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TEL: 0731-89895888
Address: Xiadopu Machinery Industrial Park, Ningxiang, Xiangjiang New District, Hunan Province
Intercity rail transit power cable
Classification:
Special type cable
Key words:
Product Introduction
Product application
Rail transit cable is a new type of special wire and cable product born with the development of urban transportation. It can be widely used in intercity rail transit, including various types of Intercity Railway (track) lines and intercity trains, i.e. high-speed railway and other power transmission and distribution networks
Product category：
Rail transit cable is a new type of special wire and cable product category with the development of urban transportation. There are two kinds of rail transit cables: DC and AC. Rail transit cables for DC traction are generally single core 1500V, 750V and 300V, with armored and non armored types; The voltage grade of AC rail transit cable is 3.6/6kv-26/35kv, generally single core and three core。
Characteristics of the product：
Through reasonable structural design and selection of raw materials, rail transit cables have a variety of functions such as low smoke, halogen-free, flame retardant, waterproof, insect bite prevention and UV protection, so as to meet the special requirements for cable cleaning, environmental protection, flame retardant and other special requirements in crowded places and important facilities. Compared with similar technologies at home and abroad, it has the following characteristics
Copper core conductor is adopted, with low resistivity, good conductivity and excellent mechanical and physical properties.
XLPE insulation has excellent electrical and mechanical properties
It adopts a comprehensive waterproof layer structure, i.e. winding water stop belt, longitudinally wrapped aluminum-plastic composite belt (if necessary) and extruded polyethylene inner protective layer, which has excellent waterproof performance
It adopts winding high flame retardant tape, copper tape or steel tape armor (if necessary), which has good flame retardant and rat prevention functions
The weather resistant low smoke halogen-free flame retardant polyolefin material is used as the outer sheath of the cable, which has the properties of anti ultraviolet, flame retardant, non-toxic and low smoke
Product implementation standards
The products shall comply with GB / T 12706-2020 and GB / t19666-2019
Main performance indexes
The maximum temperature of cable conductor during normal operation is 90 ℃, and the maximum temperature during short circuit shall not exceed 250 ℃ (the maximum duration shall not exceed 5S)
Radial water resistance test of cable (15 ℃ ~ 30 ℃, 72h): there is no water mark on the insulating layer
Cable bundle combustion test: the longest distance of carbonized part is ≤ 2.5m
Halogen acid gas release during sheath material combustion ≤ 5mg / g
PH value of sheath material during combustion ≥ 4.3
Conductivity of sheath material during combustion ≤ 10 μ s/mm
Smoke density test during cable combustion: light transmittance ≥ 60%
Model and name of the product
| Type | Name | Section mm2 |
|
WDZB-YJY63 |
Rated voltage 8.7/10kv copper core XLPE insulated stainless steel tape armored low smoke halogen-free polyolefin sheathed flame retardant class B rail transit power cable |
50-185 |
|
FSY-WDZB-YJYA63 |
Rated voltage 8.7/10kv copper core XLPE insulated aluminum plastic comprehensive protective layer stainless steel tape armored low smoke halogen-free polyolefin sheathed flame retardant class B rat and ant proof rail transit power cable |
95-400 |
AC 8.7/10kv wdzb-yjya63 technical parameters
| Nominal section mm2 |
conductor structure |
DC resistance of conductor at 20 ℃ Ω/km |
Conductor reference outer diamete mm |
Insulation thickness mm |
external diameter mm |
Cable reference weight kg/km |
|
95 |
19/2.55 |
0.193 |
11.4 |
4.5 |
32.0 |
1832.1 |
|
120 |
26/2.46 |
0.153 |
12.9 |
4.5 |
34.0 |
2114.2 |
|
150 |
32/2.46 |
0.124 |
14.4 |
4.5 |
36.0 |
2789.3 |
|
185 |
40/2.46 |
0.0991 |
16.1 |
4.5 |
38.0 |
3220.0 |
|
240 |
53/2.46 |
0.0754 |
18.5 |
4.5 |
40.0 |
3873.0 |
|
300 |
60/2.58 |
0.0601 |
20.6 |
4.5 |
43.0 |
4545.6 |
|
400 |
59/2.95 |
0.0470 |
23.5 |
4.5 |
46.0 |
5457.1 |
Hunan Huatai Cable Co. LTD
Xiadopu Machinery Industrial Park, Ningxiang, Xiangjiang New District, Hunan Province
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