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Tel +86 371 86097078
Tel +86 371 86097078
Prefabricated branch cable class is introduced in this article through prefabricated branch cable trunk cable and feeder cable specifications, cable structure, etc.
Prefabricated branch cable trunk cable and feeder cable specifications:
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Trunk cable section (mm2)
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Feeder cable section (mm2)
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10
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6
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10
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16
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6
|
10
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16
|
|
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|
|
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25
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6
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10
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16
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25
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|
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|
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|
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35
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6
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10
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16
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25
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35
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|
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50
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6
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10
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16
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25
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35
|
50
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|
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70
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6
|
10
|
16
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25
|
35
|
50
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70
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|
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|
|
|
|
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95
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6
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10
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16
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25
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35
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50
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70
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95
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|
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|
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120
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6
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10
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16
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25
|
35
|
50
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70
|
95
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120
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|
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|
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150
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6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
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120
|
150
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|
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|
185
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6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
|
|
|
|
240
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6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
240
|
|
|
|
300
|
6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
240
|
300
|
|
|
400
|
6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
240
|
300
|
400
|
|
500
|
6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
240
|
300
|
400
|
|
630
|
6
|
10
|
16
|
25
|
35
|
50
|
70
|
95
|
120
|
150
|
185
|
240
|
300
|
400
|
Prefabricated branch cable structure:
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Trunk cable mm2
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Extension Cables mm2
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Reference dimensionmm
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Schematic tap
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||
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d1
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d2
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L
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|||
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10
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~10
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54
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35
|
95
|
 |
|
16
|
~16
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||||
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25
|
~25
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||||
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35
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~35
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||||
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50
|
~50
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57
|
38
|
95
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|
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70
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~70
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|
95
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~95
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||||
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120
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~120
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78
|
52
|
145
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|
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150
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~150
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185
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~185
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240
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~240
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96
|
70
|
160
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|
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300
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~300
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400
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~400
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500
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~400
|
106
|
80
|
170
|
|
|
630
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~400
|
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Standard trunk cables and extension cables are based on models with the corresponding insulation and sheath materials, with reference to IEC, GB, JIS and other standards made of low-voltage power cable. General Cable is a single trunk or multi-core twisted (two core five-core cable), Extension cable with single core cables. The structural characteristics are as follows:
Non-fire resistant cable structure: Single-core cable and Four core twisted cable
Fire-resistant cable structure: Single-core cable and Five core twisted cable
The structure of the branch connector: Prefabricated branch cable connection part of the body using special PVC or synthetic materials, such as cable connections shown on the right branch of the body.
Main technical performance prefabricated branch cable:
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No.
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Project
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Performance requirements
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1
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Insulation
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AC 3.5 kV/5min
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2
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Insulation resistance
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≥200MΩ
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3
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Branch joint resistance ratio
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Branch joint resistance ratio kj≤1.2
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4
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Short circuit test
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After a short circuit ratio of rate of change of DC resistance Yj≤0.2
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5
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Thermal cycling test
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Determination of the value of 25 cycles：≤75℃
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||
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No. 26-125 cycles measured values , the temperature rise of less than 25 cycles measured value +8 ℃
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6
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Flame Retardant
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Ignition off within 15 seconds
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7
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Enhance the fitting
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Tensile pull
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24h, 2 times the weight does not place the
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Insulation voltage
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3.5kV/5min
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|||
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Insulation resistance
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≥200MQ
|
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8
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Molded plastic
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Room temperature
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Tensile pull
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≥10MPa
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Elongation
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≥120%
|
|||
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Heating
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Tensile pull
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Before heating 85%
|
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Elongation
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Before heating 80%
|
|||
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Oil
|
Tensile pull
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Before heating 85%
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Elongation
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Before heating 860%
|
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Cold-resistant
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Test is not broken
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Heat distortion
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Thickness reduction rate of less than 50%
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|
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Relative Articles:
◆Advantages and applications of Composite Cross Arm Tower
◆Cable
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◆Install dimension of termination
◆Straight line type strain clamp
