Construction

• HT Power Lines: Minimize power loss during long-distance transmission by operating at high voltages.
• LT Power Lines:Deliver electricity safely to end users at usable voltage levels

• HT Lines: 11 kV to 765 kV (and beyond for ultra-high voltage systems).
• LT Lines: 230V (single-phase) or 415V (three-phase).

• HT Lines: Aluminum or aluminum alloy conductors, often reinforced with steel for strength.
• LT Lines:Aluminum or copper, usually insulated when installed in urban areas.

HT lines are used for:

• Long-distance power transmission from power plants to substations.
• Interconnecting regional or national power grids.
• Supplying power to industries requiring high voltages.

LT lines supply electricity to:

• Residential households.
• Commercial establishments.
• Small and medium-sized industries.