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

Significant aspects of handling SF^6 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 functional level for the electric power equipment to preserve the environment. This guide will include 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. This guide also presents the state-of-the art tools and measuring devices including the necessary personnel protective equipment. 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.