Flexible copper connections are widely used in our daily lives, and some people worry that flexible copper connections may cause insulation failure. So, what is this concern?Isn't it redundant? How to determine insulation failure in copper foil flexible connectors!

(1) Gas breakdown

When the electric field strength exceeds a certain value, the copper foil flexible connector experiences gap breakdown. If the gap is too small, it can also increase the breakdown electric field strength of the gas.. Common, due to high voltage breakdown of the capacitor, causing exposed electric sparks on the wires, and arcs when turning off the switch, these also indicate that the gaseous medium is no longer capableIt has insulating properties.

(2) Breakdown in liquid media

The electrical strength of the liquid dielectric gas is much higher than in the standard state. If the oil contains impurities, such as water, its electrical strength will drop significantly,Breakdown is highly prone to occurring.

(3) Breakdown in solid dielectrics

The forms of solid insulation breakdown in busbar expansion joints are: electrical breakdown, thermal breakdown, and electrochemical breakdown. Dielectrics of the same type with different external conditions can be usedBreakdown occurs in various forms.

Once insulation failure occurs in copper-flexible connectors, it is extremely dangerous, and the serious consequences can be unimaginable! We have measures to address such situationsCan the law prevent it?

① Electric breakdown. Due to the presence of an external electric field, ionized electrons accumulate in the strong electric field until they reach sufficient energy, causing collisions between them that result in electric breakdown.Its characteristics are fast processing and high breakdown voltage.

② Thermal breakdown. The breakdown voltage rapidly decreases with the extension of temperature and voltage effects over time. At this point, the breakdown process is related to the thermal process in the dielectric., called thermal breakdown. Constant increase in ambient temperature and voltage reduces thermal breakdown voltage; Increasing dielectric thickness reduces uniform breakdown field strength.

(3) Electrochemical breakdown. Under the effect of the electric field, chemical changes can occur in the dielectric, irreversibly increasing its conductivity,The ending causes breakdown, referred to as electrochemical breakdown. Because chemical changes generally cause the medium to lose additives, the ending mode of electrochemical breakdown is often thermal breakdown.Wear.

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