What Cause Fire in the Petrol Station?

Well, just a post to share about what I've learned. =)
My work related to EMC - Electro Magnetic Compatibility.
And ESD - Electro Static Discharge is one of the subset.
Probably up till here, you still dunno what I'm saying.
That's why I will show you a real life example.

What Cause Fire in Petrol Station?

Let's me show you a series of photos.

Guess what happen next?

Here's the video version:


So again with the question...

What causes the fire?

Well, it is the ESD - Electro Static Discharge.
Apparently, she collects all the charges when she went in and out of the car.
Without touching anything (metal) to discharge the charges in her body,
She directly touches the pump.
So, with the low temperature and humidity..

A charge/spark zaps to the metal near the pump!

The spark will then ignites the fire thru the fume from the petrol.
Which explains the fire. =)

So, you actually don't need a cigarettes or a phone...
All you need is just a....

SPARK!

In fact, that's what happens when a phone rings too.
It's not because of the signal transmission but rather the spark.

So, did you get to learn something here? ;)