Medium Voltage Cables | |||
Medium Voltage Cables to BS 6622 | Medium Voltage Cables to IEC 60502 | Medium Voltage Cables to VDE 0276 |
Medium Voltage Cables to JIS C 3606-2003
Three Core Cables(triplex)
Application
This product is used for an underground distribution cable for the lead-out parts of substations of general power
distribution lines including high-capacity power distribution, cable tunnels, pipelines, directly embedded types,
raising parts of telephone poles, etc.
Standards
JIS C 3606-2003 (6600V)
Construction
Conductor: Plain annealed copper with JCS C 3102.
Conductor Screen: The conductor screen consists of an extruded layer of non metallic, semi-conducting
compound firmly bonded to the insulation to exclude all air voids.
Insulation: XLPE.
Insulation Screen: The insulation screen consists of an extruded layer of non metallic, semi- conducting
compound extruded over the insulation. The extruded semi-conducting layer shall consist of bonded or cold
strippable semi-conducting compound capable of removal for jointing or terminating. As an option, a semi-
conducting tape may be applied over the extruded semi-conducting layer as a bedding for the metallic layer. The
minimum thickness is 0.5 mm. The screen is tightly fitted to the insulation to exclude all air voids and can be
easily hand stripped on site.
Metallic Sreen: By sufficiently winding of a soft copper tape on an external semiconductive layer, each core shall
be shielded,the tape is wound with overlapping about one-sixth of its width or the equivalent of that.
Over Sheath: Black, PVC or PE.
Identification of wire cores:Wire core identification shall be performed with 3 colors, that is, white, red and blue.
PHYSICAL PROPERTIES:
Operating Temperature: up to 120°C
Cold Resistant: -15 ± 0.5 °C
Three Core 6600V (Test Voltage=17KV)
Dimensional Data
Nom.Cross- Section Area |
Nom. Insulation Thickness |
Nom. Sheath Thickness |
Wire Core Diameter |
Approx. Overall Diameter |
Approx. |
||
---|---|---|---|---|---|---|---|
CVT |
CET |
CET/F |
|||||
mm² |
mm |
mm |
mm |
mm |
kg/km |
||
22 |
4.0 |
2.0 |
19 |
42 |
1590 |
1450 |
1550 |
38 |
4.0 |
2.1 |
21 |
46 |
2190 |
2020 |
2140 |
60 |
4.0 |
2.2 |
23 |
50 |
2970 |
2780 |
2910 |
100 |
4.0 |
2.4 |
26 |
57 |
4340 |
4100 |
4260 |
150 |
4.0 |
2.6 |
30 |
65 |
5980 |
5680 |
5880 |
200 |
4.5 |
2.8 |
33 |
72 |
7920 |
7380 |
7740 |
250 |
4.5 |
3.0 |
35 |
76 |
9320 |
8910 |
9190 |
325 |
4.5 |
3.1 |
39 |
85 |
11600 |
11100 |
11440 |
400 |
4.5 |
3.3 |
41 |
89 |
14000 |
13500 |
13840 |
500 |
4.5 |
3.5 |
45 |
98 |
17000 |
16400 |
16800 |
600 |
5.0 |
3.7 |
49 |
106 |
20200 |
19600 |
20000 |
Electrical Data
Nom.Cross- Section Area |
Max. Conductor Resistance (20 °C) |
Min. Insulation Resistance |
Electrostatic Capacitance |
---|---|---|---|
mm² |
Ω/km |
MΩ-km |
µF/ Km |
22 |
0.849 |
2500 |
0.27 |
38 |
0.491 |
2000 |
0.32 |
60 |
0.311 |
2000 |
0.37 |
100 |
0.187 |
1500 |
0.45 |
150 |
0.124 |
1500 |
0.52 |
200 |
0.0933 |
1500 |
0.51 |
250 |
0.0754 |
1500 |
0.55 |
325 |
0.0579 |
1500 |
0.61 |
400 |
0.0471 |
1000 |
0.68 |
500 |
0.0376 |
900 |
0.74 |
600 |
0.0314 |
900 |
0.71 |
Note:C:XLPE V:Vinyl E:PE F:Flame retardant