IEC 60502 Standard Three Core Cables
Conductor: Plain annealed copper or aluminum conductor.
Conductor shielding: The conductor shielding shall be non-metallic and shall consist of an extruded semi-conductive compound with a semiconductor strip applied on top of the semiconductor compound. The conductor shield is not required for PVC, EPR/HEPR insulated cables in the 1.8/3KV to 3.6/6KV range.
Insulation: 1.8/3KV and 3.6/6KV cable ranges are generally insulated with PVC, but can also be insulated with XLPE, EPR/HEPR.
Metal/conductor/insulation shield
Adhesives
Armor (optional)
Round Steel Wire Armored Cable Diameter
|
Virtual Diameter Under Armor Layer (mm)
|
Armored Cable Diameter (mm)
|
|
|---|---|---|
|
>
|
<
|
|
|
-
|
10
|
1.25
|
|
10
|
15
|
1.25
|
|
15
|
25
|
1.6
|
|
25
|
35
|
2.0
|
|
35
|
60
|
2.5
|
|
60
|
-
|
3.15
|
Armor Layer Thickness
|
Virtual Diameter Under Armor Layer (mm)
|
Galvanized Steel/Steel (mm)
|
Aluminum/Aluminum Alloy (mm)
|
|
|---|---|---|---|
|
>
|
<
|
|
|
|
-
|
30
|
0.2
|
0.5
|
|
30
|
70
|
0.5
|
0.5
|
|
70
|
-
|
0.8
|
0.8
|
Physical Properties:
Operating temperature: up to 70°C (PVC insulation); up to 90°C (XLPE or EPR insulation)
Temperature range: -5°C (PVC jacket); -20°C (PE jacket)
Short-circuit temperature (maximum duration in case of short-circuit not exceeding 5s): 140-160°C ( PVC sheath ); -40°C ( PE sheath ); -20°C ( PE sheath )
250°C (PE jacket)
Bend radius: 15 x OD
|
Nominal Cross Section (mm2)
|
|
Unarmored Cable
|
Round Steel Wire Armor
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Insulation Nominal Thickness (mm)
|
Copper Strip Thickness (mm)
|
Copper Wire Shield Area (mm2)
|
Nominal Jacket Thickness (mm)
|
AO Diameter (mm)
|
Approximate Weight (kg/km)
|
Nominal Pad Thickness (mm)
|
Armor Thickness (mm)
|
AO Diameter (mm)
|
Approximate weight (kg/km)
|
|||
|
CU
|
AL
|
CU
|
AL
|
||||||||||
|
10
|
2.0
|
0.1
|
16
|
1.8
|
23
|
650
|
460
|
1.2
|
1.6
|
1.8
|
28
|
1480
|
1290
|
|
16
|
2.0
|
0.1
|
16
|
1.8
|
24
|
840
|
540
|
1.2
|
1.6
|
1.9
|
29
|
1720
|
1410
|
|
25
|
2.0
|
0.1
|
16
|
1.8
|
26
|
1160
|
680
|
1.2
|
1.6
|
1.9
|
32
|
2130
|
1650
|
|
35
|
2.0
|
0.1
|
16
|
1.8
|
29
|
1490
|
820
|
1.2
|
2.0
|
2.1
|
36
|
2810
|
2140
|
|
50
|
2.0
|
0.1
|
16
|
1.9
|
32
|
1900
|
1000
|
1.2
|
2.0
|
2.2
|
39
|
3340
|
2450
|
|
...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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Application:
Three-core cables are designed for power distribution from 3.6/6.6KV to 19/33KV at 50Hz. They are mainly used in a wide range of applications such as power supply stations, indoor conduits, outdoor, buried and in water, as well as for the installation of cables to the industry, distribution stations, and power station cables.
