Maintaining Safety with Electricity
When working on electrical equipment, follow these guidelines:
• Do not work alone if potentially hazardous conditions exist anywhere in your work space.
• Never assume that power is disconnected from a circuit; always check the circuit before working on it.
• Look carefully for possible hazards in your work area, such as damp floors, ungrounded power extension
cables, frayed or damaged power cords, and missing safety grounds.
• If an electrical accident occurs, proceed as follows:
• Use extreme caution; do not become a victim yourself.
• Disconnect power from the system.
• If possible, send another person to get medical aid. Otherwise, assess the condition of the victim
and then call for help.
• Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate
action.
• Use the product within its marked electrical ratings and product usage instructions.
• Install the product in compliance with local and national electrical codes.
• If any of the following conditions occur, contact the Cisco Technical Assistance Center:
• The power cable or plug is damaged.
• An object has fallen into the product.
• The product has been exposed to water or other liquids.
• The product has been dropped or shows signs of damage.
• The product does not operate correctly when you follow the operating instructions.
• Use the correct external power source. Operate the product only from the type of power source indicated
on the electrical ratings label. If you are not sure of the type of power source required, consult the Cisco
Technical Assistance Center or a local electrician.
• Use approved power cables only. You have been provided with one or more power cables with your
chassis power supply that are intended for use in your country, based on the shipping location. Should
you need to purchase additional power cables, ensure that they are 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 power cable should be greater than the ratings marked on the label.
• To help prevent electrical shock, plug all the power cables into properly grounded electrical outlets.
These power cables are equipped with three-prong plugs to ensure proper grounding. Do not use adapter
plugs or remove the grounding prong from a power cable.
• Observe power strip ratings. Make sure that the total current rating of all products that are plugged into
the power strip does not exceed 80 percent of the power strip rating.
• Do not modify power cables or plugs yourself. Consult with a licensed electrician or your power company
for site modifications. Always follow your local and national wiring codes.
Cisco Catalyst 9600 Series Switches Hardware Installation Guide
22
Preparing for Installation
Maintaining Safety with Electricity
