What are the main causes of deaths and injuries on scaffolds?

Poor scaffold or scaffolding construction..

Careless or negligent workers.

Falling objects, tools and debris.

Employer negligence.

Dangerous environments.

All of the above

Explanation:

Scaffolds:  

Falls  

Falls from scaffolds pose a serious danger to workers. This hazard can result from slipping, a lack of proper fall protection, or unsafe scaffold access. Remember, you are most vulnerable to fall hazards when climbing on or off of a scaffold. Always be aware of your surroundings while working on a scaffold and report any fall hazards that you see.  

Struck-By Falling Objects  

Workers can be injured on scaffolds by being struck by falling objects. This can include tools that fall from one level to the next or debris that can come loose while work is ongoing.  

Electrocution  

Scaffolds too close to power lines increase the risk of injuries and/or death to workers on the scaffolds. You and your employer should make sure the scaffold system, your tools, and the materials you are working with stay at least 10 feet away from power lines or 3 feet away from insulated power lines.  

Scaffold Collapse  

Scaffolds which are not properly constructed can lead to a scaffold collapse. Take the time to look the scaffold over before you use it and report damage if you identify defective components. Damaged components must be replaced before use.  

Scaffolds must be assembled and used according to the manufacturer. All components such as braces and pins must be present.

Planking Giving Way  

If your employer uses bad planking or sets up a partially-planked or -decked scaffold, this increases your risk of falling.