Checking Outdoor Environment; Checking Safety Measures - Huawei Airbridge cBTS3612 Installation Manual

Installation Manual
Airbridge cBTS3612 CDMA Base Station
V. Supplementary equipment
Check whether tables, chairs, power sockets, and telephones are available.
VI. Grounding for lightning-protection
1) Check whether the indoor and outdoor grounding bars are installed in the right
place.
2) Check whether the earth resistance at the grounding points meets the
requirements of project design and grounding specifications.

2.5.2 Checking Outdoor Environment

The project supervisor should contact the user in advance to make sure that the
necessary preparations and tools are available, such as cabling routes and holes.
Then employees from the user should be reminded to have the door keys of the
rooms in the course of the cabling or the keys of the door to the building top.
The project supervisor should check the site environment to see whether it meets
related requirements of the BTS engineering design. The emphasis should be put on
the lightning arrester of the antenna, grounding point of the arrester and the feeder,
outdoor cabling rack, distance between the antenna supports, firmness and wind
resistibility of the support. Check the installation environment of the antenna and
feeder system for any difference from the original surveyed design environment and
any modification accordingly.

2.6 Checking Safety Measures

I. Checking cabinet safety measures
Check whether the parts containing beryllium oxide and hydrochloride are
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damaged. If any damage is observed, the relevant parts should not be discarded
at will, but handled via chemical processing or in a special way as scrap
according to the local rules.
The installation of AC power supply equipment must follow the local safety
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regulations. Check the working environment for power supply to prevent water
invasion into equipment.
Before connecting the AC input power supply, the operation and maintenance
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personnel should first connect the protection-grounding terminal of the
equipment chassis to the earth. The purpose of doing so is to avoid electric
shock on human body resulting from leakage current, which is usually caused by
the EMI filter earth capacitance of the AC power supply input terminal of the
equipment or the Y capacitance of the primary power supply.
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Hardware Installation
2 Installation Preparations