Typical electrostatic voltage levels
Relative humidity
Event
10%
40%
55%
Walking across carpet
35,000 V
15,000 V
7,500 V
Walking across vinyl floor
12,000 V
5,000 V
3,000 V
Motions of bench worker
6,000 V
800 V
400 V
Removing DIPS from plastic tube
2,000 V
700 V
400 V
Removing DIPS from vinyl tray
11,500 V
4,000 V
2,000 V
Removing DIPS from Styrofoam
14,500 V
5,000 V
3,500 V
Removing bubble pack from PCB
26,500 V
20,000 V
7,000 V
Packing PCBs in foam-lined box
21,000 V
11,000 V
5,000 V
Preliminary replacement requirements
33
Содержание DV3
Страница 1: ...HP Pavilion dv3 Entertainment PC Maintenance and Service Guide ...
Страница 4: ...iv MSG revision history ...
Страница 6: ...vi Safety warning notice ...
Страница 10: ...x ...
Страница 25: ...Computer major components Computer major components 15 ...
Страница 81: ...Reverse this procedure to install the optical drive connector board Component replacement procedures 71 ...
Страница 116: ...workstation guidelines 34 106 Index ...