Huawei DBS3900 Installation Manual page 111
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Also See for DBS3900:
- Installation manual (556 pages) ,
- Product description (70 pages) ,
- Hardware description (32 pages)
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1 Safety
Figure 1-1 Hoisting heavy objects
Using Ladders
Checking a Ladder
Placing a Ladder
The recommended gradient of ladders is 75 degrees. You can measure the gradient of the
ladder with an angle square 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.
1-6
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
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 overweighing the ladder.
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Copyright © Huawei Technologies Co., Ltd.
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