Doorbells and Voltage drop

[Nigel62]

Hi All

First posting to the forum so I hope that I've posted in the correct place.

I'm looking to install a doorbell at my home in France. The distance between the bell push and the location of the bell/chime is about 40 m. I originally wanted a battery operated unit but I've been warned that, because of the distance involved, the voltage drop will be too high to operate the bell. I've also been told that this would apply to a transformer operated unit as well. Wireless units don't operate (past experience) due to the thickness of the house walls/configuration of line of sight.

Can anyone please advise me of a suitable solution, as when it comes to voltage drops I quickly need to reach for the nearest alcoholic beverage!!

Many thanks guys.

 

[Pete999]

Hi,
The loop resistance will be about 15 ohms, so you need something like Buy Solid State Relays Solid state relay, SPST-NO, 5 A, panel Schneider Electric 70S2-01-A-05-S online from RS for next day delivery. if you want the standard 6V battery ding dong. Ask the customer what kind of bell they would like and how many.

http://www.electriciansforums.co.uk...858-doorbells-voltage-drop-2.html#post1013611

 

[Pete999]

http://www.electriciansforums.co.uk...858-doorbells-voltage-drop-2.html#post1013611

Sorry wrong link I'll try later for the right one just had me Horlicks and night nurse feeling a bit worn out,

 

[vernam616]

Had this a few times in the past, we used to use a telephone wire or cat5 and double or triple the cores up

 

[Nigel62]

Had this a few times in the past, we used to use a telephone wire or cat5 and double or triple the cores up

Thanks for that. Was that using a battery operated bell? If so can you remember what the specs of the bell were?

 

[vernam616]

Sorry mate it was a while ago, more than likely friedland, it was from a wired transformer

 

[Nigel62]

Hi guys - just wanted to update you all in case it helps anyone in the future. I finally went down the route of buying a 9V battery-operated bell and a 50 m reel of 1.0 mm sq cable. Works like a treat on the bench so just off to do the installation.

Many, many thanks to everyone who responded.