The Indian government has set very high targets for the power sector in the 13th five-year plan, besides trying to achieve the target set for the 12th five-year plan. Consequently, the transmission network will have to match the installed power generation capacity. But while there has been an increase in demand for Electrical Power Generation & Transmission, there exist a few hindrances, which include:
High cost to install new Power lines
Difficulty in acquiring Tower sites
Right of way (ROW)
Time involved in constructing new Power lines
Provision for future contingencies
Conductor AAC has been widely used in power transmission lines with various voltage levels, because they have such good characteristics as simple structure, convenient installation and maintenance, low cost large transmission capacity. Classes 1 AA and A are used primarily for overhead transmission and primary and secondary distribution, where ampacity must be maintained and a lighter conductor (compared to ACSR) is desired, and when conductor strength is not a critical factor. Classes B and C are used primarily as bus, apparatus connectors and jumpers, where additional flexibility is required and are also suitable for laying across rivers valleys and the places where special geographical features exist. It is mainly used for electric distribution lines with little span, less stress.
Bare AAC wire is a concentric-lay-stranded conductor consisting of hard drawn aluminum wires available in both single-layer and multi-layer constructions. Shashi Cables AA conductor ensuring purity of min.99.55% 1350-H19 Aluminum. The temperature for continuous use is up to 75℃. Aluminum 1350 wires are concentrically stranded and wrapped helically around a central wire. Each successive layer has six wires more than the previous underlying layer. AAC also features dimensional accuracy, excellent conductor of heat and electricity, efficient performance, and advanced electrical properties.
Aluminum 1350-H19 wires, concentrically stranded. 1 Classes refer to stranding and are an indication of relative conductor flexibility, AA being the least flexible, C the most flexible