H3C Technologies H3C S5800 Series Switches User Manual
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from the outside of the building, you may add a dedicated
lightening arrester at the input end of the cable.
•
To enhance lightening protection, you may need to add a power
lightening arrester at the input end.
•
Wear an ESD-preventive wrist strap when installing the RPS unit,
and make sure that the wrist strap makes good skin contact.
•
To avoid electric shock, NEVER open the chassis of the RPS unit
while it is in operation; try not to open the RPS unit even if it is not
electrified.
•
Unplug the power cord before cleaning the RPS unit.
•
Keep the equipment room clean. The limits on the concentrations of
dust and harmful gases in the equipment room are shown in the
following tables:
Table 3 Limit on dust concentration
Mechanical active
material
Limit (particles/m³)
Dust particles
≤ 3 × 10
4
(No visible dust on tabletop over
three days)
Note: Dust particle size ≥ 5μm
Table 4 Limits on harmful gas concentration
Gas Limit
(mg/m
3
)
SO
2
0.2
H
2
S 0.006