HP rp7405 User Guide, Third Edition - hp rp7405/rp7410 Servers - Page 130

C1 Raised Floor Ground System, Equipment Grounding Implementation Details, C-1

Get HP rp7405 PDF manuals and user guides View all HP rp7405 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 130 highlights

Site Preparation Grounding Systems • Good-Use the raised floor structure as a ground grid. In this case, the floor must be designed as a ground grid with bolted down stringers and corrosion resistive plating (to provide low resistance and attachment points for connection to service entrance ground and server equipment). The use of conductive floor tiles with this style of grid further enhances ground performance. Figure C-1 Raised Floor Ground System Equipment Grounding Implementation Details If it has been determined to be necessary, connect all Hewlett-Packard equipment cabinets to the site ground grid as follows: Step 1. Attach one end of each ground strap to the applicable cabinet ground lug. Step 2. Attach the other end to the nearest pedestal base (raised floor) or cable trough ground point (nonraised floor). Step 3. Check that the braid contact on each end of the ground strap consists of a terminal and connection hardware (a 1/4-in. (6.0-mm) bolt, nuts, and washers). Step 4. Check that the braid contact connection points are free of paint or other insulating material and treated with a contact enhancement compound (similar to Burndy Penetrox). 108 Appendix C

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
Appendix C
Site Preparation
Grounding Systems
108
•
Good—Use the raised floor structure as a ground grid. In this case, the floor must be designed as a ground
grid with bolted down stringers and corrosion resistive plating (to provide low resistance and attachment
points for connection to service entrance ground and server equipment). The use of conductive floor tiles
with this style of grid further enhances ground performance.
Figure C-1
Raised Floor Ground System
Equipment Grounding Implementation Details
If it has been determined to be necessary, connect all Hewlett-Packard equipment cabinets to the site ground
grid as follows:
Step 1.
Attach one end of each ground strap to the applicable cabinet ground lug.
Step 2.
Attach the other end to the nearest pedestal base (raised floor) or cable trough ground point
(nonraised floor).
Step 3.
Check that the braid contact on each end of the ground strap consists of a terminal and connection
hardware (a 1/4-in. (6.0-mm) bolt, nuts, and washers).
Step 4.
Check that the braid contact connection points are free of paint or other insulating material and
treated with a contact enhancement compound (similar to Burndy Penetrox).