Application
Aerial Insulated Cables with voltages from 13.8kV - 34.5kV of spacer cable. These conductors are intended primarily for the distribution of electrical energy under normal conditions of overhead (aerial) installations. They are considered as covered conductors therefore the cables carry no voltage rating. The conductors must be installed on insulators and/or spacers adequate for the service voltage. The user may want to give consideration to the dielectric compatibility of the covering, insulator, spacer.
Description
The conductors are stranded,circular compressed aluminum. The conductor screen is the extruded Semi-conducting conductor shield in Black. The inner Insulation is mainly natural color thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE). And the outer Insulation is mainly thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE) in Black or Grey with Weather or UV resistant. This standard covers both thermoplastic and cross linked polyethylene constructions, rated for 75°C or 90°C normal service temperature.
Specifications
• ABNT NBR 11873 Covered Cables With Polymeric Material for Overhead Distribution Lines in Spacers for Voltages 13.8 kV up to 34.5 kV
Parameter
NBR 11873
15kV Aerial Insulated Cables
25kV Aerial Insulated Cables
35kV Aerial Insulated Cables
Aerial Insulated Cables with voltages from 13.8kV - 34.5kV of spacer cable. These conductors are intended primarily for the distribution of electrical energy under normal conditions of overhead (aerial) installations. They are considered as covered conductors therefore the cables carry no voltage rating. The conductors must be installed on insulators and/or spacers adequate for the service voltage. The user may want to give consideration to the dielectric compatibility of the covering, insulator, spacer.
Description
The conductors are stranded,circular compressed aluminum. The conductor screen is the extruded Semi-conducting conductor shield in Black. The inner Insulation is mainly natural color thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE). And the outer Insulation is mainly thermoplastic polyethylene (PE) or cross-linked polyethylene (XLPE) in Black or Grey with Weather or UV resistant. This standard covers both thermoplastic and cross linked polyethylene constructions, rated for 75°C or 90°C normal service temperature.
Specifications
• ABNT NBR 11873 Covered Cables With Polymeric Material for Overhead Distribution Lines in Spacers for Voltages 13.8 kV up to 34.5 kV
Parameter
NBR 11873
15kV Aerial Insulated Cables
| Nominal section | Min.No. | Max. D.C. Resistance at 20 °C | Nominal Insulation Thickness | Cable Diameter | Min. Breaking Load | Weight |
| of Wires | ||||||
| mm² | No. | Ω/km | mm | mm | daN | kg/km |
| 15kV AAC/XLPE | ||||||
| 35 | 6 | 0.868 | 3 | 13 | 455 | 185 |
| 50 | 6 | 0.641 | 3 | 14.1 | 650 | 227 |
| 70 | 12 | 0.443 | 3 | 15.8 | 910 | 298 |
| 95 | 15 | 0.32 | 3 | 17.6 | 1235 | 384 |
| 120 | 15 | 0.253 | 3 | 18.8 | 1560 | 459 |
| 150 | 15 | 0.206 | 3 | 20.5 | 1950 | 546 |
| 185 | 30 | 0.164 | 3 | 22.1 | 2405 | 658 |
| 240 | 30 | 0.125 | 3 | 24.4 | 3120 | 834 |
| 300 | 30 | 0.1 | 3 | 26.5 | 3900 | 1018 |
25kV Aerial Insulated Cables
| Nominal section | Min.No. | Max. D.C. Resistance at 20 °C | Approx. | Nominal Insulation Thickness | Cable Diameter | Min Breaking Load | Weight |
| of Wires | Screen Thickness | ||||||
| mm² | No. | Ω/km | mm | mm | mm | daN | kg/km |
| 25kV AAC/XLPE | |||||||
| 35 | 6 | 0.868 | 0.5 | 4 | 16.2 | 455 | 260 |
| 50 | 6 | 0.641 | 0.5 | 4 | 17.3 | 650 | 309 |
| 70 | 12 | 0.443 | 0.5 | 4 | 19 | 910 | 389 |
| 95 | 15 | 0.32 | 0.5 | 4 | 20.8 | 1235 | 485 |
| 120 | 15 | 0.253 | 0.5 | 4 | 22 | 1560 | 566 |
| 150 | 15 | 0.206 | 0.5 | 4 | 23.7 | 1950 | 662 |
| 185 | 30 | 0.164 | 0.5 | 4 | 25.3 | 2405 | 783 |
| 240 | 30 | 0.125 | 0.5 | 4 | 27.6 | 3120 | 972 |
| 300 | 30 | 0.1 | 0.5 | 4 | 29.7 | 3900 | 1167 |
| Nominal Section | Min.No. | Max. D.C. Resistance at 20 °C | Approx.Screen Thickness | Nominal Insulation Thickness | Cable Diameter | Min Breaking Load | Weight |
| of wires | |||||||
| mm² | No. | Ω/km | mm | mm | mm | daN | kg/km |
| 35kV AAC/XLPE/HDPE | |||||||
| 70 | 12 | 0.443 | 0.6 | 7.6 | 26.5 | 910 | 653 |
| 95 | 15 | 0.32 | 0.6 | 7.6 | 28.3 | 1235 | 770 |
| 120 | 15 | 0.253 | 0.6 | 7.6 | 29.5 | 1560 | 865 |
| 150 | 15 | 0.206 | 0.6 | 7.6 | 31.2 | 1950 | 981 |
| 185 | 30 | 0.164 | 0.6 | 7.6 | 32.8 | 2405 | 1120 |
| 240 | 30 | 0.125 | 0.6 | 7.6 | 35.1 | 3120 | 1335 |
| 300 | 30 | 0.1 | 0.6 | 7.6 | 37.2 | 3900 | 1555 |
