On 06/14/2018 05:46 PM, Avogadro wrote:
On 6/14/2018 3:09 PM, wrote:
My electrician said you can change it without turning it off first.
Such low voltage.

Yes, 24 volts is less likely to electrocute you than 120 volts

and if you're just replacing the button the only thing a short can do is
ring the bell.

and the secondary winding of the transformer is isolated with respect to
ground

and has a non-replacable fuse in it, so shorting it may mean you need a
new transformer.

but would it really take that much effort to just shut the breaker off
while you replace the doorbell components?

Especially if you've previously identified the breakers, so you know
which to shut off.

--
Mark Lloyd
http://notstupid.us/

"The destroyer of weeds, thistles and thorns is a benefactor whether he
soweth grain or not." --Robert G. Ingersoll