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• Use only approved power cable(s). If you have not been provided with a power
cable for your server, storage system, or appliance, or for any AC-powered option
intended for your system, purchase a power cable that is approved for use in your
country. The power cable must be rated for the product and for the voltage and
current marked on the product’s electrical ratings label. The voltage and current
rating of the cable should be greater than the ratings marked on the product.
• To help prevent electric shock, plug the system/components and peripheral
power cables into properly grounded electrical outlets. These cables are
equipped with three-prong plugs to help ensure proper grounding. Do not use
adapter plugs or remove the grounding prong from a cable. If you must use an
extension cable, use a three-wire cable with properly grounded plugs.
• Observe extension cable and power strip ratings. Make sure that the total
ampere rating of all products plugged into the extension cable or power strip
does not exceed 80 percent of the extension cable or power strip ampere ratings
limit.
• To help protect your system/components from sudden, transient increases and
decreases in electrical power, use a surge suppressor, line conditioner, or un-
interruptible power supply (UPS).
• Position system cables and power cables carefully; route system cables and the
power cable and plug so that they cannot be stepped on or tripped over. Be sure
that nothing rests on your system components’ cables or power cable.
• Do not modify power cables or plugs. Consult a licensed electrician or your
power company for site modifications. Always follow your local/national wiring
rules.
• To help avoid possible damage to the system board, wait 5 seconds after turning
off the system before removing a component from the system board or discon-
necting a peripheral device from the computer.
• Handle batteries carefully. Do not disassemble, crush, puncture, short external
contacts, dispose of in fire or water, or expose batteries to temperatures higher
than 60 degrees Celsius (140 degrees Fahrenheit). Do not attempt to open or ser-
vice batteries; replace batteries only with batteries designated for the product.
• Turn down the volume before using headphones or other audio devices.
Precautions for Servers, Storage Systems, and Appliances
Observe the following additional safety guidelines for your system:
• Unless your installation and/or troubleshooting documentation specifically allows
it, do not remove enclosure covers, attempt to override the safety interlocks, or
access any components inside the system. Depending on your system, installa-
tion and repairs may be done only by individuals who are qualified to service your
computer or storage system equipment and trained to deal with products capa-
ble of producing hazardous energy levels.