We produced according to National Standard of GB/T 22078.2-2008 of the People’s Republic of China.
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.
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 90℃ when it runs in normal, and 250℃ 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.
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 20℃, 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
|
Model
|
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
|
0.0090
|
31
|
|
2200
|
Segmental conductor
|
265
|
0.0083
|
31
|
|
2500
|
Segmental conductor
|
265
|
0.0073
|
31
|
Representation method of product
●For example
A. 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.
More information:
http://www.newmadinaapparels.com
http://www.cncmachoem.com
http://www.cncmachiningworks.com
http://www.starindustrys.com
