3 Core Power Cable with PVC/XLPE Insulation Low Voltage

3 core power cable with PVC/XLPE  insulation low voltage

( Including flame retardant cable , low smoke , halogen - free , flame retardant eable )

1.Type and Name
YJV-copper conductor XLPE insulated PVC sheathed power cable
YJY-copper conductor XLPE insulated PE sheathed power cable
YJLV-aluminium conductor XLPE insulated PVC sheathed power cable
YJLY-aluminium conductor XLPE insulated PE sheathed power cable
YJV22-copper conductor XLPE insulated,steel tape armored, PVC sheathed power cable
YJV23-copper conductor XLPE insulated,steel tape armored, PE sheathed power cable
YJLV22 -aluminium conductor XLPE insulated,steel tape armored, PVC sheathed power cable
YJLV23 -aluminium conductor XLPE insulated,steel tape armored, PE sheathed power cable
YJV32-copper conductor XLPE insulated,fine steel wire armored, PVC sheathed power cable
YJV33-copper conductor XLPE insulated,fine steel wire armored, PE sheathed power cable
YJLV32 -aluminium conductor XLPE insulated,fine steel wire armored, PVC sheathed
power cable
YJLV32 -aluminium conductor XLPE insulated,fine steel wire armored, PE sheathed
power cable
Note: for flame retardant cable,plus"ZA","ZB","ZC"before the type of common XLPE
power cable



U mKV

U oKV



A B

C

7.2
12.0
17.5
24.0
36.0
40.5

3.6
6.0
8.7
12.0
18.0
21



6.0
8.7
12.0
18.0
-
26

2.Application
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.
Uo -rated power frequency voltage between conductor and shield or metallic sheath when cable is designed
U-rated power frequency voltage between conductors when cable is designed
Um -max.equipment voltage (max.system voltage of the equipment in service)
Table of rated voltage for 3 phase cable

U
Um
Uo

class 1

class 2
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.
3.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 90ºC
-maximum temperature is 250ºC when cable is shorted for less than 5 seconds
-ambient temperature should be not lower than 0ºC when cable is installed
-minimum bending radius is as follows when cable is installed
Key Technical Property(for type test)


Maximum D.C. resistance at 20 ºC unit: Ω /km
6.Calculation Condition of Ampacity
-ambient temperature is 25ºC (underground) , 40ºC (air).
-conductor working temperature is 90ºC
-soil heat resistance coefficient is 1.0ºC·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 ti

7.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


Numbers of group

2

3

4

5

6

7

8



Gap

Contacted

0.79

0.69

0.63

0.85

0.55

0.50

0.46

7 cm

0.85

0.75

0.68

0.64

0.60

0.56

0.53

25 cm

0.87

0.87

0.75

0.72

0.69

0.68

0.64
Correction coefficient of ampacity when cables or wires laid side by side in air
Correction coefficient of ampacity when cables or wires laid side by side in air
Correction coefficient of ampacity when cables are arranged by different methods


Ampacity coefficient resulted from varied environment condition

8.  3 core power cable with PVC/XLPE  insulation low voltage specification

Nominal Cross Section
Diameter of Conductor (Approx.)
Nominal Insulation Thickness
Nominal Sheath Thickness
Overall Diameter (Approx.)
mm²
mm
mm
mm
mm
3x1.5
1.4
0.8
1.8
10.1
3x2.5
1.8
0.8
1.8
10.9
3x4
2.3
1
1.8
12.9
3x6
2.8
1
1.8
13.9
3x10
3.6
1
1.8
15.7
3x16
4.5
1
1.8
17.6
3x25
5.6
1.2
1.8
20.8
3x35
6.7
1.2
1.8
23.2
3x50
8
1.4
1.8
26.9
3x70
9.4
1.4
1.9
30.1
3x95
11
1.6
2.1
34.7
3x120
12.4
1.6
2.2
38
3x150
13.8
1.8
2.3
42.1
3x185
15.3
2
2.5
46.5
3x240
17.5
2.2
2.7
52.5
3x300
19.5
2.4
2.8
58
3x400
22.6
2.6
3.1
66.1

FAQ:
2. What kinds of products does Hengtian Cable manufacture?
1)Bare Conductor ,such as AAC,AAAC,ACSR,ACAR,AACSR,ACSR/AW and so on;
2)Aerial Bundled Cable (1kV-35kV ),such as Duplex,Triplex,Quadruplex Drop Wires and so on;
3)PVC Insulated (Flexible ) Wire ;
4) PVC Insulated and Sheathed (Armoured) Power Cable;
5)Low, Medium, High Voltage (1kV-220kV) XLPE Insulated (Armoured) Power Cable;
6)Welding Cable, Control Cable, Concentric Cable, Rubber Sheathed Cable and so on.

3. What kind of certifications do you have?
SABS, CE, ISO9001-2000, SGS.

4.Which markets do you involve mainly in?
Our products have been exported mainly to Australia, Russia, Africa, Middle East, South-east Asia, South America,Central America,North America, Europe ,Austrapa, etc.

5. Which standards do you comply with when you produce the electrical wires and cables ?
We are able to produce electrical wires and cables based on GB, JB, IEC, BS, DIN, ASTM, JIS, NF, AS/NZS, CSA, etc. Meanwhile, we can design and manufacture the cables according to the samples and technical specification the customer supply.

6. What is the min.order quantity ?
It depends on the type and size of electrical wires and cables. For some small electrical wires, 100 meters can be accepted .But for the power cables with medium or high voltage, that should comply with the property of installed equipments. Anyhow,we will try our best to solve the problem and meet with the requirement If you have special request.

7. What is the production capacity per week or per month ?
For the bare conductor, we can finish 3000 tons within one month. For power cables, that depends on the type and size. The total output value per month is approx. USD3,000,000.00 for insulated aluminum cables and that is approx. USD8,000,000.00 for insulated copper cables.

8. Do you supply the customers with installation service in foreign country ?
We don't have professional installation teams in foreign country.But if that is necessary, we will recommend our partners to cooperate with you