Laying long high-voltage (HV) AC cables, particularly in urban or environmentally sensitive areas, presents unique challenges that require specialized solutions.

• Mechanical Damage: Improper tension and excessive friction during the pulling process can cause damage to the cable sheath. Our tension stringing equipment, including OHTLstringingequipment.com/Hydraulic-Conductor-Tensioners.html target='_blank'>Tensioners and pullers, is designed with precision control systems to maintain constant tension and speed, minimizing the risk of mechanical stress.

• Reactive Power and Voltage Control: Long AC cables produce significant reactive power due to their capacitance, which can cause voltage rise. This often requires the use of shunt reactors to compensate for the reactive power and maintain stable system voltage.

• Switching Transients: Energizing or de-energizing long HV AC cables can create high over-voltages. Careful system design and the use of appropriate switching devices are crucial to protect equipment and ensure grid stability.

• Thermal Management: The ability of the surrounding soil to dissipate heat is critical for underground cables. Poor thermal conditions can reduce a cable's current-carrying capacity. Our equipment helps with precise cable placement and depth to optimize heat dissipation.