● You can use heel straps, toe straps, and boot straps at standing workstations. These
straps are compatible with most types of shoes or boots. On conductive oors
or dissipative oor mats, use them on both feet with a maximum of 1 MΩ ±10%
resistance between the operator and ground.
Table 4-2 Static shielding protection levels
Static shielding protection levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
Grounding the work area
To prevent static damage at the work area, follow these precautions:
● Cover the work surface with approved static-dissipative material.
● Use a wrist strap connected to a properly grounded work surface and use properly
grounded tools and equipment.
●
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB
laminate. Handle them only at static-free work areas.
●
Turn o power and input signals before inserting and removing connectors or test
equipment.
●
Use xtures made of static-safe materials when xtures must directly contact
dissipative surfaces.
●
Keep the work area free of nonconductive materials, such as ordinary plastic
assembly aids and polystyrene foam.
●
Use conductive eld service tools, such as cutters, screwdrivers, and vacuums.
●
Avoid contact with pins, leads, or circuitry.
Recommended materials and equipment
HP recommends certain materials and equipment to prevent static electricity:
●
Antistatic tape
Recommended materials and equipment 33
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