General Safety Precautions

Read all safety information before installing, operating, and maintaining Huawei equipment.
To minimize risk of personal injury and equipment damage, always follow all safety precautions marked on equipment and described in manuals.
The Caution, Warning and Danger sections in the manual are only a supplement and do not represent all safety instructions.
Use the equipment only where all design specifications are met. Otherwise, any resulting equipment failure and its negative consequences to equipment, parts, personnel, and property will not be covered by the warranty.

Definitions

Skilled personnel:
Person with relevant education or experience to enable him or her to identify hazards and to take appropriate actions to reduce the risks of injury to themselves and others
Instructed person:
Person instructed or supervised by a skilled person as to energy sources and who can responsibly use equipment safeguards and precautionary safeguards with respect to those energy sources.
Ordinary person:
Person who is neither a skilled person nor an instructed person.

Symbol Conventions

: Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
: Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
: Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.
: Indicates a part exposed to high voltage. This symbol warns operators that both direct and indirect contact with the power grid is fatal. Such areas include hazardous voltage points or protective power supply covers that may be removed during maintenance.
: Indicates overheating: Burned fingers when handling the parts, Wait one-half hour after switching off before handling parts.
: High touch current warning labels: This identifier attached to the protection ground terminal nearby, Warn products have high touch current, Connect to earth before connecting to supply, To avoid danger of electric shock.
: Multiple power sources warning labels: when the device is powered off, you must disconnect all power sources.
: Indicates that microwave emission. The symbol is attached near the output socket of the transmitter power amplifier or antenna socket of the transmitter combiner to indicate RF radiation. Do not tamper with the transmitter output feeder or antenna feeder connector when the transmitter is on. Turn off the transmitter before disconnecting the feeder connector or working near the transmit antenna.
or : Indicates protection earthing. This symbol is attached next to a protection ground terminal next to grounded equipment and an external ground system. An equipment ground cable is connected to an external ground bar through the protection ground terminal.
: Indicates equipotential bonding. This symbol is found with equipotential terminals inside equipment.
: Indicates electrostatic discharge. This symbol is used in all electrostatic sensitive areas. Before operating equipment in these areas, wear ESD gloves or an ESD wrist strap.
: Indicates that the equipment is safe to use in altitudes below 2000 m (6561.6 ft.).
: Indicates that the equipment is not safe to use in tropical climates.
: Moving fan blade: Keep body parts away from fan blades.
: Prompts users to read the instruction manual.
: This label attached to products visible position, is used to indicate that equipment intended only for use in fixed installations and intended to be floor standing on a non-combustible surface need not be provided with a fire enclosure bottom.

Basic Precautions

Trained personnel must be certified, understand all required safety regulations, and master correct operational methods before installing, operating and maintaining Huawei equipment.
All work with equipment must comply with local laws and regulations. Safety information in the manual only serves as a supplement. In addition:
- Only skilled and instructed person can install, operate, and maintain equipment.
- Only skilled and instructed person can remove safety infrastructure and maintenance equipment.
- Ordinary person must report faults or errors that may cause safety issues promptly.

All personnel working with equipment should have high-voltage operation, climbing, special equipment operation, and other operational qualifications required by the local country.
If personal injury or equipment damage occurs during installation, stop operations immediately, report the situation to the project owner, and take effective protective measures.
All work on outdoor equipment is strictly forbidden in lightning, rain, snow, wind and other adverse weather conditions. Such work includes but is not limited to outdoor equipment transportation, cabinet installation, power cable installation, and outdoor cable connection.
Do not wear watches, jewelry, or other conductive objects when working with equipment.
Dedicated insulation safety tools such as gloves, clothing, helmet, and shoes must be worn at all times, as shown in Figure 1.
Figure 1 Safety personal protective equipment (PPE)
Always follow the procedures in the Hardware Installation and Maintenance Guide, Configuration Guide, and Operation and Maintenance Guide while working.
Use a voltmeter to measure the voltage at the contact point before touching any metal surface or terminal to prevent electric shocks.
Ensure that all slots are filled with boards or filler panels. Avoid exposure to board hazardous voltage and heat by ensuring that ventilation channels are working normally, that electromagnetic interference is controlled, and that the backplane, motherboard, and boards are free from dust or foreign matter.
After equipment installation, conduct routine checks and maintenance. Promptly replace faulty parts as required by the Hardware Installation and Maintenance Guide and Operation and Maintenance Guide.
After equipment installation, clear the area of packaging materials such as the box, styrofoam, plastic, and cable ties.
In case of fire, evacuate from the building or equipment area and activate the fire alarm or call the fire emergency number. Do not reenter the burning building under any circumstances.