voltage up to 35KV underground XLPE copper armoured Power cable

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underground  XLPE copper armoured Power cable: 1.Standards: IEC60502, GB12706, BS7889  2.Voltage:Up to 35KV 3.Insulation: XLPE

       

 

 Product Description

voltage up to 35KV underground  XLPE copper armoured Power cable:

 

1.Construction of underground  XLPE copper armoured Power cable:


Stranded and compacted cooper/aluminium conductor
Inner semi conductor
XLPE/pvc insulation
Outer semi conductor
Water blocking semi conducting tape
Copper wire screen plus copper tape
Polyester tape
PVC inner sheath
Steel tape armored
PVC outer sheath

 

2.Standard of underground  XLPE copper armoured Power cable

 

    IEC60502, IEC60228

 

3.construction of the power cable for different voltage grade

 

1. low  voltage  cable power cable

 

Low voltage (0.6/1 kv)

single core or multi-core

copper or aluminium conductor

pvc inusulation

steel tape armored or galvanized steel wire armored or unarmored

pvc outer sheath

power cable.

 

2. medium voltage cabel power cable

 

Voltage grade is up to 35kv,

cross-section area can be up to 1000 sqmm  (copper or aluminiun conductor).

Conductor long-time  operating temperature is 90 degrees.

In short circuit, conductor  highest temperature should be not more than 250 degrees.

1kv-35 kv 

multi-cores

copper or aluminium conductor

xlpe insulation

copper tape or copper wire screen 

galvanized steel wire armored

pvc or pe sheath

power cable

 

3. high voltage cable power cable

 

High voltage (35kv~220kv) 

copper or aluminium conductor

xlpe insulation

metal sheath (lead or corrugated aluminium)

hdpe or pvc outer sheath power cable.

Laying conditions: for lyaing  under ground with large different  altitude, be able to bear external machanical force and moderate pulling force.

 

4.More other details of underground  XLPE copper armoured Power cable:

TypeDescriptionApplication
VVCopper conductor ,PVC insulated ,PVC sheathed power cableUsed for installing indoors, in tunnel or cable trench,unable to bear extermal mechanical forces. Single core cable is not permissible to lay in magnetic duct
VLVAluminium conductor ,PVC insulated ,PVC sheathed power cable
VYCopper conductor, PVC insulated, PE sheathed power cable
VLYAluminium conductor ,PVC insulated ,PE sheathed power cable
VV22Copper conductor ,PVC insulated ,steel tape armoured ,PVC sheathed power cableUsed for Installing indoors, in cable trench or direct in ground ,able to bear external mechanical forces, but unable to bear pulling force
VLV22Aluminium conductor ,PVC insulated ,steel tape armoured ,PVC sheathed power cable
VV23Copper conductor ,PVC insualted ,steel tape armoured ,PE sheathed power cable
VLV23Alunminium conductor ,PVC insulated ,steel tape armoured ,PE sheathed power cable
VV32Copper conductor, PVC insulated, steel wire armoured,PVC insulated power cableUsed for intalling indoors, in cable or direct in ground ,able to bear external mechanical forces, but unable to bear large pulling forces
VLV32Aluminium conductor, PVC insulated ,steel tape armoured ,PVC sheathed power cable
VV33Copper conductor, PVC insulated steel wire armoured , PE sheathed power cable
VLV33Aluminium conductor , PVC insulated , streel wire armoured ,PE sheathed power cable

 

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Tell you an electrician commonly used "empirical formula": as long as the copper wire, cross-sectional area per square millimeter can be safely through the 4 - 5A rated current; in 220V single-phase circuit, the power per 1KW, the current For the 4.5A or so, in the 380V three-phase balanced circuit, the power per 1KW, the current is about 2A, the above values can be calculated using the physical formula is very close to the results, so the electrician at work, in order to Do not remember those "cumbersome" formula, remember that these can. Then according to this algorithm to know: every 1 mm square cross-sectional area of the copper wire, if used in 220V single-phase circuit, you can safely carry 1KW load through the current, if used in three-phase balanced load (such as motor) Circuit, you can safely carry 2.5KW load through the current

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