EPA Static Discharge ESD workbench rubber mat Grouding wire
An antistatic wrist strap, ESD wrist strap, or ground bracelet is
an antistatic device used to safely ground a person working on very
sensitive electronic equipment, to prevent the buildup of static
electricity on their body, which can result in electrostatic
discharge. It is used in the electronics industry by workers
working on electronic devices which can be damaged by ESD, and also
sometimes by people working around explosives, to prevent electric
sparks which could set off an explosion. It consists of an elastic
band of fabric with fine conductive fibers woven into it, attached
to a wire with a clip on the end to connect it to a ground
conductor. The fibers are usually made of carbon or carbon-filled
rubber, and the strap is bound with a stainless steel clasp or
plate. They are usually used in conjunction with an antistatic mat
on the workbench, or a special static-dissipating plastic laminate
on the workbench surface. The wrist strap is usually worn on the
nondominant hand. It is connected to ground through a coiled
retractable cable and 1 megohm resistor, which allows high-voltage
charges to leak through but prevents a shock hazard when working
with low-voltage parts.