H3C S5120-9P-SI Installation Manual

Contents

H3C S5120-9P-SI Installation Manual Manual pdf 38 page image

30Step4 Cut the grounding cable to a proper length according to the distance between the switch and thegrounding strip.Step5 Peel 5 mm (0.20 in) of insulation sheath, and then insert the naked metal part through the insulationcovering into the end of the OT terminal.Step6 Secure the metal part of the cable to the OT terminal with a crimper, and then cover it with the insulationcovering. Then heat the insulation covering with a blower to make it completely cover the metal part.Step7 Connect the OT terminal to the grounding pole of the grounding strip, and then fasten it with a hex nut.Figure 36 Connect the grounding cable to the grounding strip(1) Grounding post (2) Grounding strip(3) Grounding cable (4) Hex nutCAUTION:• Only the grounding cables supplied with the S5120-28P-HPWR-SI and S5120-28P-PWR-SI provide OTterminals at the ends connecting the grounding strip. For other switch models, prepare proper OTterminals by yourself.• The fire main and lightning rod of a building are not suitable for grounding the switch. The groundingcable of the switch should be connected to the grounding device for the equipment room.Where a grounding conductor can be buriedWhen there is no grounding strip, but an area with exposed earth is available nearby where agrounding conductor can be buried, hammer a 0.5 m (1.64 ft) or longer angle iron or steel tube into theearth. The angle iron should have a dimension no less than 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in) andthe steel tube should have a wall thickness no less than 3.5 mm (0.14 in) and be zinc-coated. Weld theyellow-green grounding cable to the angel iron or steel tube and treat the joint for corrosion protection.