We produced according to National Standard of GB/Z18890.2-2002 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 127/220KV, but it is not suitable for cable in special use, such as submarine cable.
Characteristics of cable
Rated voltage of cable is U0=127KV、U=220KV、Um=252KV.
The allowable maximum temperature of cable conductor is 90℃ when it runs in normal , and 250℃ when it short circuited (Longest time is 5s).
The minimum bending radius of cable installation is recommended to 20 times of outer diameter of cable.
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, pulling 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 fore , 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 flame0retardant measures should be adopted if necessary .
Representation method of product
JLW02-127/220KV-1×630 GB/Z18890.2-2002
A. Single-core copper conductor with rated voltage of 127/220 KV, nominal sectional area of 630 mm2, so XLPE sheath insulated corrugated aluminium sheath PVC sheath power cable will be represented as : YJLW02-127/220 KV -1×630 GB/Z18890.2-2002.
B. Single-core copper conductor with rated voltage of 127/220 KV, nominal sectional area of 300 mm2, so XLPE sheath insulated corrugated lead sheath PVC sheath longitudinally water blocking power cable will be represented as : YJQ03-Z-127/220 KV -1×300 GB/Z18890.2-2002.
Since 1966, Huiyou Cable has been developing an entire range of XLPE Insulated Cable for high voltage-transmission. The 220 KV XLPE Insulated Power Cable and Water Blocking Power Cable we produced is according to National Standard of GB/Z18890.2-2002 of the People’s Republic of China.
More information:
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