Safety Precautions. This section introduces part of safety precautions which should be followed during the installation and maintenance of Huawei-developed network equipment, страница 2

n  During drilling, pay attention to protect your eyes. The mental chills spattering may injure your eyes.

n  Pay more attention to prevent metal chills from entering the cabinet.

n  Non-standard drilling operation may damage the electromagnetic shielding performance of the cabinet.

n  After drilling, please clean the mental chills in time.

On thunderstorm day, atmosphere will generate high-intensity electromagnetic field. Therefore, in order to prevent equipment from being damaged by electric shock, the grounding measure should be taken in time.

Under the conditions that human body moves, clothes friction, the friction between shoes and ground or ordinary plastic in hand, human body will generate static electromagnetic field which will remain in the human body for quite a long time.

When touching equipment, e.g., before plugging board, circuit board and IC chip etc. are held in hand, anti-electrostatic wrist strap should be worn to prevent the static in human body from damaging sensitive element, and the other end of the anti-electrostatic wrist strap should be in good grounding.

Figure1 Diagram of wearing anti-electrostatic wrist strap

Non-standard operation for battery may result in danger. During operation, operator must prevent battery from short-circuit or prevent electrolyte from overflowing and leaking. Electrolyte overflow may cause the potential trouble on equipment, which will corrode mental part and circuit board and result in the damage of equipment and short-circuit of circuit board. 

Before the operations of battery installation and maintenance, for the sake of safety, the following points should be paid attention to:

n  Strictly prohibit to wear such mental articles as watch, hand chain, bracelet and ring, etc.

n  Use special isolation tools.

n  Use eyes protector and take precautions.

n  Use elastic gloves and wear the apron for preventing electrolyte from overflowing.

n  During transportation, battery should always be kept its electrode front upwards. Bottom-up and inclination condition are strongly prohibited.

Avoid metal object causing short-circuit of battery circuit. For example, the short-circuit resulted from improper usage of tools. If permitted, first disconnect the battery in use and then perform other operations.