Must Know About Gap Conductor

July 08,2021

The increase in power demand has forced the power grid to seek more efficient solutions. Gap conductor is introduced into our lives to increase capacity, now taking time to know it.


gap conductor usage


Gap Conductor


It is a kind of special overhead conductor concentrically stranded by extra high strength core and super thermal-resistant aluminum alloy wire with a special"gap type structure".


gap conductor


We use shaped wire for the inner layer to ensure uil izing the gap between steel core and thermal-resistant aluminum alloy.Fill the gap with thermal-resistant grease to prevent fraction between steel core and the thermal-resistant aluminum alloy, letting them move separately. Thus, it can transfer the tension on the aluminum alloy partto the steel core through a special stringing method, making steel core inherit all the tension and the conductor linear coefficient will be the same as the steel core.


Nearly 40 years ago the GAP Conductor was actually developed as a low sag conductor. Along with the progression of the warm immune aluminium zirconium composites and great tuning of non-round trapezoidal cables, the concept of this conductor was reexamined causing the G( Z) TACSR conductor along with trapezoidal aluminum zirconium cords with all layers.


Why Gap Conductor

Due to the operating temps of up to 210 ° C these conductors can easily hold up against, the GAP conductor layout supplies the probability to improve the ability of existing product lines by fifty to 100% for the very same conductor dimension while supplying superb droop characteristics.


Switching out the installed conductors through G( Z) TACSR is a very cost-efficient option to up price existing transmission lines quickly framework. Modification or even encouragement of the towers is actually really minimal or not needed.



Along with the same tower runnings a GZTACSR conductor can easily hold up to pair of opportunities the score of a conductor with the exact same dimension it would substitute. Pressure and capacity of a twin GZTZACSR "Matthew" conductor compared to a triple Araucaria AAAC conductor.


Mechanical And Electrical Characteristics

The aluminium blend utilized for the trapezoidal cords is actually aluminium lightweight zirconium. This could be either Tal or Z-Tal depending on the current bring ability increase called for. For both Tal and also ZTal the toughness attributes are not lowered through thermic cycles around the optimum temperature level given in the table below.


Over the stringing temp the thermic expansion attribute of the space conductor is that of the steel core, which enables a small sag at higher operating temps. Listed below the stringing temperature level the features coincide when it comes to a mechanically comparable ACSR conductor. In heavy load health conditions (small temperatures, heavy triumphes, ice) the aluminium lightweight is contributing to the stamina of the space conductor.



The Gap conductor features a core of high durability steel, neighbored by a little void full of temperature level resisting oil and also, stacked around this void, circular layers of trapezoidal aluminium lightweight alloy cords. The loading factor of the AlZr levels can easily reach out to 98.5% offering the option to help make optimal use the optimum reasonable external diameter of the conductor. The aluminum "pipe" formed due to the trapezoidal wires allows the AlZr coatings to move freely over the steel primary.


gap conductor


How to install

To a big degree the setup of a gap conductor and an ACSR are actually identical. The difference is actually that currently of installation all pressure is actually related to the steel primary on which a steel dead-end clamp is actually pressed. The aluminium part is kept holding on the steel core as a dead weight. After a through the night settlement deal time frame, the aluminum sleeves are actually compressed over the conductor and also the steel.


For more information about gap conductor, any interests, please contact us.