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Long delay between pressing switch and light coming on


 
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keenbutconfused

from United Kingdom

Joined: 19 Jun 2005
Posts: 84
Location: London,
United Kingdom

PostPosted: Tue Oct 04, 2005 3:15 pm Reply with quote

There are two lights in our communal hallway. These are standard lightbulbs and are not halogens fed by a transformer.

One is fed from the electricity in my flat the other from the electricity supply in the other flat.

There is a two way switch next to each of the flat's doors. One button controls one light and the other button the other light.

There is a long delay between pressing the switch by my flat and the corresponding light coming on? By long I mean, 2 - 3 seconds. There is no delay when I turn it off.

Any ideas as to why this might be?
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slippyr4

from United Kingdom

Joined: 12 Jul 2005
Posts: 772
Location: Bedfordshire,
United Kingdom
Thanked: 4 times

PostPosted: Tue Oct 04, 2005 3:27 pm Reply with quote

you're sure it's not an energy saving lightbulb?

since electricity travels at a finite speed, the longer the cable run, the bigger the delay when turning on a light. perhaps your cable is about 600,000 miles long?
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andy

from United Kingdom

Joined: 14 Sep 2004
Posts: 3971
Location: United Kingdom
Thanked: 2 times

PostPosted: Tue Oct 04, 2005 3:58 pm Reply with quote

slippyr4 wrote:
you're sure it's not an energy saving lightbulb?

since electricity travels at a finite speed, the longer the cable run, the bigger the delay when turning on a light. perhaps your cable is about 600,000 miles long?

imagine the voltage drop on that...
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pdcelec

from United Kingdom

Joined: 05 Jun 2005
Posts: 707
Location: Birmingham,
United Kingdom

PostPosted: Tue Oct 04, 2005 4:03 pm Reply with quote

Is there a relay anywhere in the circuit?
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TexMex

from United Kingdom

Joined: 08 Jul 2004
Posts: 1525
Location: Essex,
United Kingdom
Thanked: 1 time

PostPosted: Tue Oct 04, 2005 4:52 pm Reply with quote

slippyr4 wrote:
perhaps your cable is about 600,000 miles long?
That's an absurd suggestion. The cost would be prohibitive, not to mention the impracticality of trying to route such an unweildy length of cable. The voltage drop over such a length would likely also prevent the luminaire actualy glowing at all. If you ony need a delay of 2 to 3 seconds, I've always found 450,000 miles to be quite satisfactory. icon_lol.gif
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securespark

from United Kingdom

Joined: 11 Jan 2004
Posts: 25246
Location: Cheshire,
United Kingdom
Thanked: 445 times

PostPosted: Tue Oct 04, 2005 9:55 pm Reply with quote

Have you noticed your booze stash diminishing mysteriously? Perhaps the electricity is stopping for one drink too many along the way, then it's a case of two steps forward, one step back. That's why it's delayed....
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keenbutconfused

from United Kingdom

Joined: 19 Jun 2005
Posts: 84
Location: London,
United Kingdom

PostPosted: Wed Oct 05, 2005 10:41 am Reply with quote

I am an idiot. The lightbulb is energy saving. Sorry for wasting your time. Having found some wierdness in the house electrics before I am a little jumpy about everything.
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