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Holec ® Vacuum technology and Solid insulation A sustainable alternative for SF6 gas-filled switchgear Powering Business Worldwide

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Environmentally-friendly energy technology Vacuum technology and Solid insulation In recent years, the environment has become a very important issue within society. Alarming reports on the greenhouse effect and climate change means that everyone is aware of the serious threat to life on earth. It is time for everyone to take responsibility for these developments. Emissions of SF6 gas from switchgear contribute significantly to the threat of the greenhouse effect and associated climate change. Production of SF6 is still increasing worldwide, despite the fact that this greenhouse gas is...

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Features of vacuum technology • Safe • Compact • Reliable > 30,000 mechanical switching operations > 100 switching operations of the short-circuit current (Ik) • Maintenance free Cross-section of a vacuum interrupter Annual worldwide emission of SF6 gas SF6 is a synthetic compound consisting of one sulphur atom and six fluorine atoms and does not normally occur in nature. SF6 is gaseous at room temperature and is heavier than air. Due to the strong bonds between the sulphur and fluorine atoms SF6 is inert under normal circumstances. This gas has certain electrical properties that make it...

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European F-gas regulation As a consequence of the outcome of the IPCC studies and the fact that SF6 is a greenhouse gas listed under the Kyoto-protocol of which emissions should be mitigated [1], the European Union passed legislation that bans SF6 for almost all applications, except for electrical switchgear. The reasoning for this exception is that no viable alternative would be available. Under the F-gas regulation (2006) the use of SF6 is now prohibited for most applications, like in sport shoes, car tyres, tennis balls and for double glazing [6]. The F-gas regulation prescribes a lot of...

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