Driftspænding

Driftspænding, often translated as leakage voltage or stray voltage, refers to unwanted electrical potential differences that exist between conductive surfaces in a system. These potentials can arise from various sources, including capacitive coupling, inductive coupling, or residual charges. While not directly part of the intended circuit operation, driftspænding can be a significant concern in sensitive electronic equipment, medical devices, and electrical installations.

The presence of driftspænding can lead to several problems. In electronics, it can interfere with signal integrity, causing errors or malfunctions. For medical equipment, unexpected voltage differences can pose a safety hazard to patients and operators, potentially causing muscle contractions or electrical shock. In industrial settings, driftspænding can contribute to electromagnetic interference (EMI) and radio frequency interference (RFI), affecting the performance of other nearby devices.

Mitigation strategies for driftspænding typically involve proper grounding and shielding techniques. Ensuring a robust and low-impedance connection to earth ground for all conductive components is crucial. Shielding enclosures can prevent capacitive and inductive coupling from external sources. Additionally, filtering and surge protection devices can help to suppress or divert unwanted voltage transients. Understanding and controlling driftspænding is essential for ensuring the reliable and safe operation of electrical and electronic systems.