HP EliteBook 650 Maintenance and Service Guide - Page 43
Grounding the work area, Recommended materials and equipment, Antistatic smocks, aprons
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Table 4-2 Static shielding protection levels (continued) Static shielding protection levels Carbon-loaded plastic Metallized laminate 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 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. ● Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and polystyrene foam. ● Use conductive field 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 ● Antistatic smocks, aprons, or sleeve protectors ● Conductive bins and other assembly or soldering aids ● Conductive foam ● Conductive tabletop workstations with ground cord of 1 MΩ ±10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service kits ● Static awareness labels ● Wrist straps and footwear straps providing 1 MΩ ±10% resistance ● Material handling packages ● Conductive plastic bags Grounding the work area 35