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Verifying the connection after grounding the switch
•
If you ground the switch by using a grounding strip, perform the following tasks:
a. Use a multimeter to measure the resistance between the switch grounding terminal and
grounding point, and make sure the resistance is less than 0.1Ω.
b. Use a grounding resistance tester to measure the grounding resistance of the grounding
strip, and make sure the grounding resistance is less than 1Ω.
•
If you ground the switch with a grounding conductor buried in the earth ground, perform the
following tasks:
a. Use a multimeter to measure the resistance between the switch grounding terminal and
grounding point, and make sure the resistance is less than 0.1Ω.
b. Use a grounding resistance tester to measure the grounding resistance of the angle iron in
the ground, and make sure the grounding resistance is less than 10Ω. For locations with
high soil resistivity, sprinkle some resistance reducer to reduce soil resistivity or replace soil
around the grounding strip with soil with lower resistance.
For information about resistance measurement, see H3C Network Devices Lightning Protection
Guide.
Connecting the power cord
CAUTION:
• Provide a circuit breaker for each power cord.
• Before connecting the power cord, make sure the circuit breaker on the power cord is turned off.
Table2-4 Power cord connection procedures at a glance
Switch model
S1850V2-52P-EI
S1850V2-28P-EI
S1850V2-28P-HPWR-EI
S1850V2-9P-EI
S1850V2-10P-EI
S1850V2-10P-PWR-EI
Connecting the AC power cord for the fixed AC power supply
1.
Connect the plug of the AC power cord to the AC-input power receptacle on the switch. See
Figure2-15.
2.
Use a cable tie to secure the power cord to the handle near the AC power receptacle. See
Figure2-16.
3.
Connect the other end of the power cord to an AC power source.
Available power source
AC power source
2-15
Connection procedure reference
Connecting the AC power cord for the fixed
AC power supply
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