Basic Info.
Application
Overhead, Industrial, Power Station
Voltage
High Voltage Cable
Wire Core Material
Aluminum Alloy Conductor
Product Description
APPLICATION
YJLHV-Aluminum Alloy Conductor XLPE Insulated Steel Tape Armoured PVC Sheathed Power Cable
This product is suitable for using in power distribution networks or fixed installations for industrial equipments with rated voltage up to and including 26/35KV
BASIC INFORMATION
1. Code Name
YJLHV
2. Rated Voltage (Uo/U)
18/20KV,18/30KV
3. Cable Structure
Aluminum Alloy Conductor/XLPE Insulation/PVC Sheath
CONSTRUCTION
1. Conductor
Number of conductors:1,3
The conductors shall comply with the requirement given in IEC
2. Insulation
XLPE(Cross-linked Polyethylene) according to IEC
3. Sheath
PVC(Polyaluminium Chloride) according to IEC
4. Metal screen
Copper Tape Screen
CABLE STANDARDS
GB/T12706-2008,IEC,BS,ASTM and etc. upon request.
CHARACTERISTICS
1. Conductor temperature
Maximum conductor temperature in normal use: 90ºC
2. Max.short-circuit temperature
Maximum shall not exceed 250ºC(5s Max,Duration)
3. Installation temperature
Ambient temperature under installation shall not be below 0ºC
4. Minimum bending radius
The bending radius of cable: (D-Diameter of cable)
For Three Core Cable-------------------------------------≥10D
For Single Core Cable-------------------------------------≥15D
Voltage designation
The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used,and is expressed in the form of Uo/ U(Um)kV.
Where:
Uo-The rated power-frequency voltage between conductor and screen or metallic-sheath,for which the cable designed;
U-The rated power-frequency voltage between conductors, for which the cable designed:
Urn-The maximum value of the "hight system voltage " for which the equipment may he operated.
Rated voltaged of cable applied in three phrase system are given in table
U
Um
Uo
First class
Second class
1
1.2
0.6
0.6
3
3.6
1.8
3.6
6
7.2
3.6
6
10
12
6
8.7
15
17.5
8.7
12
20
24
12
18
35
42
21
26
Note:The first class cable suitable for one single-phrase earth-fault time does not exceed 1 min each time and Max. time not exceed 8 hours.and not exceed 125 hours in all in one year.
The second class cable suitable fir more earth-fault time and more better insulation performance.
Production Range of cable
Type
No. of cores
Nominal Cross sectional area m2
Aluminum alloy conductor
YJLHV
1
25-630
3
25-630
*The armoured single-core cables are used for D.C system only. As for A.C system non-magnetic armoured material should be used. Or magnetic isolation measures should be applied.
DIMENSIONS-YJLHV-18/20KV 18/30KV
Nominal cross sectional area of conductor(mm²)
Nominal insulation thickness(mm)
18/20KV 18/30KV YJLHV
Approx overall diameter(mm)
Cable weight max(kg/kn)
1×35
8.0
31.9
1020
1×50
8.0
33.3
1250
1×70
8.0
34.9
1400
1×95
8.0
36.7
1550
1×120
8.0
38.2
1700
1×150
8.0
39.9
1860
1×185
8.0
41.5
2050
1×240
8.0
44.0
2310
1×300
8.0
46.3
2600
1×400
8.0
49.6
3060
1×500
8.0
52.8
3560
1x630
8.0
56.4
4120
3×50
8.0
68.4
4350
3×70
8.0
72.5
4930
3×95
8.0
75.9
5580
3×120
8.0
79.4
6100
3×150
8.0
82.6
6410
3×185
8.0
86.4
7370
3×240
8.0
91.4
8300
3×300
8.0
96.7
9300
3×400
8.0
103.8
10620
3x500
8.0
111.1
11780
3x630
8.0
119.2
13650
*Compacted conductor
Product Data Of Cable
Nominal cross-sectional area of conductor(mm²)
Max.D.C resistance of conductor at 20ºC(Ω/km)
Max.short circuit current of conductor at 90ºC
Aluminum alloy conductor
Aluminum alloy conductor
25
1.17
2.42
35
0.843
3.37
50
0.622
4.79
70
0.430
6.68
95
0.311
9.03
120
0.246
11.4
150
0.200
14.2
185
0.159
17.5
240
0.121
22.6
300
0.0971
28.2
400
0.0755
27.6
500
0.0687
47.0
630
0.0455
58.0
Voltage test and partial discharge test
No.
Test items
Rated Voltage KV
18/20 18/30
1
Power frency A.C.Voltage test (KV/5min)
63
2
Power frency A.C.Voltage test for 4 hours (KV)
72
3
Impluse voltage test(KV)
170
4
Partial discharge test maximum discharge at 1.73Uo pc
5
The power-frequency voltage test of cables for rated voltage 21/35KV shall be done upon request according to 2.5Uo×30min or 3.5Uo×50min.
Capacitance of cable(reference value)
Nominal cross-sectional area of conductor(mm²)
Rated Voltage KV
18/20 18/30
Capacitance/phase μF/km
25
0.1163
35
0.1251
50
0.1363
70
0.1508
95
0.1643
120
0.1760
150
0.1893
185
0.2026
240
0.2207
300
0.2387
400
0.2684
500
0.2876
630
0.3151
Inductance of cable
Nominal cross-sectional area of conductor(mm²)
Rated Voltage KV
18/20 18/30
Capacitance/phase μF/km
1x50
0.6501
1x70
0.6252
1x95
0.6043
1x120
0.5891
1x150
0.5740
1x185
0.5640
1x240
0.5487
1x300
0.5376
1x400
0.5219
1x500
0.5218
1x630
0.5012
3x50
0.4396
3x70
0.4145
3x95
0.3956
3x120
0.3799
3x150
0.3642
3x185
0.3485
3x240
0.3360
3x300
0.3266
3x400
0.3014
Short circuit current of mechanic-screen
Nominal cross-sectional area of conductor(mm²)
Rated Voltage KV
18/20 18/30
Short circuit current
1x50
1284
1x70
1281
1x95
1280
1x120
1279
1x150
1278
1x185
1275
1x240
1274
1x300
1271
1x400
1270
1x500
1266
1x630
1265
3x50
3031
3x70
3031
3x95
3031
3x120
3031
3x150
3031
3x185
3031
3x240
3031
3x300
3031
Aluminum alloy conductor XLPE insulated power cable for rated voltage 3.6/6~12/20KV
Aluminium Alloy Conductor
Nominal Cross sectional area of conductor mm2
In the air
In the ground
Air temperature:40ºC
Air temperature:25ºC
Single Core
Three Core
Single Core
Three Core
25
110
130
90
115
120
100
35
135
155
110
135
145
120
50
160
190
130
160
175
140
70
20
235
165
200
215
170
95
24
290
200
240
255
210
120
280
335
225
270
290
235
150
32
380
255
305
330
260
185
365
435
295
345
370
300
240
435
515
345
400
435
345
300
500
595
390
455
490
390
400
585
695
450
520
565
440
500
680
810
-
595
650
-
630
790
950
-
680
745
-
Installation and Operation Condition of Cable
Max.Operation temperature of conductor----------------------90ºC
Ambient air temperature------------------------------------------ 40ºC.
Soil temperature-----------------------------------------------------25ºC.
Soil thermal resitivity---------------------------------------------1.0ºCm/w
Buried depth-----------------------------------------------------------0.8m
Single-Circuit only
Single-core cable is installed in parallel.Adjacent space is equivalent to the diameter of the cable.
Correction factors of current carrying for different soil temperature
Soil temperature(ºC)
15
20
25
30
35
40
45
Rating factor
1.09
1.04
1.0
0.96
0.92
0.87
0.83
Correction factors of current carrying for different thermal temperature
Rating factors for soil Thermal resistivityºC.m/w
1.0
1.2
1.5
2.0
2.5
3.0
3.5
Three cores
1.0
0.943
0.877
0.792
0.736
0.675
0.641
Single core
1.0
0.934
0.850
0.748
0.692
0.635
0.598
Correction factors of current carrying for different air temperature
Air temperature(ºC)
20
25
30
35
40
45
50
Correction factor
1.18
1.14
1.10
1.05
1.0
0.95
0.89
Address:
Room1116, Floor 11, Hongxing Jiuzhou International Plaza, Xincheng Road, Yixing, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Chemicals, Electrical & Electronics, Service
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001
Company Introduction:
Established in 2014 and bringing together the factory more than 30 years of experience in cable, Lonheo is backed by the excellent reputation of our cooperated factory, All what we do is to make them as leading cable contractors in the world.
Lonheo is able to strive in today′s competitive business environment by creating synergy and consolidating the resources of all partners. This ensures that Lonheo remains operationally and financially strong.
With this strategic partnership in place, Lonheo is able to help our customers achieve their goals and provide greater value-added services to them.
Our company are focus on cable & wire supplyment and waste water treatment chemicals.
Our Features Product:
===Power Cables===
Ultra High Voltage, Power Cable, High Voltage Power Cable, Medium Voltage Power Cable, Low Voltage Power Cable, LSZH (low smoke zero halogen) Cable, XLPE Cable, AAAC (Aluminium Alloy Conductor) Power Cable, Armoured Cable, SWA (Steel Wire Armoured) Cable.
Power cables are mainly used for power transmission and distribution systems in the power industry and general industries.
===Wires and cables for electrical equipment===
Rubber Insulated Cable, Mining, Drilling & Tunnelling Cable, Ship Cable, Nylon Sheathed Wire, Plastic Insulated Control Cable.
Electrical Equipment Cables are mainly used to supply and distribute electricity.
===Aerial Cable===
Aerial Bundled Cable, Copper Stranded Wire, Aluminium Conductor Steel Reinforced (ACSR) Wires, Aluminium Alloy Conductors (AAAC), Aluminium Stranded Conductor (AAC).
These cables are mainly used as overhead power lines for power transmission and power distribution.
===Special Cables and Wires===
Fire Resistant Cable, High Temperature Resistant Cable, Rodent Resistant Cable / Termite Resistant Cable, Waterproof Cable, Eco-friendly Direct Current cable, Medium Voltage Power Cable for Subway and Light-weight, Wind Energy Cable, 1E Class Nuclear Cable, Energy Efficient ACSR, UHV Supporting and Expanding Overhead Wires, Flexible Fire-proof Cable for 0.6/1KV.