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Contact Information
TEL: 0731-89895888
Address: Xiadopu Machinery Industrial Park, Ningxiang, Xiangjiang New District, Hunan Province
MV cable
Classification:
Power cable
Key words:
Product Introduction
1、 Application site: Medium voltage cable is a kind of power cable, which refers to the power cable used to transmit 3.6/6kV-26/35kV, and is mainly used in the trunk road of power transmission. Medium voltage power cables are used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines crossing rivers.
2、 Executive standards: The executive standards for medium voltage cables are GB/T 12706.2-2020 and GB/T 12706.3-2020.
3、 Product model and name
| model | name |
|
YJV YJLV |
Copper core (aluminum core) cross-linked polyethylene insulated PVC sheathed medium voltage power cable |
|
YJV22 YJLV22 |
Copper core (aluminum core) cross-linked polyethylene insulated steel tape armored PVC sheathed medium voltage power cable |
|
YJV62 YJLV62 |
Copper core (aluminum core) cross-linked polyethylene insulated non-magnetic tape armored PVC sheathed medium voltage power cable |
|
YJV32 YJLV32 |
Copper core (aluminum core) cross-linked polyethylene insulated fine steel wire armored PVC sheathed medium voltage power cable |
|
YJV42 YJLV42 |
Copper core (aluminum core) cross-linked polyethylene insulated thick steel wire armored PVC sheathed medium voltage power cable |
4、 Technical performance
1. Bending radius:
The allowable bending radius of single core cable is 20 (d+D) ± 5%
The allowable bending radius of multi-core cable is 15 (d+D) ± 5%
D=actual outside diameter of cable (mm)
D=actual diameter of conductor (mm)
2. Main technical indicators and laying requirements
(1) DC resistance: at 20 ℃, the DC resistance of conductive wire core per kilometer of product shall not be greater than the specified value (Ω/km)
(2) Voltage test: under ambient temperature, 3.5Uo power frequency power is applied between the cable conductor and the ground for 5min to make up the breakdown (Uo is the phase voltage between each phase conductor and the ground).
(3) Partial discharge test: when 1.73Uo voltage is applied between conductor and metal shield for 3.6/6KV and above products, the partial discharge amount shall not exceed 5Pc.
(4) The maximum working temperature of conductor is 90 ℃. The duration of 250 ℃ in short circuit shall not exceed 5 seconds. The ambient temperature during laying shall not be lower than 0 ℃.
Hunan Huatai Cable Co. LTD
Xiadopu Machinery Industrial Park, Ningxiang, Xiangjiang New District, Hunan Province
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