What problems should we pay attention to when using ladder?

What problems should we pay attention to when using ladder?
1. Body tired, drugs, alcohol or physical barriers, stop all kinds of the ladder.
2. Ladders should be placed on the consolidated air to prevent ice, snow or slip on the surface without skid.
Proof and fixed equipment; to stop exceeding the maximum load bearing quality during operation.
3. Prevent the use of ladders in strong winds.
4. Metal ladder conduction, to prevent close to the live place;.
5. People climb the ladder, hold hands, body weight in the two column central ladder stick.
6. Do not stand on the ladder within 1 meters from the top of the ladder, always maintain 1 meters of safe.
Maintenance height, not to climb the top of the top support point.
7. Do not exceed the top of your head, so as not to lose balance, attack risk.
8. Stop from one side of the ladder to the other side.