Static Electricity and Computers
Static electricity is caused by a process called triboelectrification. Everything around us, and including us, is made of atoms, and every atom has in its center (nucleus) positively charged protons and neutrons, which have no electrical charge. Surrounding the atom are negatively charged electrons. The protons and neutrons in an atom do not change, but the electrons can move from one atom to another. When two objects touch, they exchange electrons, which causes one object to become electrically positive and the other to become electrically negative. When an object touches another object with either an opposite or neutral charge, electrons flow. Static electricity is created when electrons move back and forth between atoms.
To avoid zapping your components with static electricity, take precautions to ground the static electricity before touching any of the internal components of the computer. Wearing an ESD or Anti-Static wristband (2) or working on an anti-static mat will prevent any static electricity from damaging your computer. Another way to ground the static electricity is to touch the internal metal frame of the computer's case while the computer is plugged into an electrical socket. The static electricity will be discharged and grounded as the electrical circuit is grounded via the AC outlet. And to be on the safe side, always handle the electronic circuitry on the motherboard, video card, modem, sound card, memory, hard drive and other internal components by any insulated, non-circuitry areas if they have them to insure that you do not send a bolt of static electricity coursing through it.
An important exception to this rule is when working inside monitors. You should not ground yourself before working inside a monitor. Monitors store electricity in capacitors, and by grounding yourself you will provide a conduit for the voltage to discharge through your body. Note Well: A computer monitor stores enough electricity in its capacitors to be lethal if released, often tens of thousands of volts. Even with the power off and/or the monitor disconnected from a power source, the monitor retains an extremely high electrical charge. Only a trained professional using the proper equipment should ever attempt to work inside of a computer monitor.
(1) (ESD) Short for electrostatic discharge, the rapid discharge of static electricity from one conductor to another of a different potential. An electrostatic discharge can damage integrated found in computer and communications equipment.
(2)A safety device used to channel static electricity to a proper ground while handling sensitive computer equipment. (ESD) damage occurs when a release of stored static electricity travels from something such as a person's body into a conductor of a different potential, such as a computer being repaired. The ESD wrist strap safely channels the static electricity to a proper ground, typically the computer's chassis. These can be found in my eBay Store Random Anythings
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