l
Only trained and qualified personnel can perform hoisting operations.
l
Before hoisting heavy objects, check that the hoisting tools are complete and in good
condition.
l
Before hoisting heavy objects, ensure that the hoisting tools are fixed to a secure object or
wall with good weight capacity.
l
Issue orders with short and explicit words to avoid misoperations.
l
Ensure that the angle formed by two cables is not larger than 90 degrees. See
Figure 1-1
Hoisting heavy objects
1.8.2 Using Ladders
Checking a Ladder
l
Before using a ladder, check whether the ladder is damaged. Only the ladder in good
condition can be used.
l
Before using a ladder, you should know the maximum weight capacity of the ladder. Avoid
overweighing the 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, shown in
. When using a ladder, ensure that the
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