On 18/10/2012 22:02, Andrew Gabriel wrote:
In article ,
writes:
.....
Good practice for the future if the predicted power shortages occur,
most youngsters would enjoy the novelty.
A whole 3 hours ,you do sound a bit precious.

That's how long each of the rolling blackouts were in the 1970's
(miner's strike)....

I was working for an Electricity Board at the time. Three hours was
chosen because emergency lights should be capable of working for four
hours on batteries and they should have had enough time between cuts to
recharge.

Colin Bignell