H3c-technologies H3C S3100V2 Series Switches Manual do Utilizador descarregar pdf (Página 37)

CAUTION:

Hammer a 0.5 m (1.64 ft) or lon

er an

le iron or steel tube into the earth. The an

le iron should have a

dimension no less than 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in) and the steel tube should have a wall

thickness no less than 3.5 mm (0.14 in) and be zinc-coated.

Figure 41 Ground the switch by burying the grounding conductor into the earth

(1) Grounding screw (2) grounding cable (3) Earth ground

(4) Joint (5) Grounding conductor (6) Switch rear panel

Grounding the switch with the PE wire of an AC power supply

If the switch is AC powered and no grounding strip or area with exposed earth is available at the

installation site, you can ground the switch through the PE wire of the AC power supply, as shown in

Figure 42.

CAUTION:

• Make sure that the AC power supply uses a three-wire cable with a protection wire, and the PE wire of

the AC power supply is well

rounded at the power distribution room or AC power supply transformer

side.

• Make sure that the PE connector on the switch is well connected to the PE wire of the AC power supply.

• If the PE wire of the AC power supply is not

rounded at the power distribution room or AC transformer

side, report the problem and make reconstructions.

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H3c-technologies H3C S3100V2 Series Switches Manual do Utilizador Página 37