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Lightning-Protection Grounding–Make sure that the voltages between L–N, L-PE, and N-PE meet the requirements of telecommunications devices
After installing the devices, make sure that the voltage between L-N is 220 V, the voltage between L-PE is below 310 V, and the voltage between N-PE is below 90 V. Otherwise, electricity leakage may occur on the device.
Device Power-on–Remove the condensation in the outdoor cabinet before powering on the cabinet
If an outdoor cabinet is installed in an area with drastic temperature changes between day and night and the cabinet has not been used for a long time, the cabinet usually has condensation on the inside. In such a case, if the cabinet is powered on directly, a short circuit may occur in the cabinet, which may burn the cabinet. Therefore, when condensation exists inside the cabinet, use a dry cloth to wipe away the condensation first. Then, start the heater or other temperature control devices to dry the inside of the cabinet. After the inside of the cabinet is dry, power on the cabinet.
Others–Wear ESD gloves or an ESD wrist strap when inserting and removing the board.
Wear ESD gloves or an ESD wrist strap when inserting and removing the board. Do not insert or remove the board without using any protective tool. Otherwise, the electrostatic discharged by the human body may damage the board components.
Others–Use the standard tool for punching wires
Use the standard tool for punching wires. Do not use other tools, such as the pliers, for punching wires. Using such sub-standard tools to punch wires results in poor wire punching quality and poor line connectivity, which affects the service provisioning and may even damage the terminal block.
Others–Insert and remove the board correctly
When inserting or removing the board, make sure that the board is aligned with the board tracks. Do not employ excessive force. Otherwise, the board may collide with other boards. The collision may damage the board components.
Others–Store the board properly
To transport the board, place the board into an ESD bag, and then place the ESD bag into a carton. Do not stack the board.
Others–Guide for repairing the paint
If the device coating layer is damaged, the shell of the device will be rusted within a short time even if the coating layer is of the best quality. If the paint of the device surface is scratched during installation, repair the paint in time to prevent corrosion. In an area where devices corrode easily, repair the paint of the metallic part at the grounding point after grounding is completed.
That's all for today's analysis of equipment installation issues.
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