H3C CR16000-M, Руководство по установке

Страница: 12 / 116

1-6
•
If there is any possibility that you might touch a live part on the device, you must disconnect
power from the upper-level equipment of that live part.
•
Before connecting a power cable, verify that the input voltage is within the rated voltage range
of the device.
•
Before connecting a power cable, check the cable and terminal for reversed polarities.
•
Before powering on the device, make sure electrical connections are correct.
Power cables
WARNING!
Do not connect or remove power cables when the device is operating. If you do so, electric arcs or
sparks might cause fire or hurt your eyes.
•
To avoid short circuit and bodily injury or fire, always check that the insulation of the power cable
is not damaged.
•
Before connecting or removing a power cable, turn off the power switch.
•
Before connecting a power cable, verify that the label on the power cable is correct.
•
The power cable kits must meet the local certification requirements.
Cabling
•
Using a cable in a high-temperature environment might cause the insulation layer to deteriorate
and break. Leave sufficient distance between cables and the heat-generating devices.
•
After a power cable is led into the equipment room, install a power surge protector that meets
the local industry standards and connect it to the grounding terminal.
•
Route and bind power cables, grounding cables, and signal cables separately. For parallel
cabling, make sure the space between cables is not less than 30 mm (1.18 in).
•
Route grounding cables indoor or bury them in the earth. Do not route a grounding cable from
outdoor or from near the tower foot.
•
Do not route cables through the air outlet vents in the rack.
TNV circuit
•
To avoid electric shocks, do not connect a safety extra low voltage (SELV/ES1) circuit to a
communication network voltage (TNV/ES2) circuit.
•
Do not operate the device or cables in lightning conditions.