On 07/05/2019 12:43, dennis@home wrote:
On 07/05/2019 07:52, Brian Gaff wrote:
I'd be a little perturbed that CUs were even made that easily caught
fire at
any time in history myself. Seems a little counter intuitive to me.
Â* Brian


They don't easily catch fire.
They catch fire more since the requirement to fit active bits like RCDs
as they are more likely to overheat than a plain fuse.

The cause of catching fire was entirely poor workmanship by electricians
- not doing up the terminal screws tightly enough (or at all in some
cases). It was well researched, because it started becoming a
significant problem in new installations. It wasn't failure or ageing of
any of the internal components.

--
Andrew