KENTER Aerial Bunched Cable (ABC) is a very novel concept for Overhead power distribution. When compared to the conventional bare conductor overhead distribution system, ABC provides higher safety and reliability, lower power losses, and ultimate system economy by reducing installation, maintenance, and operative cost. This system is ideal & safe for rural distribution and especially attractive for installation in difficult terrains such as hilly areas, forest & coastal areas, etc.
“XLPE/HDPE insulated power conductors of Aluminium (Neutral conductor and street lighting conductors if and when necessary) are laid together (twisted) around a high tensile stranded and galvanized steel (Aluminium Alloy may be used) insulated or bare messenger wire to form the Aerial Bunched Cable. This assembly is directly strung on to distribution pole/towers by means of standard hardware’s available in the market but care shall be taken to render the messenger wire completely insulated from earthing at any point of distribution.
The XLPE (Cross-linked Polyethylene) insulation is black in colour and is stabilized against deterioration caused by exposure to direct sunlight and ultraviolet radiation. XLPE is cross-linkable low-density polyethylene which is made thermoset by special formulation from the base polymer of thermoplastic low-density polyethylene. XLPE combines the best electrical properties of LDPE with superior thermomechanical properties.”
ABC is also considered to be the best choice for power distribution in congested urban areas with narrow lanes and by-lanes. In developing urban complexes, ABC is the better choice because of flexibility for rerouting as demanded by changes in the urban development plan.
ABC can be conveniently used:
1) As replacement of bare lines in Rural Areas, in woods and in other localities & narrows streets where the space is limited.
2) As replacement of bare lines where the reliability/theft of supply is of prime importance.
3) As replacement of bare lines where a high degree of stability of supply voltage is of importance.
4) In hilly terrains where the cost of erection of overhead lines or underground cable becomes very high.
5) As reinforcement of existing system without increasing voltage.
6) For temporary supplies.
PE/XLPE insulated 1.1 kv to 33 kv
As per IS: 14255 & IS: 7098-I
PE/XLPE insulated 1.1 kv to 33 kv
As per IS: 14255 & IS: 7098-I
In comparison to bare overhead power distribution lines, ABC has very high reliability in maintaining services because power and neutral conductors are insulated with the best dielectric medium, resulting in the following advantages:
1) Less fault rate on account of good protection against line and ground faults by high winds or falling trees or birds especially in hilly areas & forests as encountered in rural distribution networks.
2) High insulation resistance to earth in all seasons and polluted atmospheres. Negligible leakage currents and low losses.
3) Multiple circuits of Power and Telephone cables could be strung in the same set of poles or any other supports like walls etc.
4) Better adaptability to run concurrently with existing over-head bare conductor system without any interference.
5) High capacitance and low inductance leading to low impedance of lines.
6) Lower voltage drop, higher current capacities. VIS-À-VIS Better Voltage Regulation.
7) Longer spans and longer distance lines are possible with better system stability.
8) ABC cables are much safer than bare Conductors.
9) It can be over hung in dense vegetation and forests.
10) Additional connections can be easily and quickly made with hot-line connectors.
11) Total lines costs are reduced.
12) Maintenance is very easy.
No Comments
Sorry, the comment form is closed at this time.