1.Application XLPE insulated power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric strength, mechanical strength, high-ageing resisting, environmental stress resisting aiti-chemical, corrosion, and simple construction, using  convenient and higher operating of long term temperature. It can be laid with no drop restriction. Various of flame-retardant XLPE cable can be manufactured with three technology .The flame-retardant cable covers all kinds of low-smoke, halogen free, and non-smoke non-halogenated and three classes of A,B,C. 2.Construction Scope of XLPE cable Type No. of Core Nominal cross-section Â
Cross-section area of neutral conductor In 3+1cores and 3+2cores should conform to specification of following table:
Nominal cross-section
Main core
2.5
4
6
10
16
25
35
50
Â
Neutral core
1.5
2.5
4
6
10
16
16
25
Nominal cross-section
Main core
70
95
120
150
185
240
300
400
Â
Neutral core
35
50
70
70
95
120
150
185
3. Characteristic D.C Resistance of finished cable at 20ºC per km is not more than the following:
Nominal cross-section mm2
15
2.5
4
6
10
16
25
Cu core
12.1
7.41
4.61
3.08
1.83
1.15
0.727
Al core
18.1
12.1
7.41
4.61
3.08
1.91
1.20
Nominal cross-section mm2
35
50
70
95
120
150
185
Cu core
0.524
0.387
0.268
0.193
0.153
0.124
0.0991
Al core
0.868
0.641
0.443
0.320
0.253
0.206
0.164
Nominal cross-section mm2
240
300
400
500
630
800
1000
Cu core
0.0754
0.0601
0.0470
0.0366
0.0283
0.0221
0.0176
Al core
0.125
0.100
0.0778
0.0605
0.0469
0.0367
0.0291
Voltage test: Each drum of finished cable should withstand power frequency voltage 3.5kV for 5 minutes,the insulation is not breakdown. Service conditions and operation parameters of Cable: The cable is applied to fixed installation for rated voltage 0.6/1kV of power transportation and distribution line. Max. rated temperature of conductor. nominal operating 90ºC Short circuit: max. for 5 sec.250ºC The cable can be laid without drop restriction, and the environment temperature shall not be lower than 0ºC. 4.Standard Our XLPE cable can be manufactured according to the company's specification which is equivalent to IEC 60502,IEC60332,IEC60754. Some indexes are superior to above international standard. 5.Drawing
Â
1.Application XLPE insulated power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric strength, mechanical strength, high-ageing resisting, environmental stress resisting aiti-chemical, corrosion, and simple construction, using  convenient and higher operating of long term temperature. It can be laid with no drop restriction. Various of flame-retardant XLPE cable can be manufactured with three technology .The flame-retardant cable covers all kinds of low-smoke, halogen free, and non-smoke non-halogenated and three classes of A,B,C. 2.Construction Scope of XLPE cable Type No. of Core Nominal cross-section Â
