Jimmy_Green
LE
I'm also interested when the red light flashes but not when it doesn't. I spend all my time being interested - not interested - interested - not interested...
It's all quite exhausting really.
Electrical Box Under the stairs - what is it and what’s the flashing light?
- Thread starter BuggerAll
- Start date
LE
It's all quite exhausting really.
Jimmy_Green
LE
They're only interested if it's a pink or rainbow coloured flashing light.
@MrBane Walt
dogmeat
LE
CrabfatBILL
LE
A signaller
LE
Only in India, according to a comment made by Phil the Greek....allegedly!
anglo
LE
Simple really,
For the meter in the photographs above, the label states 1000 Imp/kWh, so the LED will flash 1000 times per unit of electricity. We can use that value of 1000 to estimate the power. If a constant 1000W (1kW) is going through the meter, then in one hour (3600 seconds) the LED will flash 1000 times, so the LED will flash once every 3600/1000 = 3.6 seconds. With a constant 3000W (3kW) going through the meter, in one hour 3 kWh will pass through the meter (3 x 1000 = 3000 flashes in 3600 seconds) so the LED will flash every 3600 / 3000 = 1.2 seconds.
It is more likely that you will want to measure the rate of flashing, and from that calculate the power going through the meter. This can easily be achieved by reversing the calculation above as follows:
Power (kW) = 3600 (secs in 1hr) divided by (the seconds between flashes * number of Imp/kWh printed on meter)
For example, if the LED flashes once every 5.2 seconds on a meter labelled 800 kWh, the power going through the meter at that time will be 3600 / (5.2 * 800) = 0.865 kW.
See simple
For the meter in the photographs above, the label states 1000 Imp/kWh, so the LED will flash 1000 times per unit of electricity. We can use that value of 1000 to estimate the power. If a constant 1000W (1kW) is going through the meter, then in one hour (3600 seconds) the LED will flash 1000 times, so the LED will flash once every 3600/1000 = 3.6 seconds. With a constant 3000W (3kW) going through the meter, in one hour 3 kWh will pass through the meter (3 x 1000 = 3000 flashes in 3600 seconds) so the LED will flash every 3600 / 3000 = 1.2 seconds.
It is more likely that you will want to measure the rate of flashing, and from that calculate the power going through the meter. This can easily be achieved by reversing the calculation above as follows:
Power (kW) = 3600 (secs in 1hr) divided by (the seconds between flashes * number of Imp/kWh printed on meter)
For example, if the LED flashes once every 5.2 seconds on a meter labelled 800 kWh, the power going through the meter at that time will be 3600 / (5.2 * 800) = 0.865 kW.
See simple
A signaller
LE
What was once a frightening story of the future, ( 1984) has now emerged as fact. Eric Blair would be amazed at how accurate his prediction of the future has become. The surveillance camera on his old home, the irony is magnificent.
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Fake Sheikh
War Hero
Google Box name & part no, why ask arrse or contact your electricity supplier & ask.
But really its to tell the company you are bypassing the grid.
But really its to tell the company you are bypassing the grid.
AdminVortex
LE
Balloons blow up
its just a red flashing light installed to irritate people
Yokel
LE
In pre automation days, some homes and offices had a red headed woman to flash at people. It's progress Jim, but not as we know it.
Does the flashing continue in a power cut?
Does the light stay on if you flash at it?
If you shut it away so you cannot see it, does it still flash?
its like that blokes cat
schrodingers electricity meter
Or the one you ask after 3 ltrs of White Lightning!
While we are on this subject, perhaps I could ask a similar question, whilst driving my car the other day, I went to turn a corner and I put the indicators on, as I was turning the corner I notice a green light on the dashboard came on, but then it went off, then it came on, then it went off, then it came on again, then it went off, as I finished turning the corner it went off for ages, then as I turned another corner it came on again, it then went off less then a second later, but then came on again, less than a second later, on, off, on, off it went, it continued to do this all the way home. What is the green light for and should I be worried? I even went down to the garage and checked if the light came on, an hour I sat there looking at it, nothing, I even checked under the car to see if it could be seen through the hole in my floor, I drilled that to see if I could see the light from underneath, nahda
