HP pavilion dv1000-compaq-presario-v2000-nx4800 Instruction De Maintenance

Page de 238
4–6
Maintenance and Service Guide
Removal and Replacement Preliminaries
4.7 Grounding Equipment and 
Methods
Grounding equipment 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. Wrist straps are flexible straps with a minimum of 
one megohm ±10% resistance in the ground cords. To provide 
proper ground, wear a strap snugly against the skin at all times. 
On grounded mats with banana-plug connectors, use alligator 
clips to connect a wrist strap.
When standing, use foot straps and a grounded floor mat. 
Foot straps (heel, toe, or 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 
foot straps on both feet with a minimum of one megohm 
resistance between the operator and ground. To be effective, 
the conductive strips must be worn in contact with the skin.
Other grounding equipment recommended for use in preventing 
electrostatic damage includes:
Antistatic tape
Antistatic smocks, aprons, and sleeve protectors
Conductive bins and other assembly or soldering aids
Nonconductive foam
Conductive tabletop workstations with ground cords of 
one megohm resistance
Static-dissipative tables or floor mats with hard ties to 
the ground
Field service kits
Static awareness labels
Material-handling packages
Nonconductive plastic bags, tubes, or boxes
Metal tote boxes
Electrostatic voltage levels and protective materials