On 19/07/2019 20:53, Tricky Dicky wrote:
Looks like an SPD will be fitted purely on the principle that we have electronic equipment whose value easily outweighs the cost of even the most costly SPD I have come across so far

but you also have to factor in the risk of a power surge causing harm.
I've only lost 2 bits of kit in 30-odd years: a PVR and an ATX power supply.

and what cost do you put on a human life?


That's been a routine job in cost-benefit appraisal for decades. But
it's true that many would disagree with eg NICE's use of about £30,000
for a year of good quality life - especially when it's their life

--
Robin
reply-to address is (intended to be) valid