On Fri, 13 Jan 2006 10:29:17 -0000 someone who may be "Christian
McArdle" wrote this:-

Battery smoke detectors help, but are
significantly less reliable, as less than half have a functional installed
battery at any time.

That is a matter of how seriously one takes such things. Those who
take such things seriously make sure the batteries are functional.

Mains powered smoke alarms on their own circuit can have their fuse
withdrawn, or circuit breaker turned off, should one be so inclined.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54