16 years ago
My parents are having trouble with a TV and freeview box that is
plugged into a particular wall socket (I am UK based), the problem is
that the freeview box keeps changing channels on its own and loosing
its configuration. This only ever happens around 6pm most nights. To me
it looks like there is a fault with the supply of electricity. I keep
asking them to call the electricity board and get them to check it out
but they are convinced that it is the freeview box that is at fault.
They have also had numerous problems with video machines plugged into
this socket as well in that they keep breaking down (they are using a 4
way adapter). My questions are:
1) Because it happens at roughly the same time at night could it be
that there is too much power being sent down the mains cable to cater
for the increase in demand (6pm means that many people will be cooking
their tea) and this manifests itself in strange behaviour on the part
of the freeview box?
2) Is there a device available that I can plug into the wall socket
with a display on it that will tell me how much power is being sent
through the mains socket and whether it is over or under the acceptable
limits of a UK mains socket?
3) What are the acceptable limits of a UK mains socket, I've heard that
it is 240v +/- 15%?