600V~25KV Cross-Linked Polyethylene Insulated and Polyvinyl Chloride Sheathed Cables

Application
600V~25KV Cross-Linked Polyethylene Insulated and Polyvinyl Chloride Sheathed Cables are used as wiring for power and equipment.

Construction features

(1)Conductor: untinned soft annealed stranded or solid copper wires
(2)Conductor screen (voltage >2001V)
(3) Insulation: XLPE
(4)Insulation screen (voltage > 2001V)
(5)Copper tape shielding (voltage > 2001V)
(6)Two or more cores are twisted together, cable core covered with proper separator
(7)Sheath: PVC

Physical and Electrical Properties Comparison of XLPE, PE and EPR

Items XLPE PE EPR
Physical Properties Before Ageing Tensile strength (kg/mm2)

Elongation (%)

1.5 ~ 2.3

500 ~ 600

1.2 ~ 1.5

500 ~ 700

0.4 ~ 0.9

400 ~ 600

After Ageing 100°C

120°C

150°C

Excellent

Excellent

Good

Good

Melt

Melt

Excellent

Good

Fairly Good

Hot Deformation at 150’C

Oil Resistance at 70’C

Good

Good

Melt

Good

Good

Poor

Electrical Properties Volume resistivity at 20’C (Ω.cm)

Dielectric constant tangent (50Hz)

Dielectric Less Tangent (50Hz)

Dielectric Strength (KV/mm)

>1016

2.3

0.05

30~50

>1016

2.3

0.05

30~50

>1015

2.3

0.3

30~45

Max. operational conductor temperature (‘C) 90 75 90
Max. conductor temperature at short circuit (‘C) 250 150 250

Related Sub-categories

Extra High-Voltage Cross-Linked Polyethylene Insulated Power Cable (69kV~161 kV)


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