Our block of Units replaced the original meter board in 2016. It was full of the these ceramic fuses including 3 phase for each Unit.
Mike Harding said
02:47 PM Aug 30, 2021
There is merit in such protection. Although it's a bit rough and ready in rupturing accuracy compared to a modern circuit breaker it has no moving parts and it *will* work, eventually :) Where it falls down, a bit, is in long term minor overloads but these are quite rare events.
Were I to wire my own house again I rather think I'd put a wire fuse in series with each of the MCBs - belt and braces.
peter67 said
05:58 PM Aug 30, 2021
Craig1 wrote:
Hi Craig, when the wire fuses snapped a lot of people used to roll up an old tin foil milk bottle top, I never did that but.
Craig1 said
07:54 PM Aug 30, 2021
3" nail was the best Pete, bit hard to easily bend though
Corndoggy said
08:15 PM Aug 30, 2021
I still have them in my house. Not worried about changing them.
Our block of Units replaced the original meter board in 2016. It was full of the these ceramic fuses including 3 phase for each Unit.
There is merit in such protection. Although it's a bit rough and ready in rupturing accuracy compared to a modern circuit breaker it has no moving parts and it *will* work, eventually :) Where it falls down, a bit, is in long term minor overloads but these are quite rare events.
Were I to wire my own house again I rather think I'd put a wire fuse in series with each of the MCBs - belt and braces.
Hi Craig, when the wire fuses snapped a lot of people used to roll up an old tin foil milk bottle top, I never did that but.
3" nail was the best Pete, bit hard to easily bend though