SF6 or sulfur hexafluoride gas, is a widely refrigerant gas in gas-insulated substations and circuit breakers. Do you know some managements about SF6?
Here I will tell you as followings:
1. Equipment – The equipment type and the environment in which the gas in being used, determines the risk levels, protection needed and the handling procedures. Equipment types may either be non-switching, for example, gas-insulated transmission lines, or switching, for example, circuit breakers.
2. Risks & Warning signs – The risks and warnings involved in handling SF6 gas can be of three levels, namely high, medium and low.
3. Handling – Safe handling of the gas would involve ensuring that the cylinder isn’t dropped and it’s kept away from heat. It should never be stored in sunlit areas and the cylinder’s temperature should never exceed 50 degrees. The handling unit should be equipped with a filtering system, vacuum pump, compressor and a storage vessel and timely measurement of leakage, moisture content and pressure should be preformed.
4. Disposal – Although the impact of SF6 leaks in the environment isn’t high, leaks should be kept at a minimum. In case of leaks, it should be stored and transported to purification locations for proper handling.
5. Storage & transportation – During transportation, the gas should be constantly monitored for pressure and temperature. Cylinders should always be kept upright during transport and they should never be lifted from their protective caps.
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