Dell EMC ML3 User Manual page 14

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Dell EMC ML3 Tape Library: User's Guide
To prevent a possible shock from touching two surfaces with different
protective ground (earth), use one hand, when possible, to connect or
disconnect signal cables. (D001)
Overloading a branch circuit is potentially a fire hazard and a shock hazard
under certain conditions. To avoid these hazards, ensure that your system
electrical requirements do not exceed branch circuit protection requirements.
Refer to the information that is provided with your device or the power
rating label for electrical specifications. (D002)
If the receptacle has a metal shell, do not touch the shell until you have
completed the voltage and grounding checks. Improper wiring or grounding
could place dangerous voltage on the metal shell. If any of the conditions
are not as described, STOP. Ensure the improper voltage or impedance
conditions are corrected before proceeding. (D003)
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the devices that attach to the system. It is
the responsibility of the customer to ensure that the outlet is correctly wired
and grounded to prevent an electrical shock. A lightning bolt symbol always
accompanies a danger notice to represent a dangerous electrical condition.
(D004)
When working on or around the system, observe the following precautions:
Electrical voltage and current from power, telephone, and communication
cables are hazardous. To avoid a shock hazard:
v If Dell supplied a power cord(s), connect power to this unit only with the
Dell provided power cord. Do not use the Dell provided power cord for
any other product.
v Do not open or service any power supply assembly.
v Do not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical storm.
v The product might be equipped with multiple power cords. To remove all
hazardous voltages, disconnect all power cords.
v Connect all power cords to a properly wired and grounded electrical
outlet. Ensure that the outlet supplies proper voltage and phase rotation
according to the system rating plate.
v Connect any equipment that will be attached to this product to properly
wired outlets.
v When possible, use one hand only to connect or disconnect signal cables.
v Never turn on any equipment when there is evidence of fire, water, or
structural damage.
v Do not attempt to switch on power to the machine until all possible
unsafe conditions are corrected.
v Assume that an electrical safety hazard is present. Perform all continuity,
grounding, and power checks specified during the subsystem installation
procedures to ensure that the machine meets safety requirements.
v Do not continue with the inspection if any unsafe conditions are present.
v Disconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
v Connect and disconnect cables as described in the following procedures
when installing, moving, or opening covers on this product or attached
devices.