Rack-Mount Safety Precautions - Lenovo ThinkSystem NE10032 RackSwitch Installation Manual

Rack-mount Safety Precautions

10
NE10032 Installation Guide
 Check to see if there are any exposed copper strands coming from the installed
wire. When this installation is done correctly there should be no exposed copper
wire strands extending from the terminal block. Any exposed wiring can
conduct harmful levels of electricity to persons touching the wires.
 The power source for the device should be located near the unit and should be
easily accessible.
 Circuit Overloading: Consideration should be given to the connection of the
equipment to the supply circuit and the effect that overloading of circuits might
have on overcurrent protection and supply wiring. Appropriate consideration
of equipment nameplate ratings should be used when addressing this concern.
For your protection, observe the following rack-mount safety precautions when
setting up your equipment:
Elevated Operating Ambient - If installed in a closed or multi-unit rack

assembly, the operating ambient temperature of the rack environment may be
greater than room ambient. Therefore, consideration should be given to
installing the equipment in an environment compatible with the maximum
ambient temperature (Tma) specified by the manufacturer.
 Reduced Air Flow - Installation of the equipment in a rack should be such that
the amount of air flow required for safe operation of the equipment is not
compromised.
Mechanical Loading - Mounting of the equipment in the rack should be such

that a hazardous condition is not achieved due to uneven mechanical loading.
 Circuit Overloading - Consideration should be given to the connection of the
equipment to the supply circuit and the effect that overloading of the circuits
might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used

when addressing this concern.
Reliable Earthing of rack-mounted equipment should be maintained. Particular

attention should be given to supply connections other than direct connections to
the branch circuit (for example, use of power strips).
For safety, equipment should always be loaded from the bottom up. That is,

install the equipment that will be mounted in the lowest part of the rack first,
then the next higher systems, etc.
 To prevent the rack from tipping during equipment installation, the anti-tilt bar
on the rack must be deployed.
 The mounting brackets provided must be used to mount the device securely in a
rack-mount unit.