12/09/2017
Hi Everyone,
Today’s topic is “Mobile phones usage (making a call) causes explosion when it comes close to Petrol fumes”
Most of us know that we do not use mobile phones when we are at the fuel station, but do we know why that is so?
The popular reason given is, the radiation emitted by the phone would cause a spark! Hmmmm let see!
Studies sponsored by the Institute of Petroleum now Energy Institute, (professional organization dedicated to those working in and studying the oil and gas industry based in London), showed that wireless phones operated at a power of 0.6 Watts which are too weak to cause fire.
So, what factors could have caused the fires? 1. STATIC ENERGY
Static electricity is an imbalance of electric charges within or on the surface of a material. A static electric charge can be created whenever two surfaces contact and separate, thereby transferring electrons. So, for example if you walk across a carpet, electrons move from the rug to you. Now you have extra electrons. Touch a door k**b and ZAP! The electrons move from you to the k**b. You get a shock. Guess you have had that experience!
Now to fires at the filling station with regards to phone calls-
“Mobile phone” accidents usually occurred when a person was fueling up and had returned to the interior of the car to make a call. When inside, their bodies rub against the seat, creating static electricity and charging the body.
“So they’re sitting in the car, they generate static, they pop out again, they haven’t dissipated their static, and they touch the pump nozzle. Now with ignition source (charged hands) present, and petrol vapours, you are sure to know what would be next, EXPLOSION!!!
Examples of activities showing presence of static energy in our everyday lives;
• Clothes stuck to one another after being in the dryer is another example of static electricity
• Or when your trousers keep sticking to your legs
• Rubbing a plastic comb through your hair and bringing it close to pieces of papers, one would notice, the pieces of papers getting stuck to the comb.
A short video attached would throw more light on this topic.
So it is advisable to be careful the type of clothes we wear near flammable vapours
In our next topics we would see the various clothes and other objects that increases the chances of building up static energy, (Triboelectric series) and what exactly is with mobile phones that can indeed cause a fire at the fuel station!!.
Until our next topic , do stay safe!!!