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TP48200A-HX09A3, TP48200A-HX09A4, TBC300A-DCA3, TBC300A-DCA5, TBC300A-TCA2 Outdoor Power System User Manual

This document describes the DC power systems in terms of their features, configurations, components, and maintenance methods.
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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).
Working at Heights

Working at Heights

Avoid object falling when you work at heights.

When working at heights, fulfill the following requirements:
  • Only trained personnel can work at heights.
  • Prevent the devices and tools that you carry from falling down.
  • Take safety and protection measures, for example, wear a helm and safety belt.
  • Wear warm clothes when working at heights in a cold region.
  • Before working at heights, check that all the lifting facilities are in good condition.

Hoisting Heavy Objects

Do not walk below the cantilever or hoisted objects when heavy objects are being hoisted.

  • Only trained and qualified personnel can perform hoisting operations.
  • Before hoisting heavy objects, check that the hoisting tools are complete and in good condition.
  • Before hoisting heavy objects, ensure that the hoisting tools are fixed to a secure object or wall with good weight capacity.
  • Issue orders with short and explicit words to avoid misoperations.
  • Ensure that the angle formed by two cables is not larger than 90 degrees. See Figure 1-1.
    Figure 1-1  Hoisting heavy objects

Using Ladders

Checking a Ladder
  • Before using a ladder, check whether the ladder is damaged. Only the ladder in good condition can be used.
  • Before using a ladder, you should know the maximum weight capacity of the ladder. Avoid overweighting the ladder.
Placing a Ladder

The recommended gradient of ladders is 75 degrees. You can measure the gradient of the ladder with a right angle or your arms. When using a ladder, ensure that the wider feet of the ladder are downward, or take protection measures for the ladder feet to prevent the ladder from sliding. Ensure that the ladder is placed securely.

Climbing Up a Ladder
When climbing up a ladder, note the following:
  • Ensure that the center of gravity of your body does not deviate from the edges of the two long sides.
  • To minimize the risk of falling, hold your balance on the ladder before any operation.
  • Do not climb higher than the fourth rung of the ladder (counted from up to down).
  • If you want to climb up a roof, ensure that the ladder top is at least one meter higher than the roof.
Updated: 2019-03-05

Document ID: EDOC1000036238

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