500kv High Voltage Cable Yjlw03 290-500kv 1*2500mm2 Copper Cable
Descrizione
500 KV XLPE Insulated Power Cable
1. Standard
We produced according to National Standard of GB/T 22078.2-2008 of the People’s Republic of China.
2. Range of application
It is suitable for single-core cable’s installation and operation under normal conditions of rated voltage 290/500 KV, but it is not suitable for cable in special use, such as submarine cable.
3. Characteristics of cable
Rated voltage of cable is U0=290 KV,U=500 KV,Um=550 KV.
The allowable maximum temperature of cable conductor is 90ºC when it runs in normal, and 250ºC when it short circuited (Longest time is 5 s).
The allowable minimum bending radius is 20 times of cable outside diameter when installed. After installation , the minimum bending radius is recommended for 15 times of cable outside diameter.
4. Service environment( Place )
Lead sheath cable, is suitable for environment with more serious corrosion but no much nitric acid, acetic acid and organic matter ( Such as mud, coal and strong alkaline corrosion matter with technical force, stress and vibration etc.)
Aluminium sheath cable, is suitable for environment with minor corrosion and required to bear a certain mechanical force ( For example, connected with transformer directly and laying at bridge opening or in shaft etc.)
Metal plastic compound sheath cable is suitable for general damp and warm place , no corrosion or light corrosion and no direct contact with water and bear not so much technical force , pulling force , stress and vibration.
PVC outer sheath cable is mainly used in cable line with general fire-proof requirement and insulation requirement for outer sheath.
PE outer sheath cable is mainly suitable for directly buried laying cable line with higher requirement on outer sheath insulation, low temperature environment under 20ºC, or soaked place by chemical liquid and low toxicity requirement when cable burns, when PE outer sheath is used in tunnel or shaft , fire-control and flame-retardant measures should be adopted if necessary.
- Model and Name of product
| Modello | Name of cable |
| Copper core | |
| YJLW02 | XLPE insulated corrugated aluminium sheath or welding aluminium sheath PVC sheath power cable |
| YJLW03 | XLPE insulated corrugated aluminium sheath or welding aluminium sheath PE sheath power cable |
| YJLW02-Z | XLPE insulated corrugated aluminium sheath or welding aluminium sheath longitudinally water blocking PVC sheath power cable |
| YJLW03-Z | XLPE insulated corrugated aluminium sheath or welding aluminium sheath longitudinally water blocking PE sheath power cable |
| YJQ02 | XLPE insulated lead sheath PVC sheath power cable |
| YJQ03 | XLPE insulated lead sheath PVC sheath power cable |
| YJQ02-Z | XLPE insulated lead sheath PVC sheath longitudinally water blocking power cable |
| YJQ03-Z | XLPE lead insulated lead sheath PV sheath longitudinally water blocking power cable |
- Conductor structure , specifications , insulation thickness
| Specifications Conductorcross-section (mm2) | structure | Minimum number of single wire in conductor | Maximum of conductordirect-current resistance(Ω/km) | Insulation nominal thickness |
| 800 | Round conductor/Segmental conductor | 53 | 0.0221 | 34 |
| 1000 | Segmental conductor | 170 | 0.0176 | 33 |
| 1200 | Segmental conductor | 170 | 0.0151 | 33 |
| 1400 | Segmental conductor | 170 | 0.0129 | 32 |
| 1600 | Segmental conductor | 170 | 0.0113 | 32 |
| 1800 | Segmental conductor | 265 | 0.0101 | 31 |
| 2000 | Segmental conductor | 265 | 0.009 | 31 |
| 2200 | Segmental conductor | 265 | 0.0083 | 31 |
| 2500 | Segmental conductor | 265 | 0.0073 | 31 |
7. Representation method of product
For example
UN. Single-core copper conductor with rated voltage of 290/500 KV, nominal sectional area of 1200 mm2, so XLPE insulated corrugated aluminium sheath PVC sheath power cable will be represented as : YJLW02-290/500 KV – 1×1200 GB/T 22078.2-2008.
B. Single-core copper conductor with rated voltage of 290/500 KV , nominal sectional area of 2500 mm2, so XLPE insulated corrugated lead sheath PVC sheath longitudinally water blocking power cable will be represented as : YJQ03-Z-290/500 KV- 1×2500 GB/T22078.2-2008.
