On 24/12/2016 10:31, dennis@home wrote:
On 24/12/2016 00:28, Dave Plowman (News) wrote:

But most people leave their phone charger plugged in and switched on when
not in use - so not really any different. Except that a decent quality
one
built into a steel back box isn't going to be anything like the same
hazard if it should explode or whatever.


I wouldn't like to count on that if its a timber framed building.
The external one would at least have a fire proof layer between it and
the frame even if its only plaster board.
It would also set off the smoke alarm well before the fire took hold.


Timber framed buildings should use intumescent steel back boxes.

--
Adam