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Have just had a very frustrating couple of days trying to locate an intermittent Earth Fault somewhere in our electrical installation here at home....
What was making it a difficult exercise, was that the fault would trip the central RCD Protection in an apparently random manner, sometimes taking hours before the protection would trip.
All the major appliances and white goods were quickly eliminated and so that just left a myriad of small devices to check through the weekend. Eventually found the cause, as a Power Lead that plugged into my Wife's Laptop Charger. The IR between Active and Earth was getting down to ~10KOhm which when combined with other residual leakage, was able to trip the RCD.
Turns out that Toshiba had issued a Recall on this Power Lead in 2014 but we knew nothing about it unfortunately. Anyhow, for anyone else who may have one of these lousy Leads tucked away somewhere, here's a link to the original Recall Advice issued by Toshiba...
All the best,
Mal.
What was making it a difficult exercise, was that the fault would trip the central RCD Protection in an apparently random manner, sometimes taking hours before the protection would trip.
All the major appliances and white goods were quickly eliminated and so that just left a myriad of small devices to check through the weekend. Eventually found the cause, as a Power Lead that plugged into my Wife's Laptop Charger. The IR between Active and Earth was getting down to ~10KOhm which when combined with other residual leakage, was able to trip the RCD.
Turns out that Toshiba had issued a Recall on this Power Lead in 2014 but we knew nothing about it unfortunately. Anyhow, for anyone else who may have one of these lousy Leads tucked away somewhere, here's a link to the original Recall Advice issued by Toshiba...
All the best,
Mal.
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