Iec 60502 Standard Three Core Cables
Tus coj nkauj: 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.
Kev rwb thaiv tsev: 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
Tej cuab yeej (yam ua tau)
Round Steel Wire Armored Cable Diameter
|
Virtual Diameter Under Armor Layer (lub hli)
|
Armored Cable Cuam (lub hli)
|
|
|---|---|---|
|
>
|
<
|
|
|
-
|
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 (lub hli)
|
Galvanized Steel/Steel (lub hli)
|
Aluminum/Aluminum Alloy (lub hli)
|
|
|---|---|---|---|
|
>
|
<
|
|
|
|
-
|
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); Txog 90 ° C (XLPE or EPR insulation)
Temperature range: -5° C (PVC Lub tsho); -20° C (Ntawm Tsho)
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 (Ntawm Tsho)
Bend radius: 15 x ntawm
|
Nominal Cross Section (mm2)
|
|
Unarmored Cable
|
Round Steel Wire Armor
|
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Insulation Nominal Thickness (lub hli)
|
Copper Strip Thickness (lub hli)
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Copper Wire Shield Area (mm2)
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Nominal Jacket Thickness (lub hli)
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AO Diameter (lub hli)
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Approximate Weight (kg/km)
|
Nominal Pad Thickness (lub hli)
|
Armor Thickness (lub hli)
|
AO Diameter (lub hli)
|
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
|
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
...
|
Daim ntawv thov:
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, Sab Hauv Tsev Conduits, sab nraum zoov, buried and in water, zoo li rau lub installation ntawm cables mus rau kev lag luam, Cov Chaw Nres Nkoj, Thiab Chaw Nres Tsheb Hluav Taws Xob.
