Short circuit but no bang or flash

[bernardgreen]

If the short circuit is made when the AC voltage is at the zero crossing point then at that instant of time there is no current flow. Then as the voltage increases the current through the now established short circuit will increase until at some point it is enough to trip the magnetic trip in the MCB. Provided the cutters that created the short circuit can withstand the high fault current for a few milliseconds ( until the MCB opens ) then little if any metal will be vaporised and hence no "explosion".

But far too many variables to say what will happen in reality.

 

[Harry Bloomfield]

If the short circuit is made when the AC voltage is at the zero crossing point then at that instant of time there is no current flow.

Which is how zero crossing electronic switching works. The electronics detect when the voltage crosses the zero point, to switch on - thus avoiding the pulses and switching surge.

 

[securespark]

@jelliottelectrical

Loving the badger!

 

[jelliottelectrical]

@jelliottelectrical

Loving the badger!

His name is Buster, and he gets up to some mischief!

(No one make any reference to the tv show bodger and badger)