How many ohms is considered a low-resistance connection?

A low-resistance connection is typically defined as one that has a resistance considerably less than the standard impedance found in most electrical circuits. In many electrical standards and practices, a resistance of less than 1 ohm is regarded as low resistance. This threshold allows for efficient current flow with minimal energy loss, which is crucial in applications where resistance can lead to excess heat generation and reduced performance.

Connections that are meant to be low-resistance—such as those in critical power distribution systems, grounding systems, or connections in sensitive electronic devices—are designed to have less than this 1-ohm threshold. Keeping resistance low ensures that electrical devices operate correctly and safely by minimizing voltage drops and avoiding overheating, which could result from higher resistances.

Higher resistance levels, such as 5 ohms or 10 ohms, are considered significantly more resistive, potentially leading to problems in electrical performance and safety. Therefore, a connection measured at less than 1 ohm is well within the acceptable range for a low-resistance connection, ensuring optimal performance in electrical applications.