Assembled prefabricated branch cable FZ-NHVV-3
- Ref Price:
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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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I. Characteristics of the cables
1. Using factory prefabrication methods can substantially reduce the site construction labor intensity and shorten the construction laying time;
2. Use of cables can guarantee great length and bending property, and greatly facilitates the construction in a complex place;
3. Use of cables reduces the laying space, and cables can be installed together with gas and hydraulic gas pipelines;
4. Their reliability and reliability can be fully guaranteed, for the cables are manufactured in the factory,
5. Sub-branch parts should use high strength sealed joints, which are waterproof and have properties of moisture protection, long-term maintenance and free for repair;
6. Because the cables are directly connected with households with no need of maintenance and repair and with easy and simple construction, the cables can produce significant comprehensive economic benefits.
II. Usage of the cables:
1. To be used for high-rise building;
2. To be used for disaster prevention equipments;
3. To be used for tunnel lighting and disaster prevention equipments;
4. To replace copper bus bar with small or medium capacity in various places.
III. Standards of the cables
IEC 60502 Rated Voltage 1 ~ 30KV extruded insulated power cables and accessories (International Electrotechnical Commission standards)
GB 12706 Rated voltage 35KV and below Copper core, Aluminum core plastic insulated power cable (National Standard of the People's Republic of China)
JCS 376 branch cable (Japanese Electric Wire Industry Standard)
General Rules for JIS C2810 indoor wiring electrical connection pipes (Japanese Industrial Standard)
Types of the cables:：
Standard main cables and branch cables are all low-voltage power cables with XLPE or PVC insulation materials (IEC, GB, JIS, BS ... ...), and PVC materials covered on the outer side. Generally, the main cable is single-core or twisted multi-core cable (cables with two to five cores), the branch cables are single-core cables, and may adopt a fire-resistant, flame retardant cables in accordance with the requirements.
Their structures and types are as follows:
No. | Cable Description | Type | |||
single core | three cores twisted type | four cores twisted type | five cores twisted type | ||
1 | PVC insulated PVC sheathed branch cables | FZ-W | FZ-W-3 | FZ-W-4 | FZ-W-5 |
2 | PVC insulated PVC sheathed flame-retardant branch cable | FZ-ZRVV | FZ-ZRVV-3 | FZ-ZRVV-4 | FZ-ZRVV-5 |
3 | PVC insulated PVC sheathed fire-resistant branch cable | FZ-NHVV | FZ-NHVV-3 | FZ-NHVV-4 | FZ-NHVV-5 |
4 | Cross-linked polyethylene insulated PVC sheathed branch cables | FZ-YJV | FZ-YJV-3 | FZ-YJV-4 | FZ-YJV-5 |
5 | Cross-linked polyethylene insulated PVC sheathed flame-retardant branch cables | FZ-ZRYJV | FZ-ZRYJV-3 | FZ-ZRYJV-4 | FZ-ZRYJV-5 |
6 | Cross-linked polyethylene insulated PVC sheathed fire-resistant branch cable | FZ-NHYJV | FZ-NHYJV-3 | FZ-NHYJV-4 | FZ-NHYJV-5 |
- Q: What I really just want to know is the equation and basic concept on how to determine the optimal length of power cable needed to connect two poles while knowing only the linear density of the cable.It does not matter how much sag is produced because of limitations due to the strength of the power cable.
- The web page provides very thorough information and rigorous mathematical treatment relevant to the answer you seek. But it is just too much all at once to digest. So take it piecemeal, one bit at a time! First, you must realize that the sag of the cable is the single most important design parameter and strict attention to cable weight determines the optimal length. The equation of the catenary is the precise model but a parabolic approximation may work. (parabolic approx.) ymax = (3wl?) / ?√(64EA) P = wl?/(8ymax) Where ymax is the maximum sag l is the unstretched length w is the weight/unit length E Youngs modulus A Wire area P axial tension the curve is a parabola, which is a good approximation if the depth of sag is no greater than 1/8th of the span. Use the second equation to derive the induced tension P. H:=WL?/8S S:=WL?/8H L: distance between support S: Sag at mid-span H: tension (horizontal component of tension) The tension depends purely on the loaded geometry and the weight per unit length.
- Q: My ac jack is screwed up and I can't plug in the ac adapter. I have heard that there is a power cable that will plug into one of the other ports on the side of the computer to, but I don't know where to find one or what they are called. Also, I have heard there are a million problems with the R3000 - and some can be fixed by taking it apart. I do NOT want to do this. I just need an alternative power cable. The laptop works perfect - if it had power. Thanks in advance. :)
- in case you're a do it your self guy attempt to get the plug at a digital shop like Radio Shack and adjusted your self that stands out as the low-fee determination, maximum adapters had the cable related to the potential furnish so the subsequent determination would be to interchange the potential furnish which will fee a minimum of 60 money additionally try OKorder in specific situations you get areas very much less costly there.
- Q: Ok so my friend gave me a 40LCD samsung tv, but he had lost the power cable some how. I have actually found a cable to buy on the internet but i have some concerns. 1 i'm not entirely sure its the right cable for my tv, the socket looks like it would fit but the cable claims to work for all samsung song and lg tvs, when i know that my parents song lcd tv has a more complicated power cable. So i'm worried that using this cable could like wreck the tv or something. the second thing is that i herd you can call samsung and they'll send you a cable for free
- Samsung Tv Power Cable
- Q: i have pentium iii cpu.unexpectedly i disconnected my power cable from power button.the power cable consists four color(red,black,white,blue) and in my power button it has four(p1,p2,1,2) pins.i don't know which colour is opt with this pins uld you plz help me...
- Find out the make/model of your motherboard. Go to the motherboard manufacturer's website and download the user manual for your motherboard. In this manual there should be a page (or pages) illustrating where the various headers and connectors are on your motherboard.
- Q: YJV-0.6 / 1KV-5x16 What does it mean? What does it mean? 1KV refers to what? 5 if it means 5 core, which 5 core refers to a 16mm2 cable has 5 core?
- Why did not you take this time when you were installed or that it was only a detour
- Q: What can I use for a power cable? Need a new one and I am not sure what to get. Could you send a link to one please?
- Looks OK for the price.
- Q: Hi. I just purchased a hp slimline S3420F used from OKorder. (dumb move, I know) Anyway it worked for a few days and now it won't turn on. The power supply light on the back is one but the computer won't come on. I was looking in the trouble shooting guide and one thing that is suggested is to reseat the hard disk data and power cables. It says for instructions to refer to a manual that I can't get because it's on my computer. I am on a public computer now and can't upload the manual to this computer. I switched the voltage to 230 and back to 115 real quick and that worked once. Probably just a coincidence. Now it just won't boot at all. LIke I said, the green power supply light on the back of the computer is on. I can read replies from my cell phone so perhaps someone can give me some ides what to do. I'm sure the answer lies in taking it to a repair shop. :(
- Re-seating is nothing more than unplugging a connection, then plugging it back in. Your real problem sound related to the 230/115 switch, if not the power supply itself.
- Q: lets say for an optical drive, the power cable has four pins. im guessing that there is power (12v?) and ground but what about the other two?im trying to plug a pair or old neon sticks into my car for accent lighting and i need to know where to put these wires at, if they are all neccessary.
- The four pin connector that is used to power PC drives supplies two different voltages: +12 volts for the motor +5 volts for the electonics The other two pins are ground pins. ________ / .............. |..1..2..3..4..| |.................| Pin Function 1 +5 V 2 Ground 3 Ground 4 +12 V
- Q: what does the power cable that comes with video cards do? is it for when u dont have a 6-pin power connector or something? j/w cuz im thinkin bout gettin a ati 3850 and it requires a 6-pin connector, but yet i know 2 dudes with the same psu as me, runnin a ati 3850 perfectly.HP Hipro 300W 12V 19amps but yet it doesnt have a 6-pin connector
- That's right, the power cable is in case your power supply doesn't have a 6-pin power connector. A 300W power supply for a 3850 is cutting it a bit close, but you'll probably get away with it if the rest of your machine is typical. (Typical machines with a 3850 are just under 200W peak. See link.)
- Q: I got a Alienware m15x about a year ago, and about 8 months ago on startup it would make two incredibly loud beeps and a screen would show saying 'your charger cable is not the reccomended 150w originally shipped', even thought it is. It would only happen very rarely at first, but now its nearly every time. I don't mind just ignoring it, but if there is a quick fix it would be nice.
- Check okorder Wish the Best.
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Assembled prefabricated branch cable FZ-NHVV-3
- 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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