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Chapperz

Chapperz

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Stupid question probably but... If someone was to bell out a circuit to find a fault, should they disconnect from the board and why? Also, if a light on a two way and intermediate stays o. Perminately would that be due to the strappers being mixed up?

Thanks people

Regards
 
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To bell out, is the old way of testing for continuity, and it was a simple doorbell circuit.

nowadays, a multi function tester can send anything up to 1000v down the wire, so not only does the circuit need disconnected from mains, but any electronics or other devices need disconnected from the circuit. Ie, smoke alarms, led lights, anything that can be unplugged!

the question of two way lighting… it is unclear if you mean always off, or always on… maybe edit the post?

if always on, then the supply feed is connected to the switchwire and the switches aren’t doing anything.
mixing up the strappers would cause the light to work on one switch but not the other. Ie a strapper is connected to either the feed or the switchwire.
 
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littlespark said:
To bell out, is the old way of testing for continuity, and it was a simple doorbell circuit.

nowadays, a multi function tester can send anything up to 1000v down the wire, so not only does the circuit need disconnected from mains, but any electronics or other devices need disconnected from the circuit. Ie, smoke alarms, led lights, anything that can be unplugged!

the question of two way lighting… it is unclear if you mean always off, or always on… maybe edit the post?

if always on, then the supply feed is connected to the switchwire and the switches aren’t doing anything.
mixing up the strappers would cause the light to work on one switch but not the other. Ie a strapper is connected to either the feed or the switchwire.
Click to expand...
Thanks for the reply
Got it sorted... Testing between neutral and live with a lamp in.
 
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Still widely used in India!

I showed the guy my modern version he turned his nose up at it
 

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telectrix said:
advances in technology.cvwe now have these wonderful machines. batteries not required, and the magic needle eliminates the need for buzzer:

View attachment 88887
Click to expand...
Didn't we all start off with one of these??

Still have mine!

Nothing wrong with the term belling out, for simple end to end identification of cores/connections I frequently use the fluke multimeter on diode setting - it buzzes when connectivity is made.
 
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I have a Martindale voltage tester that also bleeps on continuity.

Good point is it also warns you of a live circuit without blowing up (different bleep)

Bad point is you jump with proving dead as it bleeps until you remember it is the 'safe' bleep sound...
 
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pc1966 said:
I have a Martindale voltage tester that also bleeps on continuity.

Good point is it also warns you of a live circuit without blowing up (different bleep)

Bad point is you jump with proving dead as it bleeps until you remember it is the 'safe' bleep sound...
Click to expand...
My megger one does the same, and yes I jump in panic exactly the same!
 
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