H3C Technologies H3C SecPath L1000-A Load Balancer - Manual (Page 13)

5
Figure 2 Attaching an ESD wrist strap
(1) ESD wrist strap (2) Lock (3) Alligator clip
EMI
The EMI might be coupled from the source to the L1000-A through the following coupling mechanisms:
• Capacitive coupling
• Inductive coupling
• Radiative coupling
• Common impedance coupling
• Conductive coupling
To prevent EMI, take the following actions:
• Take measures against interference from the power grid.
• Do not use the L1000-A together with the grounding equipment or lightning-prevention equipment
of power equipment, and keep the L1000-A far away from them.
• Keep the L1000-A far away from high-power radio launchers, radars, and equipment with high
frequency or high current to make sure the EMI levels do not exceed the compliant range.
• Use electromagnetic shielding when necessary.
Lightning protection
To protect the L1000-A from lightning better, do as follows:
• Make sure the chassis is correctly grounded. For how to ground the L1000-A, see " Grounding the
L1000-A ."
• Make sure the grounding terminal of the AC power receptacle is correctly grounded.
• Install a lightning protector at the input end of the power supply to enhance lightning protection
capability. For more information, see "
Connecting the AC power supply to a power strip with
lightning protection ."