Preventing Electrostatic Damage To Equipment; Personal Grounding Methods - Compaq Deskpro 2000 Maintenance & Service Manual

4.1.2

Preventing Electrostatic Damage to Equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the
degree of sensitivity. The following proper packaging and grounding precautions are necessary to
prevent damage to electric components and accessories.
„
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
„
Protect all electrostatic sensitive parts and assemblies with conductive or approved containers or
packaging.
„
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
„
Place items on a grounded surface before removing them from their container.
„
Always be properly grounded when touching a sensitive component or assembly.
„
Avoid contact with pins, leads, or circuitry.
„
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive
foam.
4.1.3

Personal Grounding Methods

The method for grounding must include either a wrist strap or a foot strap at a grounded workstation.
When seated, wear a wrist strap connected to a grounded system. When standing, use foot straps and
a grounded floor mat.
Method
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
4-2 Removal and Replacement Preliminaries
Table 4-2
Static Shielding Protection Levels
Voltage
1,500
7,500
15,000