Sahkoja

Sahkoja is a term referring to electrical discharges, commonly known as sparks. These occur when an electric current jumps across a gap in an electrical circuit or between two conductors. This phenomenon is typically observed when the voltage difference between two points is high enough to overcome the insulating properties of the medium separating them, such as air.

The appearance of a sahkoja can range from a small, fleeting flash to a larger, more sustained arc. The color of the sahkoja depends on the gases present in the gap and the temperature of the plasma formed. Common colors include white, blue, and yellow. The sound associated with a sahkoja is often a crackling or popping noise.

Sahkoja can be both a nuisance and a hazard. In some applications, they are intentionally produced, such as in spark plugs in internal combustion engines, which ignite the fuel-air mixture. However, uncontrolled sahkoja can lead to electrical fires, damage to equipment, and electric shock. Safety measures in electrical systems are designed to prevent or minimize unwanted sahkoja. Understanding the conditions that cause sahkoja is crucial for electrical safety and engineering.