XLPE insulated
electrical Power Cable consists of below major components: one or more high quality stranded
copper or aluminum conducts, XLPE insulation, fixed tape and filler, optional
protective armour, overall PVC sheath.
These cables are
with simple structure, light
weight and high heat resistance.
With the development of our technology, our factory is able to manufacturing
our products more lighter, durable
and flexible for international requirements.
It
could be classified into 3 type as below:
Non-armoured XLPE Power Cable(Cu or Al /XLPE/PVC)
Steel Tape Armoured Power Cable(Cu or Al/XLPE/STA/PVC)
Steel
Wire Armoured Power Cable(Cu or Al/XLPE/STA/PVC)
Manufacture Standard
This cable is
manufactured according to the standard of GB12706-2008(The Same as
IEC60502).It can
also be manufactured according to IEC,BS,UL as request.
Using features
l Max. permissible
continuous operating temperature of conductor is 90℃.
l Max. temperature of
conductor during short circuit (5s maximum duration ) shall not exceed 250℃.
l The ambient temperature under installation should not below 0℃.
l The bending radius of a single-core cable: not less than 20
times of cable`s OD
Why choose XLPE
Insulated Power Cable?
l Heat
resistant performance-With XLPE special structure, it
will not be decomposed and carbonized up to 300℃ with at most 40
years life time.
l Insulating
Performance-Same insulation characteristic as PE, higher electrical resistance and
less impact by temperature.
l Mechanical
Performance-Higher hardness, stiffness, abrasion resistance and shock
resistance.
l Chemical
performance-XLPE has higher resistance to acid and alkaline. It only produce
water and carbon dioxide, it shows more environmental friendly which could
satisfy modern requirements of fire safety.
Application:
This product is
suitable for transmission and distribution of electrical power with AC rated
voltage 0.6/1Kv,1.8/3 kV,3.6/6 kV,6/10 kV,8.7/10 kV,8.7/15 kV,12/20 kV,26/35kV
kV. Such as power distributing systems, industrial plant and others.
You are always
welcome to contact us if you have any questions about XLPE electrical power
cables. We will offer you professional solutions as you required with
attractive price.
XLPE Insulated PVC Sheathed Power Cable XLPE Insulated PVC Sheathed Power Cable,Power Cable With XLPE Insulator,XLPE Insulation Power Cable,XLPE Insulated Power Cable Smartell Technology Co.,Ltd , http://www.liencable.com
The increasing use of color LCDs in hand-held equipment is creaTIng a need for smaller and cheaper sources of white backlight. Cold-cathode fluorescent lamps (CCFLs) and electro-luminescent (EL) panels have been used in the past, but those circuits are excessively large, expensive, and complex for today's hand-held, consumer-electronics devices. Fortunately, recent advances in LED technology have produced an LED that emits white light. White LEDs have several advantages over conventional types, including small size, low cost , low complexity, and high reliability.
The typical forward-bias voltage for white LEDs is about 3.5V ± 10%. To obtain white light you simply forward-bias the device, but a boost circuit is required because the white LED's forward voltage can be greater than the battery voltage. The conventional approach to this problem—a boost regulator that biases the LEDs through a ballast resistor—has two drawbacks. First, the wide variation of forward voltage in white LEDs causes a large variation in bias current and the resulting light output. Second, the conventional boost converter has a DC path between input and output (even in shutdown) that allows an inactive LED to drain the battery.
The compact circuit (Figure 1) overcomes these problems. The regulated buck / boost charge pump in a small µMAX package (U1) has a 100mA output-current capability. Configured as shown, the circuit directly regulates bias current flowing through the white LED. By biasing multiple white LEDs in parallel, it can provide good light distribution. The U1's design eliminates the troublesome input-output path in shutdown, and its active-low SHDN input (Pin 2) lets the user turn the backlight on and off. The circuit also includes a power-OK output (POK) for signaling a microprocessor when the backlight is available. 
Figure 1. Unorthodox connections enable this regulated charge-pump IC to directly regulate the bias current of the white LED.
Though not necessary in this case, the input RC "π" filter limits voltage ripple reflected back to the input to just 40mVP-P (for VIN = 3.6V). Because output-voltage ripple is not visible to the eye, it is of secondary concern in this application, and allows the use of a small (0.22µF) output capacitor. Even so, the output ripple is only 400mVP-P.
A similar version of this article appeared in the March 5, 2001 issue of Electronic Design magazine. 
The bending radius of a three-core cable: not less
than 15 times of cable`s OD
Compact structure, non-inductive booster circuit adjusts white LED bias current-Compac
Abstract: This arTIcle shows how to use the MAX1759 buck / boost charge pump to power white LEDs for display backlighTIng in portable applicaTIons.