By redirecting the static these wristband devices assist in properly grounding your body balancing out any electrical charge differences between you and electrical parts.
Do i need a anti static building mat and wristband.
The grounding cable is what connects the anti static mat being used as a work surface to the electrical outlet.
This is an elastic band made of conductive fiber such as carbon or carbon filled rubber that are bounded on the hand with a stainless steel plate or clasp.
Make sure you have one hand or your forearm touching some metal part of the case while working.
Just take the other necessary precautions.
I am very careful though and a perfectionist so i handle each piece.
However having the mat and the wrist strap grounded at the same point does keep them in electrical balance.
You do not need an anti static mat or wrist strap.
I am a field tech and have never carried around a mat or strap.
Unless 30 40 is really gonna cause some problems you might as well own one.
It is best to have it plugged up and unplug the power connector off the motherboard.
They are normally used along with an antistatic mat that are placed on the working bench.
The difference between using grounding cables separate for a mat or wrist strap as opposed to a common point ground is primarily ergonomic.
You can buy mat spray and take care of it and use the same one for pretty much the rest of your life.
There s pretty much no reason not to own one.
I wear one on my ankle.
I alwyas build mine on the carpet floor while sitting down and i never use an anti static wristband even though i know i should.