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Politechniki Gdańskiej

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Application of RCD and AFDD in low-voltage electrical installations for protection against fire

The paper presents the principles of application of residual current devices (RCDs) in protection against fire. The permissible rated residual operating current of RCDs is discussed. Limitations in the operation of RCDs in this type of protection are indicated. A new type of a protective device against fire – arc fault detection device (AFDD) – is described.

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