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PVC Insulated Single Phase Concentric Aluminum Cables KS 04-1022
Type of cable: Single Phase Concentric Cable
Phase Conductor: Solid Aluminum
Insulation: XLPE
Neutral Conductor: Aluminum
Sheath: LLDPE
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This specification is for PVC insulated single phase concentric cables with circular stranded Aluminum conductors for operation up to and including 1000 Volts between phases and 600 Volts to earth.The cable shall have a central phase conductor insulated with red PVC and concentric layer comprising bare aluminum wires (combined neutral-earth conductor) and out sheath in black PVC.
The concentric cables are used as electric service entrance from the power distribution network until the meter panel (especially where it is required to prevent "black" losses or electric power robbery), and as feeder cable from the meters panel until the panel or general distribution panel, just as it is specified in the National Electrical Code. This type of conductor can be used in dry and wet places, directly buried or outdoors; its maximum temperature of operation is 70ºC and its voltage of service for all the applications is 600V.
The cable shall be designed and manufactured in accordance with IEC 60502-1 and Kenya Standard KS 04-1022.
Concentric Aluminum Cables Parameter
| Table 2: Characteristics (as per KS 04-1022) | ||||||||
Phase Conductor | Insulation Thickness | Concentric Neutral Conductor | Minimum Lay Length | Oversheath Thickness | Approx. Overall Diameter | Maximum Conductor DC Resistance Per 1000m of Cable at 20°C | ||
| Nominal Area mm² | No. /Dia. mm | mm | No. /Dia. mm | mm | mm | mm | Phase ohms | Neutral ohms |
| 10 | 7/1.35 | 1.55 | 23/1.13 | 146.5 | 1.4 | 12.21 | 3.08 | 1.335 |
| 16 | 7/1.70 | 1.55 | 26/1.13 | 155 | 1.4 | 13.34 | 1.91 | 1.808 |
| 25 | 7/2.14 | 1.60 | 29/1.13 | 165 | 1.5 | 14.88 | 1.20 | 1.0586 |
| 35 | 19/1.53 | 1.65 | 27/1.35 | 178 | 1.6 | 16.75 | 0.868 | 0.7966 |
