H3C WSG1840X Installation Manual page 19

Figure1-7 Grounding the device through the rack
Grounding the device with a grounding conductor buried in the earth
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If earth is available at the installation site, you can ground the device with a grounding
conductor buried in the earth.
Hammer a 0.5 m (1.64 ft) or longer angle iron or steel tube into the earth to serve as a
grounding conductor. Weld the yellow-green grounding cable to the angel iron or steel tube
and treat the joint for corrosion protection.
Figure1-8 Grounding the device by burying the grounding conductor into the earth
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