Author Topic: Brymen BM235 10A fuse silently destroyed by a switched off UPS leakage current..  (Read 6948 times)

0 Members and 1 Guest are viewing this topic.

Offline rsjsouza

  • Super Contributor
  • ***
  • Posts: 6106
  • Country: us
  • Eternally curious
    • Vbe - vídeo blog eletrônico
-  "Regarding arc flash on regular outlets, I have had my share of very impressive events on both the typical 15A circuit and some higher ones (40, 80A)."

Do you mind sharing the details?   :)
I have shared it in one or two threads around here, but the short version is that, in at least two occasions, if I weren't using glasses I would have vapourized electrolyte and a blend of silicon/epoxy etched to the bottom of my eyes.
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline hggTopic starter

  • Frequent Contributor
  • **
  • Posts: 960
  • Country: gr
johnkenyon   Thank you for the idea.   :-+

The UPS already had a covered hole with the exact diameter of a mains neon indicator...  :)
This is how it was meant to be made...



 

Offline malagas_on_fire

  • Frequent Contributor
  • **
  • Posts: 591
  • Country: pt
  • Kernel Panic
    • Malagas Lair
Nice, and the meter? Get a decent fuse  10x38mm 11A fuse ( Siba, Bussman) for the meter and consider next time using an small  extension cord with splitted cables ( earth, neutral and live) to connect a small load ( a 5V usb power cord)  and only connect in series the matched color / type r of cable when using current, also consider using a clamp / current AC transducer eg:


https://ebay.us/zEtvaF

or even a clamp meter such the uni-t 210E.
If one can make knowledge flow than it will go from negative to positve , for real
 

Offline hggTopic starter

  • Frequent Contributor
  • **
  • Posts: 960
  • Country: gr
The meter is waiting for the new fuse.
I already have both the UT210E and a splitted earth extension cord...
 

Offline malagas_on_fire

  • Frequent Contributor
  • **
  • Posts: 591
  • Country: pt
  • Kernel Panic
    • Malagas Lair
Good another thing to explore with the extension cable is leaks between earth-neutral or earth-live, putting these pairs in the clamps, without any load attached.

i follow previous post a recomendation for fuses, based on the  jpscalibrationservices  seller .
If one can make knowledge flow than it will go from negative to positve , for real
 

Offline hggTopic starter

  • Frequent Contributor
  • **
  • Posts: 960
  • Country: gr
He lists shipping for Greece from 11 pounds to 14 pounds which is crazy expensive for little a fuse!
Obviously he makes money from shipping as well...
 

Offline malagas_on_fire

  • Frequent Contributor
  • **
  • Posts: 591
  • Country: pt
  • Kernel Panic
    • Malagas Lair
If one can make knowledge flow than it will go from negative to positve , for real
 

Offline hggTopic starter

  • Frequent Contributor
  • **
  • Posts: 960
  • Country: gr
TME, thats where I bought the Bussmann fuse.   (I am also waiting for 2 ebay fakes..)
20 euros!  double the price of the SIBA fuse.

Am not sure though how the double price is justified...
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf