Which term describes a single-phase system's voltage between two phases?

In a single-phase electrical system, the term that describes the voltage between two phases is referred to as System Voltage. This concept is significant in understanding how different systems are designed and how they operate.

System Voltage is essentially the voltage measured across the source supply in a single-phase system. It represents the total voltage available for use in a circuit and is important for calculating power and ensuring that the system operates within safe limits.

In contrast, terms like Phase Voltage typically refer to the voltage of an individual phase or the voltage drop across a single component in a multi-phase system, which might cause confusion if applied to a single-phase system. Service Voltage generally pertains to the voltage provided to consumers from a utility, which may not always clarify the difference between phases. Single Voltage is less commonly used in technical language, making it less reliable for precise electrical terminology.

Understanding these definitions is crucial for lineman apprentices as it lays the groundwork for working in various electrical environments, ensuring they know how to measure and identify voltage in different configurations.