ELECTRICAL PROPERTIES

ITEM

UNITS

INDEX

Single-wire DC resistance of Max. +20°C

Ω/km

Conductor Diameter(mm)
0.32 0.40 0.50 0.60 0.70 0.90
236 148 95 65.8 48 29.5

wire of DC the resistance unbalance +20°C
(the average not larger than the maximum)

%

2.5 1.5 1.5 1.5 1.5 1.5
6 5 5 5 5 4

Insulation resistance of the minimum +20°C
Between each insulated conductor and other grounded and shielded insulated conductors

MΩ.km

Non-filling filling
≥10000 ≥3000

Insulation electric strength
Between the wires(3s/60s)
Between the conductor and the shield(3s/60s)

kV

2.0/1.0
6.0/3.0

Working capacitance
Below 10 pairs of cable:average/maximum
over 10 pairs of cable:average/max

nF/km

52.0+-2.0/57.0
52.0+-4.0/58.0

capacitive unbalance
Between wire and wire:max
Between wire and ground:small average
Between wire and ground: max

pF/km

0.32 0.4 0.5 0.6 0.7 0.9
250 250 250 200 200 200
570 570 570 490 490 490
2630