wrist strap connected to a grounded system. When standing, use footstraps and a grounded floor mat.
Static-Shielding Protection Levels
Method
Antistatic Plastic Carbon-Loaded Plastic Metallized Laminate
Voltages
1,500 7,500 15,000
Grounding Workstations
To prevent static damage at the workstation, use the following precautions:
Cover the workstation with an approved static-dissipative material. Provide a wrist strap connected to the work
surface and use properly grounded tools and equipment.
1.
Use static-dissipative mats, heel straps, or air ionizers to give added protection.2.
Handle electrostatic-sensitive components, parts, and assemblies by the case or PCB laminate. Handle them only
at static-free workstations.
3.
Avoid contact with pins, leads, or circuitry.4.
Turn off power and input signals before inserting and removing connectors or using test equipment.5.
Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.6.
Keep the work area free of nonconductive materials such as ordinary plastic assembly aides and Styrofoam.7.
Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.8.
Use a portable field service kit with a static dissipative vinyl pouch that folds out of a work mat. Also use a wrist
strap and a ground cord for the work surface. Ground the cord to the chassis of the equipment undergoing test or
repair.
9.
Ground Equipment
Use the following equipment to prevent static electricity damage to the equipment:
Wrist Straps are flexible straps with a minimum of 1 megohm plus or minus 10% resistance to the ground cords. To
provide proper ground, a strap must be worn snug against the skin. On grounded mats without banana-plug connectors,
connect a wrist strap with alligator clips.
Heelstraps/Toestraps/Bootstraps can be used at standing workstations and are compatible with most types of boots and
shoes. On conductive floors or dissipative floor mats, use them on both feet with a minimum of 1 megohm resistance
between operator and ground. To be effective, the conductive strips must be worn in contact with the skin.
Recommended Materials and Equipment
Other materials and equipment that are recommended for use in preventing static electricity include:
Antistatic tape
1.
Antistatic smocks, aprons, or sleeve protectors2.
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