IEEE PC37.60/D6, Jun 2009 is a draft standard for automatic circuit reclosers and fault interrupters used in alternating-current systems up to 38 kV. It focuses on the technical requirements that help these switching devices operate consistently in power distribution applications, where interruption, reclosing, and fault isolation can affect service continuity and equipment protection. For utilities and engineering teams, IEEE PC37.60/D6, Jun 2009 provides a structured reference for design, testing, and expected performance.

About IEEE PC37.60/D6, Jun 2009

This draft document addresses the specification and evaluation of automatic circuit reclosers and fault interrupters intended for AC distribution systems at voltages up to 38 kV. It is relevant to equipment used to detect and clear faults, then restore service when conditions permit. By defining technical expectations around operation and performance, IEEE PC37.60/D6, Jun 2009 supports more consistent engineering decisions, product comparison, and conformity assessment within power, energy, and industry applications.

Where is IEEE PC37.60/D6, Jun 2009 used?

IEEE PC37.60/D6, Jun 2009 is commonly used in medium-voltage distribution environments where automatic interruption and reclosing functions are needed. That includes overhead and feeder-based utility networks, substations, and related switching equipment for alternating-current systems up to 38 kV. It is also useful in procurement and engineering workflows for selecting reclosers and fault interrupters, especially when coordinating protection behavior and system restoration requirements in power delivery infrastructure.

Importance in practice

This standard matters because reclosers and fault interrupters play a direct role in fault clearing, system reliability, and worker safety. Using a defined technical reference helps reduce uncertainty in design, testing, and acceptance processes, while also supporting consistency across vendors and projects. For buyers and engineers, IEEE PC37.60/D6, Jun 2009 can help align expectations for ratings, performance, and compliance when evaluating equipment for distribution systems.

• Automatic circuit reclosers
• Fault interrupters for AC systems
• Up to 38 kV distribution applications
• Draft technical requirements and evaluation
• Power system protection and service restoration