On 09/11/2012 10:46, wrote:
On Thursday, November 8, 2012 2:57:26 PM UTC, John Rumm wrote:
On 08/11/2012 13:53, Mike Tomlinson wrote:
In article ,
John Rumm writes

http://s833.beta.photobucket.com/use...erfeitFuse.mp4.


html

"We're sorry, we cannot find the page you requested."

http://www.bs1363.org.uk/counterfeit_fuse.mpeg

wow. Must have filled it with gunpowder rather than sand.
Na, just air... Shows you want a fault current (wiring regs
meaning) can do!


I'm not convinced. In decades past I've seen loads of fuses repaired
with bits of fusewire, or worse just a thin strand of copper wire.
The failure of such fuses was entirely tame, the downside was just
black deposits inside the plug, requiring a new plug. I've seen
plenty of glass fuses fail on mains too, and again nothing dramatic.

How could they create that clip? I suspect by bypassing the
protection of both incomer fuse and CU entirely, and picking an
unusually meaty (non)fuse, and passing the full 6kA through it,
perhaps at above mains voltage too. It sure looks like bs to me, but
not 1362.

Go search youtube for "arc flash" - even 240V supplies can be quite scary.




--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/