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TP48200A-DT19D1 Telecom Power 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).
Mechanical Safety

Mechanical Safety

Hoisting Devices

Do not walk under hoisted objects.

  • Only trained and qualified personnel should perform hoisting operations.
  • Check that hoisting tools are available and in good condition.
  • Before hoisting objects, ensure that hoisting tools are firmly secured onto a load-bearing object or wall.
  • Ensure that the angle formed by two hoisting cables is no more than 90 degrees, as shown in the following figure.

  • Do not drag steel ropes and hoisting tools or bump hoisted objects against hard objects during hoisting.

Using Ladders

  • Use wooden or fiberglass ladders when you need to perform live working at heights.
  • When a step ladder is used, ensure that the pull ropes are secured and the ladder is held firm.
  • Before using a ladder, check that it is intact and confirm its load bearing capacity. Do not overload it.
  • Ensure that the wider end of the ladder is at the bottom, or protective measures have been taken at the bottom to prevent the ladder from sliding.
  • Ensure that the ladder is securely positioned. The recommended angle for a ladder against the floor is 75 degrees, as shown in the following figure. An angle rule can be used to measure the angle.

When climbing a ladder, take the following precautions to reduce risks and ensure safety:

  • Keep your body steady.
  • Do not climb higher than the fourth rung of the ladder from the top.
  • To climb onto a roof, ensure that the ladder top is at least one meter higher than the roof line, as shown in the following figure.

  • Ensure that your body's center of gravity does not shift outside the legs of the ladder.

Drilling Holes

When drilling holes into a wall or floor, observe the following safety precautions:

Do not drill holes into the equipment. Doing so may affect the electromagnetic shielding of the equipment and damage components or cables inside. Metal shavings from drilling may short-circuit boards inside the equipment.

  • Wear goggles and protective gloves when drilling holes.
  • When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings that have accumulated inside or outside the equipment.

Moving Heavy Objects

  • Be cautious to avoid injury when moving heavy objects.

  • When moving the equipment by hand, wear protective gloves to prevent injuries.
  • Move or lift the equipment by holding its handles or lower edges. Do not hold the handles of modules (such as power supply units, fans, and boards) that are installed in the equipment because they cannot support the weight of the equipment.
Updated: 2019-11-27

Document ID: EDOC1000078784

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