Do I need a mains fire alarm

CBW

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My searches returned confusing results. What are you basing your view on? I can see a battery powered alarm being DIY'able.
Ok, the ask yourself, and answer this: “what makes you think it’s not diy”?
 
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Ok, the ask yourself, and answer this: “what makes you think it’s not diy”?

I can't ask myself because I don't know. Hence I asked and searched. Some search results say it requires competency and competency is what an electrician has because he has the certificate that says so - or something to that effect.

I am not arguing with you despite it appears that way. I am genuinely interested in people's views and answers. My gut tells me somethings are best not asked.
 
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Ask yourself if you are competent to turn off the power, check that the power supply to the old alarm is dead, remove the wires from the old alarm, put them in the correct place in the new alarm and test that the new alarm actually works when it is powered on.

For some people, with the right knowledge and test equipment, this is easy DIY. Other people wouldn't have the confidence to touch it or don't have the necessary equipment to do it safely and prove that it works when done.
 
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If competency can be self-certified, then yes I am competent. But, it seems like a grey area.

I have a better idea: I just ask people. If their posts don't get deleted, then I am competent. Thanks for the help.
 
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I have installed the fireangel and the result is satisfactory. I will use the same in other properties,

In a house that has an interlink cable in the ceiling, is there any point in connecting the alarm to that if the alarm is the only interlink capable alarm out of a total 3 in the house? The other two would be 10 year battery alarms with no interlink.
 
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I would have thought that the Insurance Company that is insuring the property for fire , should have been consulted before a Mains Type alarm is removed or renewed, they have the power to refuse any insurance cover .
 
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Not convinced you have demonstrated competency.

Knowing what’s involved, who’s involved, suitable product selection, safely disabling old system, installation of new product. Testing of products old and new to prove safely disabled and correctly functioning replacement.

If tested in a court of law after an incident would you be confident that your work would be found without fault that is within your control.
 
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if its a mains alarm fitted, then you would have to replace it with a mains device... and an electrician would be advisable... insurance companies get very picky about paying out to properties with non-certified electrics.. is it a rented property?
building regs require mains fitted smoke devices in new builds and renovations for at least 10 years now.
 
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The regulations only need 1 mains powered alarm. So, if there were 3 mains powered alarms in a freehold house, I can get away with 2 battery powered ones as replacements, right?
 

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