Moving Toward SF6-Free High Voltage Circuit Breakers

This document, "Moving Toward SF₆-Free High Voltage Circuit Breakers: Considerations for Adopting Vacuum Breaker and Fluorinated Gas Alternative Technologies," summarizes information about key alternatives for high voltage equipment, including recent developments and potential considerations for adopting SF₆-free insulated equipment. This work represents EPA’s joint efforts with the industry to identify options for effective SF₆ emission reductions.

The document provides an overview of two promising options to replace high voltage SF₆ equipment:

1. Vacuum circuit breaker technologies
2. Fluorinated gas mixtures

• Moving Toward SF6-Free High Voltage Circuit Breakers (pdf) (1.05 MB, October 2020, 430-R-20-007)
  Summary of information about key alternatives for high voltage equipment, including recent developments and potential considerations for adopting SF6-free insulated equipment