CAI Self-Supporting Cables Application
This cable usually used for urban and rural overhead secondary distribution networks, with voltages up to 1000V. They permit longer spans, lower mounting, minimum support, and simplified installation, particularly among trees or in congested areas. It also offers maximum personnel safety and protection against outage. Resistance to abrasion, flexing, and effects of heat, moisture, sunlight and cold assure high dependability through long years of services.
CAI Self-Supporting Cables Strandard
NTP-IEC 60228: Conductors of insulated cables
NTP 370.254: Cables for overhead distribution networks self-supporting XLPE insulated of rated voltages up to and including 0.6/1 kV.
NTP 370.251: Copper cables for overhead (bare or protected) and grounded.
CAAI Self-Supporting Aluminum Conductor Cables Construction:
| Phase conductor | Hard drawn copper conductor (class 2) |
| Neutral messenger conductor | Hard drawn copper conductor (class 2) |
| Insulation | XLPE |
Electrical characteristics
Rated Voltage Uo/U (Um) : 0.6/ 1 (1.2) kV
Dielectric strength : 4.0 kV
Time of application Dielectric strength core to screen DC : 5 min.
Mechanical characteristics
Cable flexibility : Class 2 IEC 60228
Usage characteristics
Bending factor when installed : 4 (xD)
U.V resistance : Yes
Maximum operating temperature : 90 °C
Overload maximum core temperature: 130 °C
CAI CABLE PARAMETER
| Nb.of cores | Phase Cond. Cross Section [mm²] |
Total nb wires |
Phase Cond. Diam. [mm] |
Min. insulation thick. [mm] |
Neutral Cond. section [mm²] |
Neutral Cond. Diam. [mm] |
MIn.Insulat.Thi. Neutal mess. [mm] |
Nom. outer diam. [mm] |
Approx. weight [kg/km] |
| 1 | 10 | 7 | 3.9 | 1.14 | 10 | 4 | 1.14 | 12.7 | 220 |
| 1 | 16 | 7 | 4.93 | 1.14 | 16 | 5.09 | 1.14 | 14.8 | 337 |
| 3 | 16 | 7 | 4.9 | 1.14 | 25 | 6.4 | 1.14 | 18.5 | 762 |
| 3 | 35 | 7 | 7.3 | 1.14 | 35 | 7.5 | 1.14 | 23.5 | 1408 |
| 3 | 50 | 19 | 8.6 | 1.52 | 50 | 8.9 | 1.52 | 28.8 | 1925 |
| 3 | 70 | 19 | 10.3 | 1.52 | 70 | 10.7 | 1.52 | 33.0 | 2729 |