FJZ-001-3 (Four-Bundle Spacer)

1. Damping and Vibration Reduction

Uses silicone rubber as the damping element, which effectively absorbs conductor vibration energy and reduces vibration amplitude.

Provides excellent suppression of both aeolian vibrations (high-frequency, low-amplitude) and sub-span oscillations (low-frequency, large-amplitude), minimizing fatigue damage to conductors.

2. Lightweight Structure

Typically adopts a double-plate structure made of aluminum alloy, offering low mass to reduce conductor load.

Meets anti-corona requirements for high-voltage applications by optimizing surface geometry and material conductivity, suppressing partial discharge.

3. Fixed Spacing Maintenance

Ensures four-split conductors maintain a constant inter-phase spacing, preventing sub-conductors from whipping or colliding under loads such as:

Wind force (aerodynamic induced vibrations)

Ice loads (uneven mass distribution)

Short-circuit currents (electromagnetic repulsion/attraction)

Maintains the conductor bundle’s geometric stability, ensuring consistent electrical performance (e.g., uniform potential gradient, reduced corona loss).

1.Prolongs Conductor Lifespan

By effectively suppressing conductor vibrations, it reduces damage caused by fatigue and wear, thereby extending the service life of conductors and lowering line maintenance costs.

2. Enhances Line Reliability

Ensures stable conductor spacing, avoiding line faults caused by conductor collisions, and improving the reliability and safety of power line operation.

3. Convenient Installation

Some FJZ four-split spacers adopt installation methods such as preformed strands, which are relatively simple to operate, have a large contact area, uniform adhesion distribution, high grip strength, and are not prone to slippage.

1. Maintaining Conductor Spacing

Used in transmission lines with voltage levels of 500kV and above, it ensures the spacing between split conductor bundles remains unchanged, meets electrical performance requirements, and reduces surface potential gradient.

2. Suppressing Conductor Vibration

Reduces aeolian vibrations and sub-span oscillations of conductors, minimizing the impact of vibrations on conductors and towers to ensure safe and stable line operation.

3. Handling Short-Circuit Conditions

During short circuits, it prevents conductor bundles from attracting and colliding due to electromagnetic forces. Even if momentary collisions occur, it can restore the conductors to their normal state after the electromagnetic forces subside.