IEC TR 62271-303:2008 PDF Download

IEC/TR 62271-303:2008 is a standard that provides guidelines for the use and handling of sulphur hexafluoride (SF6) in high-voltage switchgear and controlgear. SF6 is a highly potent greenhouse gas, and its emission must be minimized to reduce its impact on the environment. The standard covers various procedures, including installation, commissioning, normal and abnormal operations, disposal, storage, and transportation of SF6.

The standard emphasizes the importance of safety and environmental compatibility while working with SF6. It sets minimum requirements to ensure the safety of personnel and to minimize SF6 emissions. The previous edition of the standard, IEC 61634, focused on safety, but IEC/TR 62271-303:2008 has a stronger focus on environmental compatibility.

The standard includes the latest information and updates on the concept of SF6 reuse. SF6 can be recovered and reclaimed for reuse on-site or returned to the gas supplier for the production of "technical grade SF6". Detailed procedures for appropriate SF6 handling are provided, along with descriptions of state-of-the-art equipment and measuring devices.