XLPE INSULATED POWER CABLE
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It applices to the transmission and distribution lines with rated voltage from 0.6/1 kilovolts to 26/35 kilovolts , while flame retardant power cable is used in theplaces with special demands of flame retardant property , where cable is laid tightly
Table of rated voltage for 3 phase cable
U | Um | Uo | |
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1 3 6 10 15 20 35 | 1.2 3.6 7.2 12 17.5 24 42 | 0.6 1.8 3.6 6 8.7 12 21 | 0.6 3.6 6 8.7 12 18 26 |
class 1 applies to system of the duration of syngle phase earthing fault normally less than 1 minutes each time or the system of maximum duration less than 8 hours each time, but the total duration not more than 125 hour.
class 2 applies to system of more duration of earthing fault or the system with higher requirement to property of insulation.
Standards
The products are produced in accordance with GB/T12706-2002, i.e. , Copper or Aluminium Conductor Plastic Insulated Power Cable with Rated Voltage UP to and Including 35 kilovolts,part 3-XLPE Insulated power Cable.
4．Characteristics
-maximum rated temperature of conductor is 90℃
-maximum temperature is 250℃ when cable is shorted for less than 5 seconds
-ambient temperature should be not lower than 0℃ when cable is installed
-minimum bending radius is as follows when cable is installed
五 Key Technical Property(for type test)
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(7.2) |
6/10 |
8.7/15 |
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18/30 |
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Rated voltage, unit: kV | 3.6/6 (7.2) | 6/6 6/10 | 8.7/10 8.7/15 | 12/20 | 18/20 18/30 | 21/35 | 26/35 |
XLPE hot set test Test condition：15min., 20N/cm2 Max. elongation under load Max. elongation after cooling，no load |
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Min. tg δ at AC 2kV and 90±5℃ |
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Mechanical and physical property of insulation and sheath |
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Maximum D.C. resistance at 20 ℃ unit: Ω /km
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2.5 4 6 10 16 25 35 50 70 |
7.41 4.61 3.08 1.83 1.15 0.727 0.524 0.387 0.268 |
12.1 7.41 4.61 3.08 1.91 1.20 0.969 0.641 0.443 |
120 150 185 240 300 400 500 630 800 |
0.153 0.124 0.0991 0.0754 0.0601 0.0470 0.0366 0.0283 0.0221 |
0.253 0.206 0.164 0.125 0.100 0.0778 0.0605 0.0469 0.0367 |
6．Calculation Condition of Ampacity
-ambient temperature is 25℃ (underground) , 40℃ (air).
-conductor working temperature is 90℃
-soil heat resistance coefficient is 1.0℃·m/W , but not consider its rise resulted from water migration when it operates continuously.
-gap between axis of cable and surface of ground is 700 millimeter when it is laid in earth
-for many cable being laid in parallel. gap of axis of cables is 2 ti7．Factor of Affecting Ampacity of Cable
1 Ampacity coefficient when many group of cable are laid
Coefficent when cable is laid horizontally,directly in earth
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- Q: I got a XFX radeon 5750 graphics card and after a lot of trouble I realized that I hadn't plugged in the 6 pin PCIe power cable, but I don't see any slots on my power supply, does anyone know how to fix this problem? I really don't wanna buy another power supply :(
- Did the graphics card come with a power adapter cable? Update: Those are fan cables. Most video cards that have a six-pin power connector come with an adapter for people who don't have a 6-pin power connector. It adapts two Molex connectors to a six pin. See my link.
- Q: What are the reasons for the explosion of the cable? In the cable online
- Fiber engineering to see what you are doing, first of all is the cable selection model need to use the number of cable cable. There is a light converter, ODF frame. Open signal will use passive splitter, pigtail, fiber jumpers, optical modules. Brand you have a lot, and you want to domestic or foreign.
- Q: I lost my PS3 power cable but I got one from an old pc and it does work but am i better off using my old cable?Does it affect my PS3's performance?
- Mmm well a cable is a cable if it is a three pin one then it is fine. With powercables you need a certain thickness of the cable for safety. PC cables are able to run 1000Watt... so a 200Watt console is no trouble.
- Q: I'm about to order everything to put a new sound system in my Jeep Wrangler and I've been planning the locations to run new wires and cables. I got to looking at the area's where I could run the power cable for the amp and have come to 2 conclusions. I could either drill a hole in a very difficult to reach but hidden area behind the dash and try to hide the cable on the interior of the Jeep all the way to the rear where the amp is.. or, I could run the cable inside the hollow frame rails (which have many pre-drilled holes to slip the cable in and out of) under the Jeep and then just drill a hole to the interior in an easy to reach location near the amp. My only concern is that the cable's insulation will breakdown and crack prematurely due to exposure to water and road salts.. is this a real risk if I run the cable on the exterior of the vehicle? Or will the cable hold up just as well as any other cable such as those in the engine compartment? Thanks for your help!
- Honestly I Would Run The Wire Inside The Truck Why? Because The insulation Of The Wire Is Gonna Wear Out., And You Never Know A Sharp object Might Cut Your Wire And Cause A Short Or Even A Fire... I Would Run It Right Next To The Seats Under Neath The Carpet..
- Q: So I'm trying to add a sata hard drive from an older computer in my new one, but I encountered a problem. I have the cable the connects to the motherboard and the hard drive, but when looking at the power connectors for the hard drives, there is only one and it is connected to the main hard drive. Am I missing something that is slapping me in the face here, or is this a design flaw? there are 6 hard drive holders sooooo, it seems that there should be 6 power cords inside, but no. Only one. What do I do?
- Your chasis ia able to hold 6 hard disk but seems like your power supply does not. You can buy a cable splitter for the power or buy a new power supply. Do take note of the wattage rating on your power supply. Since there is only 1 cable, it may not have enough wattage to support the hardware
- Q: hey people i would like to know that my big fat power cable thing is not going into the socket the main power socket thing of the back of my xbox 360 elite and was wondering is there a way to fix that
- make sure the terminals arent bent....it should slide right in.
- Q: power cables for 3 phase wire
- Read your question aloud before posting to see if it makes sense when you hear it. When the answer is no, you need to revise your question.
- Q: I only see the power supply (with a cable to connect to the laptop), but I don't see the AC cable. In the specs it only says quot;Cables Included: 1x Power cable - 3 ft.quot;I want to know if it includes the whole charger, or just the power supply to connect to laptop.
- It includes the whole cable and adapter
- Q: my Sony Bravia KDL32BX300 power cable has been partly chewed by a hamster, whats the best way to fix this, to cut off damaged wiring and replace the plug or do i need to replace the whole power cable?? thanks
- Change the cable and give the hamster away.
- Q: ok so i opend up my machine, and i bassicly took apart the processor and removed the dail up pci card thingy, then i put it all back together and i also took off the case, which meant removing all case power leads, quot;power SWand power led etc. but i put them all in the same place i took them out, well i think i did, theres so many different slots it they could go into, it would take at least 500 attempts to find the right slots for all, not to mention the fact i might blow the board. so has anyone got the manual for this motherboard. or no where to find an online one. cus i need to know where to plug them in. thanks
- hi bradley we have all been there before.... rebuilt a pc and forgot which connectors go where on the motherboard.... however if you go to your motherboard manufactuers website you should be able to download the motherboard manual which will have a detailed diagram showing you were each connector goes however in theory you can get away with just plugging in the power connector ( power sw ) ....and it wont do any harm trying each combination... however i would recommend trying the top row of pins... and make sure you insert the connector horizontally as you look at it for example check this image of the power sw connector properly connected ( img204.imageshack.us/img204/8682/... ) .....as you can see the power sw is using pins 3 and 4 on the back row of pins.... so give that a try firstas i stated you wont blow the board..... ive seen people use screwdrivers to start their motherboards .. and this is done by shorting two pins.... so theres no way you are going to blow your motherboard..... however i would try to locate your motherboard manual first.... and failing that try my method.... and a good idea is to draw a diagram of your motherboard pins ... then as soon as you have tried a combination mark it off.... at least this way you are not going to try the same combination twice i hope this has helped,any problems let me know good luck bradley !
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XLPE INSULATED POWER CABLE
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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