Overhead cable
The product is weather-resistant cross-linked polyethylene, weather-resistant high-density polyethylene or weather-resistant polyvinyl chloride extruded outside of compacted copper and aluminum conductors. Its structure is simple, safe and reliable. At the same time, it has excellent mechanical and physical properties and electrical properties. Resistance to electrical tracking, creeping discharge resistance, and excellent atmospheric resistance. Compared with bare wires, the laying gap is small, the line corridor is saved, and the line voltage drop is reduced. Especially to reduce power supply accidents and ensure personal safety, it is suitable for cities, rural areas, mountainous areas, forest areas, and mining areas. It is an all-weather cable product.
Classification:
Key words:
Overhead cable
- Description
- Model and specification
- Usage characteristics
- Parameter
- Transportation
-
- Commodity name: Overhead cable
- Commodity ID: 1329827709743419392
The product is weather-resistant cross-linked polyethylene, weather-resistant high-density polyethylene or weather-resistant polyvinyl chloride extruded outside of compacted copper and aluminum conductors. Its structure is simple, safe and reliable. At the same time, it has excellent mechanical and physical properties and electrical properties. Resistance to electrical tracking, creeping discharge resistance, and excellent atmospheric resistance. Compared with bare wires, the laying gap is small, the line corridor is saved, and the line voltage drop is reduced. Especially to reduce power supply accidents and ensure personal safety, it is suitable for cities, rural areas, mountainous areas, forest areas, and mining areas. It is an all-weather cable product.
Standard
This product is produced according to GB/T12527 "Overhead insulated cables with rated voltage of 1kV and below" and GB/T14049 "Overhead insulated cables with rated voltage of 10kV".
Features and uses
The product is weather-resistant cross-linked polyethylene, weather-resistant high-density polyethylene or weather-resistant PVC extruded outside of compacted copper and aluminum conductors. Its structure is simple, safe and reliable. At the same time, it has excellent mechanical and physical properties and electrical properties. Resistance to electrical tracking, creeping discharge resistance, and excellent atmospheric resistance. Compared with bare wires, the laying gap is small, the line corridor is saved, and the line voltage drop is reduced. Especially to reduce power supply accidents and ensure personal safety, it is suitable for cities, rural areas, mountainous areas, forest areas, and mining areas. It is an all-weather cable product. -
Model
Rated voltage kV
Model
Name
Main purpose
1
JKV
JKLV
Copper core PVC insulated overhead cable with rated voltage of 1kV
Aluminum core PVC insulated overhead cable with rated voltage of 1kV
Overhead fixed laying of lead-in wires, etc.
JKY
JKLY
Copper core polyethylene insulated overhead cable with rated voltage of 1kV
Aluminum core polyethylene insulated overhead cable with rated voltage of 1kV
Overhead fixed laying of lead-in wires, etc.
JKYJ
JKLYJ
Copper core XLPE insulated overhead cable with rated voltage of 1kV
Aluminum core XLPE insulated overhead cable with rated voltage of 1kV
Overhead fixed laying of lead-in wires, etc.
10
JKYJ
JKLYJ
JKTRYJ
Copper core XLPE insulated aerial cable
Aluminum core XLPE insulated aerial cable
Soft copper core XLPE insulated aerial cable
When overhead fixed laying and cable erection, a certain distance between the cable and the tree should be considered. When the cable is running, frequent contact between the cable and the tree is allowed
10
kV
Aluminum core lightweight XLPE thin insulated aerial cable
When overhead fixed laying and cable erection, a certain distance between the cable and the tree should be considered. When the cable is running, only short-term contact between the cable and the tree is allowed
Specifications
Rated voltage kV
Number of cores
Nominal cross section㎜2
10
1, 3, 3+K
25-300
1
1, 2, 3, 4
16-300
-
Using features
1. There are two types of cable rated voltages
a.1kV, b.10kV
2. Long-term allowable working temperature of the cable
Polyvinyl chloride insulation is 70℃
High-density polyethylene insulation is 70℃
XLPE insulation is 90℃
3. When short circuit (the longest duration does not exceed 5 seconds), the maximum temperature of the cable
PVC insulation is 160℃
High-density polyethylene insulation is 150℃
XLPE insulation is 250℃
4. The laying temperature of the cable should not be lower than -20℃
5. Allowable bending radius of the cable
Cables with rated voltage of 1kV and below:
For cable outer diameter D＜25mm, the bending radius is not less than 4D
Cable outer diameter D≥25㎜, the bending radius is not less than 6D
Rated voltage 10kV cable
Single core cable: 20(d+D)±5%
Multi-core cable: 15(d+D)±5%
D-The actual outer diameter of the cable (mm),
d-The actual outer diameter of the conductor (mm). -
1kV single core PVC insulated overhead cable JKV, JKLV
Nominal section mm²
Insulation thickness mm
Theoretical cable outer diameter mm
Theoretical cable weight kg/km
Maximum conductor resistance at 20℃ Ω/km
Cable breaking force N
Cu
AL
Hard copper
AL Hard copper
AL
16
1.2
7.2
177
78
1.198
1.91
5486
2517
25
1.2
8.4
264
110
0.749
1.20
8465
3762
35
1.4
9.8
369
152
0.540
0.868
11731
5177
50
1.4
11.1
511
201
0.399
0.641
16502
7011
70
1.4
12.8
700
267
0.276
0.443
23461
10354
95
1.6
14.8
948
360
0.199
0.320
31759
13727
120
1.6
16.2
1181
438
0.158
0.253
39911
17339
150
1.8
18.2
1478
550
0.128
0.206
49505
21033
185
2.0
20.2
1823
678
0.1021
0.164
61846
26732
240
2.2
22.8
2356
870
0.0777
0.125
79823
34679
300
2.2
25.4
2938
1081
0.0619
0.100
99788
43349
1kV single core XLPE insulated aerial cable JKYJ, JKLYJ
Nominal section mm²
Insulation thickness mm
Theoretical cable outer diameter mm
Theoretical cable weight kg/km
Maximum DC resistance of conductor Ω/km
Cable breaking force N
Cu
AL
Hard copper
AL
Hard copper
AL
16
1.2
7.2
167
68
1.198
1.91
5486
2517
25
1.2
8.4
252
97
0.749
1.20
8465
3762
35
1.4
9.8
351
135
0.540
0.868
11731
5177
50
1.4
11.1
491
181
0.399
0.641
16502
7011
70
1.4
12.8
677
244
0.276
0.443
23461
10354
95
1.6
14.8
917
329
0.199
0.320
31759
13727
120
1.6
16.2
1147
404
0.158
0.253
39911
17339
150
1.8
18.2
1435
506
0.128
0.206
49505
21033
185
2.0
20.2
1769
624
0.1021
0.164
61846
26732
240
2.2
22.8
2289
803
0.0777
0.125
79823
34679
300
2.4
25.4
2856
999
0.0619
0.100
99788
43349
10kV single core XLPE insulated aerial cable JKYJ, JKLYJ
Nominal section mm²
Insulation thickness mm
Theoretical cable outer diameter mm
Theoretical cable weight kg/km
Maximum DC resistance of conductor Ω/km
Cable breaking force N
Cu
AL
Soft copper
Hard copper
AL
Hard copper core
Aluminum core
25
3.4
13.8
351
196
0.727
0.749
1.20
8465
3762
35
3.4
14.8
453
236.
0.524
0.540
0.868
11731
5177
50
3.4
16.1
603
293
0.387
0.399
0.641
16502
7011
70
3.4
17.8
803
369
0.268
0.276
0.443
23461
10354
95
3.4
19.6
1053
465
0.193
0.199
0.320
31759
13727
120
3.4
21.0
1293
551
0.153
0.158
0.253
39911
17339
150
3.4
22.6
1581
653
0.124
0.128
0.206
49505
21033
185
3.4
24.2
1914
769
0.0991
0.1021
0.164
61846
26732
240
3.4
26.4
2432
946
0.0754
0.0777
0.125
79823
34679
300
3.4
28.6
2994
1137
0.0601
0.0619
0.100
99788
43349
10kV single-core XLPE insulated light-duty (thin insulated) aerial cable JKYJ/Q JKLYJ/Q
Nominal section mm²
Insulation thickness mm
Theoretical cable outer diameter mm
Theoretical cable weight kg/km
Maximum DC resistance of conductor Ω/km
Cable breaking force N
Cu
AL
Cu
AL
Cu
AL
25
2.5
11.0
292
137
0.749
1.200
8465
3762
35
2.5
12.0
389
172
0.540
0.868
11731
5177
50
2.5
13.3
533
223
0.399
0.641
16502
7011
70
2.5
15.0
724
291
0.276
0.443
23461
10354
95
2.5
16.6
960
372
0.199
0.320
31759
13727
120
2.5
18.0
1193
450
0.158
0.253
39911
17339
150
2.5
19.6
1473
544
0.128
0.206
49505
21033
185
2.5
21.2
1797
652
0.1021
0.164
61846
26732
240
2.5
23.4
2304
818
0.0777
0.125
79823
34679
300
2.5
25.6
2855
998
0.0619
0.100
99788
43349
-
Delivery length
The delivery length of the cable should not be less than 100m, and the measurement error should not be greater than ±0.5%.
24 cores and below: It is allowed to deliver short cables with a length of not less than 20 meters, and the quantity should not exceed 5% of the total length of delivery.
More than 24 cores: It is allowed to deliver short cables with a length of not less than 20 meters, and the quantity should not exceed 10% of the total length of delivery.
According to the agreement between the two parties, any length of cable is allowed to be delivered.
Packaging signs and transportation
Cables in coils or coils should be neatly wound and properly packaged.
Each circle or plate should be attached with a label indicating:
Manufacturer name or trademark
Cable model and specification mm2
Rated voltage V
Length m
Manufacturing Date: Year Month
Standard number
Gross weight kg:
Correct rotation direction of the cable reel
Transport and storage
Spools are not allowed to lay flat
During transportation, it is strictly forbidden to lower the cable reel with cables from a high place, and it is strictly forbidden to lose the cables mechanically.
When hoisting packages, it is strictly forbidden to hoist several trays at the same time. On vehicles, ships and other transportation tools, the cable reel must be placed firmly and fixed with a suitable method to prevent mutual collision or overturning.
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