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TP48200A-HT19C4-1, TBC300A-TCA2 Outdoor Power System User Manual

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Electrical Safety

Electrical Safety

High Voltage

The high voltage power supply provides power for the device operation. Direct or indirect contact (through damp objects) with high voltage and AC mains supply may result in serious injuries.

  • During the installation of the AC power supply facility, follow the local safety regulations. The personnel who install the AC facility must be qualified to perform high voltage and AC operations.
  • Do not wear conductive articles, such as watches, hand chains, bracelets, and rings during the operation.
  • When water is found in the rack or the rack is damp, switch off the power supply immediately.
  • When the operation is performed in a damp environment, make sure that the device is dry.

Non-standard and improper high voltage operations may result in fire and electric shock. Therefore, you must abide by the local rules and regulations when bridging and wiring AC cables. Only qualified personnel are allowed to perform high voltage and AC operations.

Before powering on a device, ground the device. Otherwise, personal injury or device damage may be caused by high leakage current.


Dedicated tools must be used during high voltage and AC operations. Avoid using ordinary tools.

High Electrical Leakage

Ground the device before powering it on. Otherwise, personal injury or device damage may be caused by high leakage current.

If the "high electrical leakage" tag is present on the power terminal of the device, you must ground the device before powering it on.
Updated: 2019-03-05

Document ID: EDOC1000078969

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