70mm aluminium cable wire lv underground 4c 70mm2 xlpe power cable

 a, Cores and sections

1,  2,  3,   3+1,   3+2,    3+3,  4,    4+1,    4+2,   5 and so on.

No. Of Core and Sectional Area(mm2) :
1 Core 1.5-800     25-800     25-1200     25-1200     35-1200     50-1200     50-1200     50-1200
2 Core 1.5-185     25-185
3 Core 1.5-400     25-400     25-400     25-400     35-400     50-400     50-400     50-400
4 Core 2.5-400     25-400
5 Core 2.5-400       25-400 

b, Construction:

Conductor: Solid or stranded Aluminum
Insulation: Cross-linked polyethylene (XLPE) or Polyvinyl chloride (PVC)
Filler: Polypropylene filament with lapped binding tape
Binder: Binding tape
Sheath: Polyvinyl chloride (PVC)

c, 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

d. Operating Features:
 1)The maximum conductor operating temperature: 90°C
During short circuit (lasting less than 5 seconds) the maximum temperature of the cable conductor shall not be above 250°C
Environment temperature should be no lower than 0°C for laying the cable.
2)Bending Radius of the Cable:
Single Core Cable: Non Armored Cable 20D, Armored Cable 15D
Cores Cable: Non Armored Cable 15D, Armored Cable 12D.
 Remarks: D means practical external diameter of the cable

e, Features

 XLPE  insulated power cable do not has excellent electric, mechanical properties,but also has powerful resistance against chemical corrosion,heat resistance and enviromental stress resistance. Its structure is simple. The long period operating temperature is +90 °C. It is conveninet to use and can be laid with no restriction of different level.

XLPE insulated steel wire armoured power cable: XLPE/PVC 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, environmetal stress resisting antichemical corrossion, and it is simple construction, using convenient and higher operating of long term temperature. It can be laid with no drop restriction.

Various of flame-retardant and non-flame retardant XLPE cable can be manufactured with three technology(peroxide, silane and irradiation crosslinking). The flame-retardant cable covers all kinds of low-smoke low-halogen low-smoke halogen free, and non-smoke nonhalogented and three classes of A, B, C.