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I have a 3OmA RCD which occasionally trips for no apparent reason. Can I simply change it for a 100mA unit?

April 26, 2017apparent RCD trips

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I have a 3OmA RCD which occasionally trips for no apparent reason. Can I simply change it for a 100mA unit?

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No. The 30mA RCD was installed to provide shock protection. This cannot be assured by a 100mA RCD because it may prevent let-go and heart fibrillation. The RCD may be of an older design which is prone to nuisance tripping. Try having it changed for a new one.