Electrical storms occasionally knock out the power supply. If this happens during the hours of sleep then an audible wake-up sound would enable emergency equipment to be set in motion ...
2006-12-06 01:10:35 · 5 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
Better, hook your back up system so it comes on when power fails. (relay, that will electrically start your generator from the battery.)
2006-12-06 01:16:00 · answer #1 · answered by T C 6 · 0⤊ 0⤋
Why not invent something like an electromagnetically held bucket of water above the bed when the power fails the bucket will tip and you will awaken. Reason being that you might be deep in the land of nod having been out on the pop the night before and that you might not hear an audible alarm or the batteries in it may have gone flat.
Dream on
2006-12-06 06:12:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
emergency lighting can have this circuitry so the battery light come on when the power fails.
Our smoke alarms change from a green LED to yellow if the mains goes off.
So, I'm sure these plugs must exist. Or if you can fiddle a bit i bet you could put a second (but quieter) piezo buzzer in a mains smoke alarm to go off when the mains goes.
good idea
2006-12-06 01:24:36 · answer #3 · answered by Michael H 7 · 0⤊ 0⤋
I have used these in my job to find fuses in unlabelled fuseboards.
They have a battery inside with a relay and buzzer.
You plug it in and remove the fuses one at a time until the buzzer sounds and you have found the right fuse.
Unfortunately i have to tell you that they are not intended for permanent energization as this would damage them.
They are just meant for occasional limited use.
They are available from electrical wholesalers.
2006-12-07 00:09:15 · answer #4 · answered by robert22061954 3 · 0⤊ 0⤋
Are you in the uk? I have one of these, it's called a 'Buzz Plug' I can't see any reference to it on the web , but it may be there somewhere?
2006-12-06 04:49:39 · answer #5 · answered by jayktee96 7 · 0⤊ 0⤋