go to the Air-insulated switchgear product page Anonymous asked on Jan 6th, 2015 in Air-insulated switchgear

Are the EDF breakers suitable for low temperature operation down to -50 deg C ?

Christian Cingolani, Global Product Marketing Manager LTB

ABB's answer

Yes. EDF breakers are suitable for low temperature operation down to -50 deg C. For low temperature applications below -30 deg. C mixed gas ( SF6 + N2 or SF6 + CF4 ) is used. With the use of this gas mixture, the relevant ratings and guaranteed values of short circuit ratings should be reconfirmed with the manufacturing unit

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    Helene Hedlund

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    High Voltage Products

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