or would the USA be better quality wise? If i do get one from Bali can i change the language? also if i buy a Ipod Touch in the USA or Indonesia can I use a Ipod Touch power cable from Australia with it?
- well idk about quality, i mean they all SHOULD be the same, they are from the same company and they're pretty much the same thing...so idk about that, but USA is USUALLY a good choice. I think if u get one in Bali they should have it automatically set up to the language they speak, or else why would apple make them international if people can't even understand what they say? idk what you mean by power calble, however, the standard voltage in Australia may be more or less then USA. There are usually products that you can buy at best buy or any electronic store that allow you to plug you're ipod into a different countries plug so that you can charge it and it wont blow out just ask a representative at best buy ;)
- Q: I was wondering if it is possible to have flat power cables as i want to place my hdtv on the wall but don't want the power cable trailing down so that it looks like its levitating (i suppose anyway). I also want to do this for my mini hi-fi, as that is on a supporting wall and feeding wires through that is either not viable and/or out of my electrical range. I live in the UK, so would prefer a national company as opposed to foreign.
- Hi Allotted, The best thing to do is cut into the wall and run the cables down the inside. By the time you have power, DVD/VCR, cable connection and a dozen other things you have a huge bundle of cables. Cut a opening behind the TV and run the wires down the inside to the floor. Make an opening to bring them out there. I did mine like that and while it took some effort the results were a great looking installation. Norm
- Q: Does the ps4 and ps3 have the same power cable?
- Yes it does Adding to that, you need a TV with an hdmi port Also, the power cable doesn#x27;t come with a brick like the Xbox one does
- Q: Hifor the last days a strange thing happened. Every time I start my PC it say no video input and there is just black screen. The mouse and the keyboard is dead too. but every fan in the chase works. BUT when I unplug the power cable from the power supply and then plug it back again after 2 seconds the PC starts again without a problem. Anyone knows what is the thing that cause such a problem?THanks for the help!
- I would suggest a check of all the wires if you have no issue it might be due to the power supply.
- Q: i replaced my ps2 power ribbon cable with a slightly diffrent ribbon cable but it had all the connections just like the original one. i plugged in my ps and i heard that slight clicking sound of the electricity entering the ps2's cuircut such as it always has when it was working fine. but when i plug the ps2 in the lights on the power buttons wont come on and they havent come on no matter whitch way i turn the cable. i would really like to get back to KH2 bugt this is getting annoying. what is up with my ps2 that even though everything is connected i cant seem to get the power lights to come on. help!
- Maybe the black big rectangle in the connection to the wall thing is damaged, maybe you need a new one
- Q: just asking if its atleast 5 feet.
- The included cables are the standard 6' in length. There's nothing special about the PS3's power cord, so you can buy a longer one if you need it. The PS3 can also use standard HDMI and optical audio cables, so finding those in various lengths is easy. However if you need a longer PS3 AV cable (for composite, svideo or component video) you'll have to buy one online. They exist, or you can use a simple cable extension.
- Q: What kind of material does the power cable accessory contain?
- When the short circuit occurs when the wire through a large current, more than the rated current of the wire, so the wire will heat
- Q: I recently bought an asustek computer with a 350 watt PSU. Unfortunately, it did not come with a power supply cable. I have a quot;king-cord10 amp 125v 1250w cable numbered KC-003. Will this cord work to power my computer, is it too powerful, not powerful enough? I don't want to plug it in and over power it or somethig. Thanks for the help.
- The cable will make no difference, my friend. It will NOT be too powerful nor not powerful enough. It's just a connection from the power socket that you're going to place it in and your PSU (Power Supply Unit). Your PSU will still only push out a maximum of 350 Watts.
- Q: So I've been working on my computer aand looking to invest in a primary Hard Disk (instead of X2 250GB hard drives). I noticed the drive i have has Fantasy power outlets and newer models have SATA Power so I'm kind of confused on the Hard Drive i should get. I'm looking at hard drives 500GB-1TB
- Fantasy power outlets don't sound standard. SATA is consistent on both PCs and Macintosh computers.
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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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