Figure 1-2
Lifting a weight
Safety Guide on Ladder Use
Checking the Ladder
l
Check the ladder before using it. Check the maximum weight that the ladder can support.
l
Never overload the ladder.
Placing the Ladder
l
The slant angle is preferred to be 75
o
. The slant can be measured with the angle square or
with arms, as shown in
. When using a ladder, place the wider end of the ladder
on the ground and take protective measures on the base of the ladder against slippage. Place
the ladder on a stable ground.
When climbing the ladder, ensure the following:
l
The gravity of the body does not shift from the edge of the ladder.
l
Keep balance on the ladder before performing any operation.
l
Do not climb higher than the fourth highest step of the ladder.
If you tend to climb to the roof, the length of the ladder should be at least one meter higher than
the eave, as shown in
.
1 Safety Information
RRU
User Guide
1-10
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
Issue 01 (2008-04-18)