On 17/03/2019 14:18, Dave Plowman (News) wrote:
Old car needed the battery charged.

Plugged that in via an extension lead from an outside socket - which has
an historical RCD just inside the house - from before when I fitted a
modern split load CU with RCD.

Charger was working and showing a charge, so left it to get on.

About an hour later, the house RDC tripped.

Unplugging the charger got things back to normal.

5 amp fuse in the charger plug had blown. Charger is an all plastic type
with a two core mains lead.

What sort of fault inside the charger could have caused the RCD to trip?


Some illegal event on the bus bar?
;