Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
There might be hostile atmosphere with heavy lightening etc during this time, over there ?It just happend to me. (light bulb vs circuit breaker) Re: arcs at 120 VAC; yes, the blue great flash seen when the filament opens, or is open and power is applied is an arc. If you could measure the lumens at that exact point you could determin the current and calculate the resistance. I still can understand after looking at trip current curves of 15 amp breakers how it can trip.
When the wrench glows red-hot then there is no arc.throw a wrench across your car battery and tell me if it will arc or not
When the wrench glows red-hot then there is no arc.
It takes a high voltage and a gap to make an arc.
I feel it is cold filament effect and lack of zero crossing switching of Power supplyHalogen bulbs certainly don't have a safety fuse - they're always tripping the breakers.
Also, I doubt the wrench itself actually melts, it's more likely that the battery terminals, which are made of lead, will melt.
One reference says the welding arc voltage is 17 to 45V. And I believe the voltage across a carbon arc lamp is about 35V.I'm not totally sure but I think my stick welder is putting out under 100V when I strike an arc with is (but lots of amps).
One reference says the welding arc voltage is 17 to 45V. And I believe the voltage across a carbon arc lamp is about 35V.
Do you have any idea of a car battery current output during a short across it
For example: a group 27 standard GM pick-up batteries short circuit current is around 4000 Amps for 1 second.
Locked rotor current though the starter motor for my '94 Honda Civic is 400 A [@ 4 v across the motor] so the internal resistance of this battery = (12-4)/400 = 20 mΩ, so Isc = 12/.02 = 600 A.
This should melt #6 copper wire.
What is the fusing current for a wrench?