Grounding The Work Area; Recommended Materials And Equipment - HP Dx5150 - Compaq Business Desktop Reference Manual

Identifying the Chassis, Routine Care, and Disassembly Preparation
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Heel straps/Toe straps/Boot straps can be used at standing workstations and are
compatible with most types of shoes or boots. On conductive floors or dissipative floor mats,
use them on both feet with a maximum of one-megohm ± 10% resistance between the
operator and ground.
Static Shielding Protection Levels
Method
Antistatic plastic
Carbon-loaded plastic
Metallized laminate

5.2.4 Grounding the Work Area

To prevent static damage at the work area, use the following precautions:
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Cover the work surface with approved static-dissipative material. Provide a wrist strap
connected to the work surface and properly grounded tools and equipment.
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Use static-dissipative mats, foot straps, or air ionizers to give added protection.
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Handle electrostatic sensitive components, parts, and assemblies by the case or PCB
laminate. Handle them only at static-free work areas.
■
Turn off power and input signals before inserting and removing connectors or test
equipment.
■
Use fixtures made of static-safe materials when fixtures must directly contact dissipative
surfaces.
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Keep work area free of nonconductive materials such as ordinary plastic assembly aids and
Styrofoam.
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Use conductive field service tools, such as cutters, screwdrivers, and vacuums.

5.2.5 Recommended Materials and Equipment

Materials and equipment recommended for use in preventing static electricity include:
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Antistatic tape
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Antistatic smocks, aprons, or sleeve protectors
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Conductive bins and other assembly or soldering aids
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Conductive foam
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Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
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Static-dissipative table or floor mats with hard tie to ground
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Field service kits
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Static awareness labels
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Wrist straps and footwear straps providing one-megohm +/- 10% resistance
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Material handling packages
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Conductive plastic bags
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Conductive plastic tubes
5–4
Voltage
1,500
7,500
15,000
361685-001 Service Reference Guide, dx5150