Follow these basic electrical safety precautions to protect yourself from harm and to protect the appliance from damage:
- Be aware of the power switch locations on the appliance chassis, the emergency power-off switch for the housing room, the disconnection switch, and the electrical outlet. This awareness allows quick removal of electrical power from the system should an electrical accident occur.
- Do not work alone when working with high voltage components.
- When working around exposed electrical circuits, another person familiar with the power-off controls should be nearby to switch off the power if necessary.
- Use only one hand when working with powered-on electrical equipment. This prevents making a complete circuit, which can cause electrical shock. Use extreme caution when using metal tools, which can easily damage electrical components or circuit boards when they come into contact with them.
- Do not use mats designed to decrease electrostatic discharge to protect from electrical shock. Instead, use rubber mats that have been specifically designed as electrical insulators.
- The power supply power cord must include a grounding plug and must be plugged into grounded electrical outlets.
- To prevent fire or shock hazard, do not expose the unit to rain or moisture, or install this product near water.
- Avoid installing this product during a lightning storm.
- Ensure that the air vents (openings along the sides and back) are never blocked and that there is sufficient airflow through the vents to prevent over-heating.
- Keep the area around the appliance clean and free of clutter.
- Locate a safe and dry location to set this product, keeping it away from wet surfaces/surroundings.
- While working on the system, do not wear loose clothing, such as neckties and unbuttoned shirt sleeves, which can contact electrical circuits or be pulled into a cooling fan.
- Remove any jewelry or metal objects from your body, which can act as excellent metal conductors, creating short circuits, and potentially harming you if they contact printed circuit boards or powered areas.
For plugged in equipment, the socket-outlet must be installed near the equipment and be easily accessible.
Electrostatic Discharge Precautions
Electrostatic discharge (ESD) is generated by two objects with different electrical charges coming into contact with one another. An electrical discharge, which can damage electronic components and printed circuit boards, neutralizes this difference.
Use the following precautions, which are generally sufficient to avoid ESD and protect your equipment:
- Use a grounded wrist strap designed to prevent static discharge.
- Keep all components and printed circuit boards (PCBs) in their antistatic bags until ready for use.
- Touch a grounded metal object before removing the board from the antistatic bag.
- Do not let components or PCBs contact your clothing, which may result in a charge despite wearing a wrist strap.
- Handle a board by its edges only; do not touch its components, peripheral memory modules, or contacts.
- When handling chips or modules, avoid touching their pins.
- Put the server board and peripherals back into their antistatic bags when not in use.
- For grounding purposes, make sure your computer chassis provides excellent conductivity between the power supply, the case, the mounting fasteners, and the server board.
- After accessing the inside of a system, close the system back up and secure it to the rack unit with the retention screws after ensuring that all connections have been made.