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Safety Precautions
Thunderstorms
Do not work with electrical current or work in elevated or exposed locations during a thunderstorm.
Extreme weather conditions
OAU 2A is usually installed outdoors. If weather conditions are extreme during an installation, personnel
should follow the related local guidelines and regulations to safeguard personal health and safety.
Elevated locations
OAU 2A is usually installed in an elevated location, for example, on the rooftop of a building. For installation
in elevated locations, installation personnel must:
• Have the proper training and qualifications, and meet health requirements.
• Wear helmets, safety belts, and anti-slip footwear.
• Wear clothing and gloves appropriate to weather conditions.
• Work in teams of two or more.
• Test hoisting tools before use.
• Avoid installation during extreme weather conditions, such as during thunderstorms, blizzards, or gales.
In addition, all site visitors must wear helmets.
Microwave
High-power radio frequency signals are harmful. Avoid exposure to transmission from the antennas of
microwave equipment that has the radiation warning symbol (
maintenance on an antenna located on a tower that has multiple antennas, avoid exposure to radiation from
other antennas.
Moving and hoisting heavy objects
To move or hoist heavy objects, use appropriate equipment and adhere to the following guidelines:
• All personnel should wear helmets and protective clothes, gloves, and shoes.
• Move heavy objects along a flat obstacle-free path.
• Do not lift heavy objects by hand. Use appropriate equipment instead.
• When items are hoisted, ensure that those standing nearby are safe from falling objects.
• Use hoisting tools properly. Do not exceed load allowances to prevent damage to pulleys or slings.
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High temperature
If the ambient temperature reaches 55°C, the surface temperature of an OAU 2A may exceed 70°C.
Therefore, wear protective gloves when handling the OAU 2A. A high-temperature warning label (
attached to each OAU 2A.
Handling of OAU 2A or mounting kits
Wear clean gloves when handling the OAU 2A or mounting kits.
Lasers
Do not look into an optical port without eye protection.
Corrosion
Anti-corrosion measures are required if an OAU 2A is installed in a location that is prone to corrosion. Contact
the local Huawei office for details. A location is prone to corrosion if it is:
• Within 3.7 km of an ocean or a salt water lake
• Within 3 km of a heavy pollution source, such as a smelting factory or coal mine
• Within 2 km of a medium pollution source, such as a chemical, rubber, or electroplating plant
• Within 1 km of a light pollution source, such as a food/leather processing plant or heating boiler
Local rules and regulations
If local rules and regulations require that anti-corrosion measures must be taken for ground connections,
comply with local rules and regulations.
Unpacking
To prevent water vapor from accumulating inside the device:
• After unpacking an OAU 2A, power it on within 24 hours.
• Do not power off an OAU 2A for more than 24 hours during maintenance.
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