Nyy/Nayy/Nycy/Nysy/Nycwy Copper Underground Electrical Power Cable
PVC insulated power cable is suitable for laying fixed in power transmission and distribution lines with A.C. 50HZ and rated voltage of 0.6/1kV.
XLPE insulated power cable has a number of advantages compared with paper insulated and PVC insulated cables. XLPE cable has high electric property, mechanical property, heat aging performance, environmental stress crack resistance, chemical corrosion resistance, and it also has simple structure, convenient operation and it is not restricted by laying in large difference of level. It can be applied in high temperature of 90 degree for a long time.
IEC 60502, IEC60332, IEC 60754
1). Rated Voltage, No. of Core and Range of Sectional Area
|Rated voltage (kv) |
Sectional area (mm2)
No. of core
2). DC resistance: conductor resistance of finished cable at 20ºC per kilometer is not more than the following values.
|Nominal section area (mm2)||1.5||2.5||4||6||10||16||25||35||50||70||95||120||150||185||240||300||400||500||630||800|
3). Voltage Test and Partial Discharge Test
|Rate voltage Uo (kv) |
|0.6/1||1.8/3||3.6/6||6/6 6/10||8.7/10 8.7/15||12/20||18/20 18/30||21/35||26/35|
|Partial discharge test||Test voltage||–||–||6.2||10.4||15.1||20.8||31.1||36.3||45|
|Cu or AL conductor XLPE insulated PVC sheathed power cables.||For laying indoors, in tunnels, in ducts. Able to bear extermal mechanical force but not large pulling forces. Single core cables are impermissible to be laid in magnetic ducts.|
|Cu or AL conductor XLPE insulated PE sheathed power cables.|
|Cu or AL conductor XLPE insulated PVC sheathed internal steel tape armoured power cables.||For laying indoors, in tunnels, in ducts and underground. Able to bear extermal mechanical force but not large pulling forces, Impermissible to use single core cable in A.C circuit.|
|Cu or AL conductor XLPE insulated PE sheathed internal steel tape armoured power cables.|
|Cu or AL conductor XLPE insulated PVC sheathed internal steel wire armoured power cables.||For laying in underground areas along route with large difference of elevation, in shafts and in water, able to bear a corresponding pulling forces and external mechanical forces.|
|Cu or AL conductor XLPE insulated PE sheathed internal steel wire armoured power cables.|
power cable package picture :
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