According to results from testing performed by the NASA Interagency Working Group on Electrostatic Discharge (IAWG-ESD), it was confirmed thatwireless wrist straps failed to prevent charge build up or to drain accumulated charge in order to prevent potential discharges.
What is the purpose of the ESD wrist strap?
The goal of using ESD wrist straps isto safely provide a way for static electricity to dissipate without causing electrostatic damage. The less ESD events that occur the better. An ESD protected work environment will enhance safety which helps to increase efficiency and production.
When should I wear my ESD wrist strap?
Wear your ESD strapwhenever you're around ESD-sensitive items. Any time you are holding or working with computer components, such as motherboards or video cards, that are not installed in the computer case, keep yourself grounded. Otherwise, electrostatic discharge could damage those components.