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Posted: 2021-08-0409:13 PM. Last Modified: 2021-08-0409:14 PM
RCD Nuisance Tripping
We have nuisance tripping of RCCB especially when we use 30ma sensitivity, due to the fact the moisture can affect the leakage current , how the effect of moisture is taken care in the standard?
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Posted: 2021-08-0812:04 AM
@Anonymous user - The nuisance tripping due to the absorption of moisture by case/cover of RCDs could be due to the grade of plastics used. The specific tests on plastics (resistance to humidity) and also the requirements of the pollution degree 2 are taken into consideration by IEC and relevant tests prescribed.