IEEE Guide for Sulphur Hexaflouride (SF6) Gas Handling for High-Voltage (over 1000 Vac) Equipment

Abstract

Significant aspects of handling SF6 gas used in electric power equipment such as gas recovery, reclamation, recycling in order to keep the gas permanently in a closed cycle and aid to prevent any deliberate release in environment are described. The purpose of this guide is to provide state-of-the-art technologies and procedures to reduce SF6 gas emission to a minimum level for the electric power equipment to preserve the environment. All the aspects for consideration during commissioning and recommissioning, topping up, refilling, checking the gas quality at site, sampling and shipment for off-site gas analysis, and recovering and reclaiming during normal operation and at the end of the life of power equipment while dismantling will be included in this guide. The state-of- the art tools and measuring devices including the necessary personnel protective equipment is also presented. The basis for the preparation of this guide is CIGRE Brochure No. 276, Guide for preparation of customized “Practical SF6 handling instructions,” August 2005 edition, developed by the Study Committee B3, Task Force B3.02.01.