480 volt 3-phase Arc Flash Demonstration

Here arcs were intentionally initiated by bridging wires across three copper bus bars in a testing laboratory. Three phase 480 volt power was then applied across the bus bars for about 1 second. The wires immediately explode, forming a conductive plasma which forms high current power arcs between phases. The actual fault current in the demonstration is not known, but is likely in the range of tens of kiloamps.

Category:

Howto & Style

Tags:

• Arc
• Flash
• Demo
• Volts
• Amps
• Explosion

[punder30]

Damn I was searching for cooking a turkey in a microwave..how did i get this?

[randomvideowatcher]

Tim Allen modified that microwave.

[netfig211]

brownies are done

[dougspair]

behind the smoke, is the blast of 10,000+ degree molten copper.

[kipkay211]

Man grabs wire, ARC FLASH, ding, dinner's ready. XD

[Paxmax]

@punder30 you threads the wire through turkey, hit the switch and by the time you can say DING! it is DONE!

[teslapower220]

Lol.... the bell...

[seansy59]

Cool! I'll buy it.........

[jake3085]

How many amps is that?

[kymbolino]

@Nivicoman Arc flash has more to do with short circuit fault current, and can occur at voltages as low as 1V. The high voltage of an arc flash comes from the energy stored in the line as inductance, not it's nominal line voltage. It's directly proportional to the rate of change of current flow. The faster you break the current, the greater the voltage.

Typically 240V circuits is generally so far downstream in a network that it's fault current is small. But not always!

[markhodgson600]

ding dinners ready lol

[iichhaald]

fuse says good bye xD