Covered Conductors
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Covered Conductors
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High-performance cables for industrial and commercial power transmission. Built with high-purity aluminium or copper conductors and premium insulation, they deliver long-lasting reliability even in demanding conditions.
Applications: Power stations, factories, buildings, infrastructure.
Covered Conductors
Covered conductors consist of a conductor insulated by a covering made of insulating material(s) as protection against accidental contacts with other covered conductors and with grounded parts such as tree branches etc. In comparison with insulated conductors, this covering has reduced thickness, but is sufficient to withstand the phase-to-earth voltage temporarily
CONSTRUCTION OF COVERED CONDUCTOR
Conductor: Longitudinally water tight stranded all aluminium alloy (AAAC) or aluminium conductor steel reinforced (ACSR).
extruded semi-conducting compound.
B (INNER INSULATION) : XLPE
C (OUTER INSULATION) : UV protected and anti-tracking black coloured XLPE or HDPE.
ANTI-TRACKING PROPERTIES
Anti-tracking property is must for MVCC outer XLPE/HDPE. As per the experience of several international utilities, in the absence of anti-tracking, XLPE or HDPE, MVCC fails within a short time period of 5-6 months. Anti-tracking jacketing has been specially designed to meet the outdoor conditions and performance requirements of 13.8 KV to 34.5 KV distribution networks. The material has an excellent resistance to arc, corrosion inhibitor, fungicide activity, oil resistance, and weather conditions like humidity, pollution, presence of salt in atmosphere etc. There is a special test method for carrying out the tests for the anti-tracking in SS EN 50397-1.
BENEFITS OF COVERED CONDUCTOR
No interruptions by contact of tree branches.
No faults with short duration touching of phase conductors during wind conditions.
Phase to phase conductor distance can be reduced (reduce the tower costs).
Ideal and safer solution for installations for river, lake, railway, road crossings and in populated areas.
Can protect big birds like peacocks and flamingos etc. Ideal for installations in forest areas and in bird sanctuaries.
Covered conductors are a cheaper alternative to underground cable and also to ABC cables, especially in difficult terrain and in densely populated areas.
Lines near to areas where the public visit are not so dangerous because of accidental touching.
Overcomes costly right of way issues and line can be commissioned faster.