Thread: Replace doorbell
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Avogadro Avogadro is offline
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Default Replace doorbell
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 the secondary winding of the transformer is isolated with respect to ground

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

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