Lühivastus

Lühivastus, also known as short circuit, is an electrical phenomenon that occurs when the normal high resistance of an electrical circuit is bypassed by a low resistance or direct connection, allowing a high electric current to flow. This can lead to excessive heat generation, potential equipment damage, and in severe cases, fires or explosions. Short circuits are typically caused by accidental contact between live electrical conductors or between a live conductor and ground.

The primary causes of short circuits include:

1. Insulation failure: Wear and tear, damage, or poor quality of insulation can lead to accidental contact between conductors.

2. Improper installation: Faulty wiring, such as crossed wires or improperly connected components, can create unintended paths for current flow.

3. Physical damage: Mechanical stress, such as bending or twisting wires, can cause insulation to break down and expose the conductor.

4. Moisture or contaminants: Water, dust, or other conductive substances can bridge the gap between conductors, creating a short circuit.

Short circuits can be detected using various methods, such as continuity testing, insulation resistance testing, or visual inspection. To prevent short circuits, it is essential to use high-quality insulation materials, follow proper installation procedures, and regularly inspect and maintain electrical systems. In cases where a short circuit has occurred, it is crucial to immediately disconnect the power source and consult a qualified electrician to identify and rectify the issue.