Ariel Bunched Cables, 1100 volt
Grade, are used for distributing power to individual consumers by utility
service providers like electricity Boards, electricity distributing
authorities. The cable is kept supported on poles. The line is tapped
intermittently from any required position which enables to be used in urban
as well as rural areas alike.
Configuration : Multi-core/Multi-pair.
Conductor
Phase or lighting conductor: Hard drawn Aluminium H2 or H4 grade as per
IS:8130. Messenger conductor : Aluminium Silica and Magnesium Alloy used
after treatment as per IS: 398 (part 4).
Insulation
XLPE applied by extrusion process.
Identification of Phase
By providing ridges on the insulation of phase conductors. One ridge for
1st phase,2 and 3 ridges for 2 nd and 3rd phases respectively. Neutral can
have 4 ridges, if desired.
Color of Insulation
Because the cable remains exposed to environment & sunlight
(ultraviolet radiation) the insulation is mixed with a small amount of
carbon black to stop deterioration of polythene due to U V radiation.
Assembling
The phase conductor along with the lighting conductor ( where applicable)
is twisted around messenger conductor.
Construction
The phase conductor can be of single phase and also of three phases. A
lighting conductor can be also incorporated to give supply to the street
lighting. Messenger conductor supports the weight of the cable and keeps the
assembly strung under tension. The phase conductor is made of concentrically
stranded Aluminium Wires having 7 or 19 wires. The messenger conductor is
made of specially treated Silica, Magnesium Aluminium alloy having 7 wires.
The phase conductor and lighting conductor where applicable are insulated
with XLPE (made of Sioplas Technology) compound. The messenger conductor, as
per customer's choice is kept either bare or insulated. The phase conductor
along with lighting conductor (where applicable) are twisted around the
messenger conductor (insulated or bare) and left as such. Sometimes as a
special case a neutral conductor is also provided separately, if desired, by
the user. Generally, messenger acts as earth as well as neutral.
